Income Tax Disclosure [Abstract]
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
U.S. Federal
Federal Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current Federal Tax Expense (Benefit)
Deferred
Deferred Federal Income Tax Expense (Benefit)
Total
Federal Income Tax Expense (Benefit), Continuing Operations
State and local
State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current State and Local Tax Expense (Benefit)
Deferred
Deferred State and Local Income Tax Expense (Benefit)
Total
State and Local Income Tax Expense (Benefit), Continuing Operations
Foreign
Foreign Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current Foreign Tax Expense (Benefit)
Deferred
Deferred Foreign Income Tax Expense (Benefit)
Total
Foreign Income Tax Expense (Benefit), Continuing Operations
Total Income Taxes
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current Income Tax Expense (Benefit)
Deferred
Deferred Income Tax Expense (Benefit)
Total
Income Tax Expense (Benefit)
Business Combinations [Abstract]
Business Acquisition
Business Combination Disclosure [Text Block]
Earnings Per Share [Abstract]
Basic:
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Weighted average shares outstanding
Weighted Average Number of Shares Outstanding, Basic
Diluted:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Effect of dilutive securities:
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Common stock options
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Total weighted average shares outstanding assuming dilution
Weighted Average Number of Shares Outstanding, Diluted
Shares of common stock issued from the exercise of stock options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Equity [Abstract]
Purchase of Common Shares
Treasury Stock [Text Block]
Valuation and Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts Disclosure [Table]
Valuation and Qualifying Accounts Disclosure [Table]
Valuation Allowances and Reserves Type [Axis]
Valuation Allowances and Reserves Type [Axis]
Valuation Allowances and Reserves [Domain]
Valuation Allowances and Reserves [Domain]
Allowance for doubtful accounts
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation and Qualifying Accounts Disclosure [Line Items]
Activity in Provision for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at the Beginning of the Period
Valuation Allowances and Reserves, Balance
Charged to Revenue, Cost or Expense
Valuation Allowances and Reserves, Charged to Cost and Expense
Deduction
Valuation Allowances and Reserves, Deductions
Balance at the End of the Period
Debt Disclosure [Abstract]
Long-term Debt and Line of Credit
Debt Disclosure [Text Block]
Inventory Disclosure [Abstract]
Inventory
Inventory, Net
Inventory, non-current
Inventory, Noncurrent
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Scenario, Forecast
Scenario, Forecast [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Debt instrument, covenant, fixed charge coverage ratio, maximum
Debt Instrument, Covenant, Fixed Charge Coverage Ratio, Maximum
Debt Instrument, Covenant, Fixed Charge Coverage Ratio, Maximum
Debt instrument, covenant, leverage ratio, maximum
Debt Instrument, Covenant, Leverage Ratio, Maximum
Debt Instrument, Covenant, Leverage Ratio, Maximum
Property, Plant and Equipment [Abstract]
Summary of property and equipment
Property, Plant and Equipment [Table Text Block]
Accounting Policies [Abstract]
Schedule of Revenue by Major Customers, by Reporting Segments [Table]
Schedule of Revenue by Major Customers, by Reporting Segments [Table]
Customer [Axis]
Customer [Axis]
Customer [Domain]
Customer [Domain]
Customer One
Customer One [Member]
Customer One [Member]
Revenue, Major Customer [Line Items]
Revenue, Major Customer [Line Items]
Contract revenues
Contracts Revenue
Summary of Deferred Tax Assets and Liabilities, as Reported in the Balance Sheet [Abstract]
Deferred Tax Assets and Liabilities, Net, Classification [Abstract]
Deferred Tax Assets and Liabilities, Net, Classification [Abstract]
Net current deferred tax assets
Deferred Tax Assets, Net, Current
Net non-current deferred tax liabilities
Deferred Tax Liabilities, Net, Noncurrent
Total net deferred tax liabilities:
Deferred Tax Liabilities, Net
Income Taxes
Income Tax Disclosure [Text Block]
Payables and Accruals [Abstract]
Accrued Liabilities
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]
Statement of Stockholders' Equity [Abstract]
Statement [Table]
Statement [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Common Stock
Common Stock [Member]
Treasury Stock
Treasury Stock [Member]
Other Comprehensive Income (Loss)
AOCI Attributable to Parent [Member]
Additional Paid-In Capital
Additional Paid-in Capital [Member]
Retained Earnings
Retained Earnings [Member]
Statement [Line Items]
Statement [Line Items]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance, shares
Common Stock, Shares, Issued
Beginning balance
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Beginning treasury stock, shares
Treasury Stock, Shares
Stock-based compensation
Share-based Compensation
Exercise of stock options, shares
Exercise of stock options
Stock Issued During Period, Value, Stock Options Exercised
Issue restricted stock, shares
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures
Cash flow hedge, net of tax
Other Comprehensive Income (Loss), Net of Tax
Forfeiture of restricted stock, shares
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited
Purchase of stock into treasury, shares
Treasury Stock, Shares, Acquired
Purchase of shares into treasury
Treasury Stock, Value, Acquired, Cost Method
Net (loss) income
Net Income (Loss) Attributable to Parent
Ending balance, shares
Ending balance
Ending treasury stock, shares
Stock Issued During Period, Value, New Issues
Stock Issued During Period, Value, New Issues
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Reported Value Measurement [Member]
Reported Value Measurement [Member]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
TAS Commercial Concrete
TAS Commercial Concrete [Member]
TAS Commercial Concrete [Member]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Customer Relationships
Customer Relationships [Member]
Contractual backlog
Order or Production Backlog [Member]
Trade Names
Trade Names [Member]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets, Fair Value Disclosure
Finite-lived Intangible Assets, Fair Value Disclosure
Finite-lived intangibles acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles
Acquired finite-lived intangible assets, useful life
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Amortization expense
Amortization of Intangible Assets
Commitments and Contingencies Disclosure [Abstract]
Sale Leaseback Transaction and Operating Leased Assets [Table]
Sale Leaseback Transaction and Operating Leased Assets [Table]
Sale Leaseback Transaction, Description [Axis]
Sale Leaseback Transaction, Description [Axis]
Sale Leaseback Transaction, Name [Domain]
Sale Leaseback Transaction, Name [Domain]
Office building
Office Building [Member]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Vehicles
Vehicles [Member]
Other facilities
Other Facilities [Member]
Other Facilities [Member]
Sale Leaseback Transaction and Operating Leased Assets [Line Items]
[Line Items] for Sale Leaseback Transaction and Operating Leased Assets [Table]
Sale Leaseback Transaction [Abstract]
Sale Leaseback Transaction [Abstract]
Sale Leaseback Transaction [Abstract]
Proceeds from the sale-leaseback transaction
Sale Leaseback Transaction, Gross Proceeds, Investing Activities
Sale-leaseback term
Sale Leaseback Transaction, Lease Term
Sale Leaseback Transaction, Lease Term
Deferred gain on sale-leaseback transaction
Sale Leaseback Transaction, Deferred Gain, Gross
Gain recognized on sale-lease back transaction
Sale Leaseback Transaction, Current Period Gain Recognized
Rent expense
Sale Leaseback Transaction, Rent Expense
Options to extend term of the lease for additional five years
Sale Leaseback Transaction, Option to Extend Lease Term, Possible Number of Extensions
Sale Leaseback Transaction, Option to Extend Lease Term, Possible Number of Extensions
Maximum extension term of each option to extend
Sale Leaseback Transaction, Option to Extend Lease, Extension Period
Sale Leaseback Transaction, Option to Extend Lease, Extension Period
Operating Leases, Rent Expense, Net [Abstract]
Operating Leases, Rent Expense, Net [Abstract]
Operating leases, rent expense
Operating Leases, Rent Expense, Net
Lease term of assets subject to operating leases
Operating Leases, Lease Term
Operating Leases, Lease Term
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of restricted stock activity
Schedule of Nonvested Share Activity [Table Text Block]
Schedule of stock options activity
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Schedule of stock option valuation assumptions
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule of intrinsic value of options exercised and fair value of shares vested
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block]
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Heavy Civil Marine Construction Segment
Heavy Civil Marine Construction Segment [Member]
Heavy Civil Marine Construction Segment [Member]
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
Mexico and the Caribbean
Mexico and the Caribbean [Member]
Mexico and the Caribbean [Member]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Intersegment Eliminations
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Number of reportable segments
Number of Reportable Segments
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Estimate of Fair Value Measurement
Estimate of Fair Value Measurement [Member]
Reported Value Measurement
Commercial Concrete Segment
Commercial Concrete Segment [Member]
Commercial Concrete Segment [Member]
Goodwill [Line Items]
Goodwill [Line Items]
Goodwill impairment, segment value
Goodwill Impairment, Segment Value
Goodwill Impairment, Segment Value
Intangible assets, value
Goodwill
Goodwill
Quarterly Financial Information Disclosure [Abstract]
Restatement Adjustment
Restatement Adjustment [Member]
Income tax expense
Selected Quarterly Financial Information [Abstract]
Selected Quarterly Financial Information [Abstract]
Revenues
Gross profit
Gross Profit
Operating (loss) income
Operating Income (Loss)
Net (loss) income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Earnings Per Share, Basic and Diluted [Abstract]
Earnings Per Share, Basic and Diluted [Abstract]
Basic (USD per share)
Earnings Per Share, Basic
Diluted income (loss) per share (USD per share)
Earnings Per Share, Diluted
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Long-term Debt
Long-term Debt [Member]
Short-term Debt
Short-term Debt [Member]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2015-03
Accounting Standards Update 2015-03 [Member]
Accounting Standards Update 2015-03 [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Term loan-current
Term Loan, Current [Member]
Term Loan, Current [Member]
Term loan-long-term
Term Loan, Noncurrent [Member]
Term Loan, Noncurrent [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Revolving Credit Facility
Revolving Credit Facility [Member]
Term Loan
Term Loan [Member]
Term Loan [Member]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Line of Credit
Line of Credit [Member]
Loans Payable
Loans Payable [Member]
Principal current
Debt Instrument, Carrying Amount, Current
Debt Instrument, Carrying Amount, Current
Principal, long-term
Debt Instrument, Carrying Amount, Noncurrent
Debt Instrument, Carrying Amount Noncurrent
Principal
Long-term Debt, Gross
Deferred Finance Costs, current
Deferred Finance Costs, Current, Net
Deferred Issuance Costs, long-term
Deferred Finance Costs, Noncurrent, Net
Deferred Issuance Costs
Deferred Finance Costs, Net
Net Value, current
Debt, Current
Long-term Debt, Excluding Current Maturities
Long-term Debt, Excluding Current Maturities
Total debt
Long-term Debt
Hedging Liabilities, Noncurrent
Hedging Liabilities, Noncurrent
Line of credit facility, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Stated interest rate
Debt Instrument, Interest Rate, Stated Percentage
Debt issuance cost
Debt Issuance Cost
Debt issuance expense
Debt Related Commitment Fees and Debt Issuance Costs
Debt, weighted average interest rate
Debt, Weighted Average Interest Rate
Derivative, Fair Value, Net
Derivative, Fair Value, Net
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
GLM Concrete Solutions, LLC
GLM Concrete Solutions, LLC [Member]
GLM Concrete Solutions, LLC [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Federal statutory tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Issued and outstanding membership interest acquired
Business Acquisition, Percentage of Voting Interests Acquired
Payments to acquire businesses
Payments to Acquire Businesses, Gross
Goodwill, net of working capital adjustment
Goodwill, Net of Working Capital Adjustment
Goodwill, Net of Working Capital Adjustment
Goodwill expected to be tax deductible
Business Acquisition, Goodwill, Expected Tax Deductible Amount
Goodwill, tax basis, amortization period
Business Acquisition, Goodwill, Expected Tax Deductible Amortization Period
Business Acquisition, Goodwill, Expected Tax Deductible Amortization Period
Property and equipment useful life
Property, Plant and Equipment, Useful Life
Acquisition related costs
Business Combination, Acquisition Related Costs
Accounts receivable
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables
Costs and estimated earnings in excess of billings on uncompleted contracts
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Costs in Excess of Billings
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Costs in Excess of Billings
Prepaid expenses and other current assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets
Fixed assets, net
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Investment in GLM Concrete Services, LLC
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equity Method Investments
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equity Method Investments
Other intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Accounts payable
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable
Accrued expenses and other current liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Expenses and Other Liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Expenses and Other Liabilities
Total Acquisition Consideration at August 5, 2015
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Working Capital Adjustment
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred
Total Acquisition Consideration, Final
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation
Business Description and Basis of Presentation [Text Block]
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Revenue Recognition
Revenue Recognition, Percentage-of-Completion Method [Policy Text Block]
Classification of Current Assets and Liabilities
Classification of Current Assets and Liabilities [Policy Text Block]
Classification of Current Assets and Liabilities [Policy Text Block]
Cash and Cash Equivalents
Cash and Cash Equivalents, Policy [Policy Text Block]
Risk Concentrations
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Accounts Receivable
Receivables, Policy [Policy Text Block]
Advertising Costs
Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block]
Environmental Costs
Environmental Costs, Policy [Policy Text Block]
Fair Value Measurements
Fair Value Measurement, Policy [Policy Text Block]
Inventory
Inventory, Policy [Policy Text Block]
Property and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Goodwill
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Intangible Assets
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]
Stock-Based Compensation
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Income Taxes
Income Tax, Policy [Policy Text Block]
Insurance Coverage
Insurance Coverage [Policy Text Block]
Insurance Coverage [Policy Text Block]
Warranty Costs
Standard Product Warranty, Policy [Policy Text Block]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Statement of Comprehensive Income [Abstract]
Change in fair value of cash flow hedge, net of tax expense of $25, and benefit of $90 and $0 for the years ended December 31, 2016, 2015 and 2014, respectively
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax
Total comprehensive (loss) income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Income Statement [Abstract]
Costs of contract revenues
Contract Revenue Cost
Gross profit
Selling, general and administrative expenses
Selling, General and Administrative Expense
Gain (Loss) on Disposition of Assets
Gain (Loss) on Disposition of Assets
Operating income (loss)
Other (expense) income:
Other Nonoperating Income (Expense) [Abstract]
(Gain) loss from sale of assets, net
Gain (Loss) on Disposition of Property Plant Equipment
Other income
Nonoperating Income (Expense)
Interest income
Interest Income, Deposits with Financial Institutions
Interest expense
Interest Expense
Other (expense) income, net
Other Nonoperating Income (Expense)
Income tax expense (benefit)
Net (loss) income
Basic income (loss) per share (USD per share)
Shares used to compute (loss) income per share
Basic (in shares)
Diluted (in shares)
Related Party Transactions [Abstract]
Related Party Transactions
Related Party Transactions Disclosure [Text Block]
Risks and Uncertainties [Abstract]
Concentration Risk [Table]
Concentration Risk [Table]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Accounts receivable
Trade and Contract Retainage Receivables [Member]
Trade and Contract Retainage Receivables [Member]
Contract revenues
Sales Revenue, Services, Net [Member]
Concentration Risk [Line Items]
Concentration Risk [Line Items]
Schedules of concentration of risk, by risk factor
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
Deferred tax asset
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2017
Operating Leases, Future Minimum Payments, Due in Two Years
2018
Operating Leases, Future Minimum Payments, Due in Three Years
2019
Operating Leases, Future Minimum Payments, Due in Four Years
2020
Operating Leases, Future Minimum Payments, Due in Five Years
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Total
Operating Leases, Future Minimum Payments Due
Derivative, by Nature [Axis]
Derivative, by Nature [Axis]
Derivative, Name [Domain]
Derivative, Name [Domain]
Swap
Swap [Member]
Percent of aggregate principal amount hedged
Derivative, Percent of Aggregate Principal Amount Hedged
Derivative, Percent of Aggregate Principal Amount Hedged
Derivative, notional amount
Derivative, Notional Amount
Derivative, number of instruments held (contract)
Derivative, Number of Instruments Held
Interest rate swap liability
Schedule of accrued liabilities
Schedule of Accrued Liabilities [Table Text Block]
Schedule of recognized identified assets acquired and liabilities assumed
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Summary of Pro Forma Results
Business Acquisition, Pro Forma Information [Table Text Block]
Number of operating segments
Number of Operating Segments
Business Acquisition, Pro Forma Information [Abstract]
Business Acquisition, Pro Forma Information [Abstract]
Contract Revenues
Business Acquisition, Pro Forma Revenue
Operating income from continuing operations
Business Acquisition, Pro Forma Operating Income (Loss)
Business Acquisition, Pro Forma Operating Income (Loss)
Net Income
Business Acquisition, Pro Forma Net Income (Loss)
Basic earnings per share (USD per share)
Business Acquisition, Pro Forma Earnings Per Share, Basic
Diluted earnings per share (USD per share)
Business Acquisition, Pro Forma Earnings Per Share, Diluted
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Stock options
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Potential antidilutive securities excluded from future computations (in shares)
Potential Antidilutive Securities Excluded from Future Computations of Earnings, Amount
Potential Antidilutive Securities Excluded from Future Computations of Earnings, Amount
Goodwill and Intangible Assets
Goodwill and Intangible Assets Disclosure [Text Block]
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Schedule II - Valuation and Qualifying Accounts
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Schedule of components of income tax expense (benefit)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of effective income tax reconciliation
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of deferred tax assets and liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Schedule of net deferred tax assets and liabilities as reported in the balance sheet
Schedule of Net Deferred Tax Assets and Liabilities as Reported in the Balance Sheet [Table Text Block]
Schedule of Net Deferred Tax Assets and Liabilities as Reported in the Balance Sheet [Table Text Block]
Components of Deferred Tax Assets and Liabilities [Abstract]
Components of Deferred Tax Assets and Liabilities [Abstract]
Assets related to:
Components of Deferred Tax Assets [Abstract]
Current
Components of Deferred Tax Assets, Current
Components of Deferred Tax Assets, Current
Accrued liabilities
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities, Current
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities, Current
Intangible assets
Deferred Tax Assets, Intangible Assets, Current
Deferred Tax Assets, Intangible Assets, Current
Non-qualified stock options
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost, Non-qualified Stock Options, Current
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost, Non-qualified Stock Options, Current
Other
Deferred Tax Assets, Other, Current
Deferred Tax Assets, Other, Current
Total assets
Deferred Tax Assets, Net of Valuation Allowance, Current
Long- term
Components of Deferred Tax Assets, Noncurrent [Abstract]
Components of Deferred Tax Assets, Noncurrent [Abstract]
Intangible assets
Deferred Tax Assets, Intangible Assets, Noncurrent
Deferred Tax Assets, Intangible Assets, Noncurrent
Net operating loss carryforward
Deferred Tax Assets, Operating Loss Carryforwards, Noncurrent
Deferred Tax Assets, Operating Loss Carryforwards, Noncurrent
Valuation allowance
Deferred Tax Assets, Valuation Allowance, Noncurrent
Non-qualified stock options
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost, Non-qualified Stock Options, Noncurrent
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost, Non-qualified Stock Options, Noncurrent
Foreign tax credits
Deferred Tax Assets, Tax Credit Carryforwards, Foreign
AMT credits
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax
Other
Deferred Tax Assets, Other, Noncurrent
Deferred Tax Assets, Other, Noncurrent
Total assets
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent
Liabilities related to:
Components of Deferred Tax Liabilities [Abstract]
Current
Components of Deferred Tax Liabilities, Current [Abstract]
Components of Deferred Tax Liabilities, Current [Abstract]
Deferred revenue on maintenance contracts
Deferred Tax Liabilities, Tax Deferred Income, Current
Deferred Tax Liabilities, Tax Deferred Income, Current
Other
Deferred Tax Liabilities, Other, Current
Deferred Tax Liabilities, Other, Current
Total liabilities
Deferred Tax Liabilities, Gross, Current
Net current deferred tax assets
Long- term
Components of Deferred Tax Liabilities, Noncurrent [Abstract]
Components of Deferred Tax Liabilities, Noncurrent [Abstract]
Depreciation and amortization
Deferred Tax Liabilities, Property, Plant and Equipment and Intangible Assets, Noncurrent
Deferred Tax Liabilities, Property, Plant and Equipment and Intangible Assets, Noncurrent
Goodwill
Deferred Tax Liabilities, Goodwill and Gain on Acquisition, Noncurrent
Deferred Tax Liabilities, Goodwill and Gain on Acquisition, Noncurrent
Deferred revenue on maintenance contracts
Deferred Tax Liabilities, Tax Deferred Income, Noncurrent
Deferred Tax Liabilities, Tax Deferred Income, Noncurrent
Other
Deferred Tax Liabilities, Other, Noncurrent
Deferred Tax Liabilities, Other, Noncurrent
Total liabilities
Deferred Tax Liabilities, Gross, Noncurrent
Net non-current deferred tax liabilities
Operating Loss Carryforwards [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
State
State and Local Jurisdiction [Member]
Federal Tax Authority
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward
Operating Loss Carryforwards
Valuation allowance
Alternative minimum tax credits, non-expiring
Tax Credit Carryforward, Amount
Excess tax benefit from stock option exercise
Unrecognized Tax Benefits
Accounts Receivable [Abstract]
Receivables [Abstract]
Contract receivable retention
Contract Receivable Retainage
Retainage, long-term
Contract Receivable Retainage, after Next Twelve Months
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
2011 LTIP
2011 LTIP [Member]
2011 LTIP [Member]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Equity Award [Domain]
Performance Shares
Performance Shares [Member]
Title of Individual [Axis]
Title of Individual [Axis]
Relationship to Entity [Domain]
Relationship to Entity [Domain]
Director
Director [Member]
Officers and Executives
Officers and Executives [Member]
Officers and Executives [Member]
Directors, Officers and Executives
Directors, Officers and Executives [Member]
Directors, Officers and Executives [Member]
Chief Operating Officer
Chief Operating Officer [Member]
Executive Officer
Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance awards granted in period
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Approved and authorized maximum number of shares to be issued
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Options, expiration period
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
Options, vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Grants awarded during period
Compensation Arrangement with Individual, Shares Issued
Compensation Arrangement with Individual, Shares Issued
Weighted average grant-date fair value of options granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Compensation expense related to stock based awards outstanding
Allocated Share-based Compensation Expense
Forfeiture rate applied to options
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Proceeds received upon exercise of stock options
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options
Total share-based compensation cost not yet recognized
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized
Share-based compensation cost not yet recognized, period for recognition
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Total intrinsic value of options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Total fair value of shares vested
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value
Schedule of Insurance Coverage [Table]
Schedule of Insurance Coverage [Table]
Schedule of Insurance Coverage [Table]
Insurance Coverage by Liability Policies [Axis]
Insurance Coverage by Liability Policies [Axis]
Insurance Coverage by Liability Policies [Axis]
Insurance Coverage by Liability Policies [Domain]
Insurance Coverage by Liability Policies [Domain]
Insurance Coverage by Liability Policies [Domain]
Other liability policies
Other Liability Policies [Member]
Other Liability Policies [Member]
Maritime employer's liability
Maritime Employer's Liability [Member]
Maritime Employer's Liability [Member]
Watercraft pollution policy
Watercraft Pollution Policy [Member]
Watercraft Pollution Policy [Member]
Insurance Coverage [Line Items]
Insurance Coverage [Line Items]
Insurance Coverage [Line Items]
Levels of insurance coverage maintained by the Company
Levels of Insurance Coverage Maintained by the Company
Levels of Insurance Coverage Maintained by the Company
Amount in excess of primary insurance coverage
Additional Coverage in Excess of Primary Insurance Coverage
Additional Coverage in Excess of Primary Insurance Coverage
Primary limit of insurance coverage
Primary Limit of Insurance Coverage
Primary Limit of Insurance Coverage
Number of Insurance Policies
Number of Insurance Policies
Number of Insurance Policies
Accrual for self-insurance liabilities
Accrued Insurance, Current
Fair Value
Fair Value Disclosures [Text Block]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
Schedule of Debt
Schedule of Debt [Table Text Block]
Debt Maturity Schedule
Schedule of Maturities of Long-term Debt [Table Text Block]
Inventory
Inventory Disclosure [Text Block]
Schedule of Long Lived Assets Held-for-sale [Table]
Schedule of Long Lived Assets Held-for-sale [Table]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Other Nonoperating Income (Expense)
Other Nonoperating Income (Expense) [Member]
Long Lived Assets Held-for-sale [Line Items]
Long Lived Assets Held-for-sale [Line Items]
Depreciation expense
Depreciation
Impairment of Long-Lived Assets to be Disposed of
Impairment of Long-Lived Assets to be Disposed of
Impairment of Long-Lived Assets Held-for-use
Impairment of Long-Lived Assets Held-for-use
Compensation and Retirement Disclosure [Abstract]
Schedule of multiemployer plans
Schedule of Multiemployer Plans [Table Text Block]
Statement of Financial Position [Abstract]
ASSETS
Assets [Abstract]
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Accounts receivable:
Accounts Receivable, Net, Current [Abstract]
Trade, net of allowance of $0 and $0, respectively
Trade Accounts Receivable, Net, Current
Trade Accounts Receivable, Net, Current
Retainage
Contract Receivable Retainage, Next Twelve Months
Other current
Other Receivables
Income taxes receivable
Income Taxes Receivable, Current
Costs and estimated earnings in excess of billings on uncompleted contracts
Costs in Excess of Billings, Current
Assets held for sale
Assets Held-for-sale, Not Part of Disposal Group, Current
Prepaid expenses and other
Prepaid Expense and Other Assets, Current
Total current assets
Assets, Current
Property and equipment, net
Property, Plant and Equipment, Net
Accounts receivable, non-current
Accounts Receivable, Net, Noncurrent
Intangible assets, net of amortization
Intangible Assets, Net (Excluding Goodwill)
Other non-current
Other Assets, Noncurrent
Total assets
Assets
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities and Equity [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Current debt, net of debt issuance costs
Accounts payable:
Accounts Payable, Current [Abstract]
Trade
Accounts Payable, Trade, Current
Retainage
Retention Payable, Due in Next Rolling Twelve Months
Accrued liabilities
Accrued Liabilities, Current
Taxes payable
Accrued Income Taxes, Current
Billings in excess of costs and estimated earnings on uncompleted contracts
Billings in Excess of Cost, Current
Total current liabilities
Liabilities, Current
Long-term debt, net of debt issuance costs
Other long-term liabilities
Other Liabilities, Noncurrent
Deferred income taxes
Total liabilities
Liabilities
Commitments and contingencies
Commitments and Contingencies
Stockholders’ equity:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock -- $0.01 par value, 10,000,000 authorized, none issued
Preferred Stock, Value, Issued
Other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Common stock -- $0.01 par value, 50,000,000 authorized, 28,405,850 and 27,992,589 issued; 27,694,626 and 27,281,358 outstanding at December 31, 2016 and December 31, 2015, respectively
Common Stock, Value, Issued
Treasury stock, 711,231 and 711,231 shares, at cost December 31, 2016 and December 31, 2015, respectively
Treasury Stock, Value
Additional paid-in capital
Additional Paid in Capital
Retained earnings
Retained Earnings (Accumulated Deficit)
Total stockholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
Contractors [Abstract]
Contracts in progress
Schedule of Long-term Contracts or Programs in Progress [Table Text Block]
Schedule of Long-term Contracts or Programs in Progress [Table Text Block]
Property and Equipment
Property, Plant and Equipment Disclosure [Text Block]
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Customer concentration risk
Customer Concentration Risk [Member]
Customer by Type [Axis]
Customer by Type [Axis]
Customer by Type [Axis]
Customer by Type [Domain]
Customer by Type [Domain]
Customer by Type [Domain]
Federal Government
Customer Type, Federal [Member]
Customer Type, Federal [Member]
State Governments
Customer Type, State [Member]
Customer Type, State [Member]
Local Governments
Customer Type, Local [Member]
Customer Type, Local [Member]
Private Companies
Customer Type, Private [Member]
Customer Type, Private [Member]
Major Customers [Axis]
Name of Major Customer [Domain]
Private sector customer
Private Sector Customer [Member]
Private Sector Customer [Member]
US Army Corps of Engineers
U.S. Army Corps of Engineers [Member]
U.S. Army Corps of Engineers [Member]
Trade and contract retainage receivables
Foreign
Foreign [Member]
Foreign [Member]
Trade and retainage receivables
Trade Accounts Receivable and Contract Receivable Retainage, Net
Trade Accounts Receivable and Contract Receivable Retainage, Net
Concentration risk, percentage
Concentration Risk, Percentage
Contract revenues, percent
Contracts Revenue, Percent
Contracts Revenue, Percent
Schedule of earnings per share, basic and diluted
Schedule of Weighted Average Number of Shares [Table Text Block]
Change in fair value of cash flow hedge, net of tax
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Letter of Credit
Letter of Credit [Member]
Bridge Loan
Bridge Loan [Member]
Minimum additional borrowing amount
Line of Credit Facility, Minimum Additional Borrowing Amount
Line of Credit Facility, Minimum Additional Borrowing Amount
Amount over minimum additional borrowing amount, integral multiples
Line of Credit Facility, Amount Over Minimum Additional Borrowing Amount, Integral Multiples
Line of Credit Facility, Amount Over Minimum Additional Borrowing Amount, Integral Multiples
Line of credit facility, amount outstanding
Line of Credit Facility, Fair Value of Amount Outstanding
Letters of credit outstanding
Letters of Credit Outstanding, Amount
Remaining borrowing capacity
Line of Credit Facility, Remaining Borrowing Capacity
Repayments of debt
Repayments of Debt
Proceeds from lines of credit
Proceeds from Lines of Credit
Statement of Cash Flows [Abstract]
Acquisition of TAS and purchase price adjustment
Acquisition of Business in Alaska [Member]
Acquisition of Business in Alaska [Member]
Houston Industrial Tool Services, Inc.
Houston Industrial Tool Services, Inc. [Member]
Houston Industrial Tool Services, Inc. [Member]
Acquisition of business in Pacific Northwest
Acquisition of business in Pacific Northwest [Member]
Acquisition of business in Pacific Northwest [Member] Acquisition in February 2010 of business located in Pacific Northwest
Acquisition of TW LaQuay Dredging [Member]
Acquisition of TW LaQuay Dredging [Member]
Acquisition of TW LaQuay Dredging [Member] Acquisition of TW LaQuay dredging business in 2010
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net loss to net cash provided by operating activities
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization
Deferred financing cost amortization
Amortization of Financing Costs
Bad debt expense
Provision for Doubtful Accounts
Deferred income taxes
(Gain) loss on sale of property and equipment
Change in operating assets and liabilities, net of effects of acquisitions:
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Income tax receivable
Increase (Decrease) in Income Taxes Receivable
Inventory
Increase (Decrease) in Inventories
Accounts receivable, non-current
Increase (Decrease) in Long-term Receivables, Current
Prepaid expenses and other
Increase (Decrease) in Prepaid Expense and Other Assets
Costs and estimated earnings in excess of billings on uncompleted contracts
Increase Decrease in Costs in excess of billings
Increase Decrease in Costs in excess of billings
Accounts payable
Increase (Decrease) in Accounts Payable
Accrued liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Income tax payable
Increase (Decrease) in Income Taxes Payable
Billings in excess of costs and estimated earnings on uncompleted contracts
Increase (Decrease) in Billing in Excess of Cost of Earnings
Deferred revenue
Increase (Decrease) in Deferred Revenue
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows from investing activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Proceeds from sale of property and equipment
Proceeds from Sale of Property, Plant, and Equipment
Purchase of property and equipment
Payments to Acquire Property, Plant, and Equipment
Payments for acquisition of businesses
Payments to Acquire Businesses, Net of Cash Acquired
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows from financing activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Borrowings from Credit Facility
Payments made on borrowings from Credit Facility
Extinguishment of debt
Repayments of Long-term Debt
Loan costs from Credit Facility
Payments of Financing Costs
Exercise of stock options
Proceeds from Stock Options Exercised
Purchase of shares into treasury
Payments for Repurchase of Equity
Net cash (used in) provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Net change in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at beginning of year
Cash and cash equivalents at end of year
Supplemental disclosures of cash flow information, cash paid during the period for:
Supplemental Cash Flow Information [Abstract]
Interest
Interest Paid
Taxes, net of refunds
Income Taxes Paid, Net
Stock-Based Compensation
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Selected Quarterly Financial Data
Quarterly Financial Information [Text Block]
Restricted stock
Restricted Stock [Member]
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning nonvested shares (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Granted (in shares)
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Forfeited/repurchased shares (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Ending nonvested shares (in shares)
Weighted Average Fair Value Per Share
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Beginning nonvested shares (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Vested (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Forfeited/repurchased shares (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Ending nonvested shares (in dollars per share)
Defined Contribution Plan [Table]
Defined Contribution Plan [Table]
Contribution Plan, Employer Matching Contribution [Axis]
Contribution Plan, Employer Matching Contribution [Axis]
Contribution Plan, Employer Matching Contribution [Axis]
Contribution Plan, Employer Matching Contribution [Domain]
Contribution Plan, Employer Matching Contribution [Domain]
[Domain] for Contribution Plan, Employer Matching Contribution [Axis]
Range 1
Range One [Member]
Range One [Member]
Range 2
Range Two [Member]
Range Two [Member]
AGC Southwest Chapters 401(k) Retirement Plan
AGC Southwest Chapters 401(k) Retirement Plan [Member]
AGC Southwest Chapters 401(k) Retirement Plan [Member]
Defined Contribution Plan [Line Items]
Defined Contribution Plan [Line Items]
[Line Items] for Defined Contribution Plan [Table]
401 (k) Retirement Plan [Abstract]
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
Minimum service period for plan eligibility
Defined Contribution Plan, Requisite Service Period
Defined Contribution Plan, Requisite Service Period
Minimum allowable contribution to the plan by each employee, percent
Defined Contribution Plan, Annual Contribution By Employee, Minimum Allowable Amount, Percent
Defined Contribution Plan, Annual Contribution By Employee, Minimum Allowable Amount, Percent
Maximum allowable contribution to the plan by each employee, percent
Defined Contribution Plan, Annual Contribution By Employee, Maximum Allowable Amount, Percent
Defined Contribution Plan, Annual Contribution By Employee, Maximum Allowable Amount, Percent
Employer matching contribution, percent
Defined Contribution Plan, Employer Matching Contribution, Percent of Match
Employers matching contribution, vesting period
Defined Contribution Plan, Employers Matching Contribution, Vesting Period
Defined Contribution Plan, Employers Matching Contribution, Vesting Period
Company contributions to the plan
Defined Contribution Plan, Cost Recognized
Employer matching contribution, percent of employees' gross pay
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Employer discretionary contribution amount
Defined Contribution Plan, Employer Discretionary Contribution Amount
Summary of Significant Accounting Principles
Significant Accounting Policies [Text Block]
Schedule of Related Party Transactions, by Related Party [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
Affiliated Entity
Affiliated Entity [Member]
Related Party Transaction [Axis]
Related Party Transaction [Axis]
Related Party Transaction [Domain]
Related Party Transaction [Domain]
Lease Arrangement
Lease Arrangement [Member]
Lease Arrangement [Member]
Acquisition of Houston Industrial Tool Services, Inc.
Acquisition of Houston Industrial Tool Services, Inc. [Member]
Acquisition of Houston Industrial Tool Services, Inc. [Member]
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Operating leases, annual lease amount
Operating Leases, Annual Lease Amount
Operating Leases, Annual Lease Amount
Payroll expense related to subcontracted employees
Related Party Transaction, Expenses from Transactions with Related Party
Management services to TAS
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party
Costs incurred on uncompleted contracts
Inventory for Long-term Contracts or Programs, Costs Incurred on Uncompleted Contracts
Inventory for Long-term Contracts or Programs, Costs Incurred on Uncompleted Contracts
Estimated earnings
Inventory for Long-term Contracts or Programs, Estimated Earnings on Uncompleted Contracts
Inventory for Long-term Contracts or Programs, Estimated Earnings on Uncompleted Contracts
Costs incurred and estimated earnings on uncompleted contracts
Inventory for Long-term Contracts or Programs, Gross
Less: Billings to date
Billed Contracts Receivable
Costs and estimated earnings in excess of billings on uncompleted contracts, net
Costs in Excess of Billings on Uncompleted Contracts, Net
Costs in Excess of Billings on Uncompleted Contracts, Net
Billings in excess of costs and estimated earnings on uncompleted contracts
Costs and estimated earnings in excess of billings on completed contracts
Costs incurred on Completed Contracts
Costs incurred on Completed Contracts
Earnings (Loss) Per Share
Earnings Per Share [Text Block]
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory amount (computed at 35%)
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
State income tax, net of federal benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Permanent differences
Income Tax Reconciliation, Permanent Differences
Income Tax Reconciliation, Permanent Differences
Permanent differences, incentive stock options
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount
True up to prior year taxes
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount
Valuation allowance, current
Deferred Tax Assets, Valuation Allowance, Current
Consolidated effective tax rate
Effective Income Tax Rate Reconciliation, Percent
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Beginning balance, January 1
Additions
Goodwill, Acquired During Period
Ending balance
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Document Type
Document Type
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Voluntary Filers
Entity Current Reporting Status
Entity Current Reporting Status
Entity Public Float
Entity Public Float
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Automobiles and trucks
Building and improvements
Building and Building Improvements [Member]
Construction equipment
Construction Equipment [Member]
Construction Equipment [Member]
Dredges and dredging equipment
Marine Services Equipment [Member]
Office equipment
Office Equipment [Member]
Construction in progress
Construction in Progress [Member]
Land
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross
Property, Plant and Equipment, Gross
Less: accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Property, Pant and Equipment, Net Book Value of Depreciable Assets
Property, Pant and Equipment, Net Book Value of Depreciable Assets
Property, Pant and Equipment, Net Book Value of Depreciable Assets
Current assets:
Allowance for doubtful accounts
Allowance for Doubtful Accounts Receivable, Current
Stockholders' Equity:
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock, shares authorized
Preferred Stock, Shares Authorized
Preferred stock, shares issued
Preferred Stock, Shares Issued
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized
Common Stock, Shares Authorized
Common stock, shares issued
Common stock, shares outstanding
Common Stock, Shares, Outstanding
Treasury stock, shares
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Discount rate
Fair Value Inputs, Discount Rate
Percentage of fair value in excess of carrying amt
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount
Revenue growth rate implied in reporting units valuations, number of years projected
Fair Value Measurement, Assumptions Used to Calculate Reporting Unit Fair Value, Revenue Growth Rate, Period Evaluated
Fair Value Measurement, Assumptions Used to Calculate Reporting Unit Fair Value, Revenue Growth Rate, Period Evaluated
Schedule of Segment Reporting
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Domain]
Debt Instrument, Redemption, Period [Domain]
2017
Long-term Debt, Maturities, Repayments of Principal in Year Two
2018
Long-term Debt, Maturities, Repayments of Principal in Year Three
2019
Long-term Debt, Maturities, Repayments of Principal in Year Four
2020
Long-term Debt, Maturities, Repayments of Principal in Year Five
Schedule of quarterly financial information
Schedule of Quarterly Financial Information [Table Text Block]
Schedule of changes in goodwill
Schedule of Goodwill [Table Text Block]
Schedule of changes and amortization of finite-lived intangible assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Summary of Finite-lived Intangible Assets Amortization Expense
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Equity Award [Domain]
Stock Option
Equity Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Expected volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Expected term of options
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Schedule of Multiemployer Plans [Table]
Schedule of Multiemployer Plans [Table]
Multiemployer Plan Type [Axis]
Multiemployer Plan Type [Axis]
Multiemployer Plans Type [Domain]
Multiemployer Plans Type [Domain]
Multiemployer Plans, Pension
Multiemployer Plans, Pension [Member]
Collective Bargaining Arrangement [Axis]
Collective Bargaining Arrangement [Axis]
Collective Bargaining Arrangement [Domain]
Collective Bargaining Arrangement [Domain]
International Union of Operating Engineers - Employers Construction Industry Retirement Plan - Local 302 and 612 Trust Funds
International Union of Operating Engineers-Employers Construction Industry Retirement Plan [Member]
International Union of Operating Engineers-Employers Construction Industry Retirement Plan [Member]
Associated General Contractors of Washington Carpenter, Piledrivers, and Millwrights
Associated General Contractors of Washington Carpenter, Piledrivers, and Millwrights [Member]
Associated General Contractors of Washington Carpenter, Piledrivers, and Millwrights [Member]
Alaska Carpenters Trust Fund
Alaska Carpenters Trust Fund [Member]
Alaska Carpenters Trust Fund [Member]
Alaska Laborers Trust Fund
Alaska Laborers Trust Fund [Member]
Alaska Laborers Trust Fund [Member]
Multiemployer Plans [Line Items]
Multiemployer Plans [Line Items]
Certified Zone Status
Multiemployer Plans, Certified Zone Status
Contributions
Multiemployer Plan, Period Contributions
Expiration of Collective Bargaining Agreement
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date
Accrued Liabilities, Current [Abstract]
Accrued Liabilities, Current [Abstract]
Accrued salaries, wages and benefits
Employee-related Liabilities, Current
Property taxes
Accrual for Taxes Other than Income Taxes, Current
Sales tax
Sales and Excise Tax Payable
Interest
Interest Payable, Current
Payable to TAS Seller
Accrued Payments to Acquire Businesses
Accrued Payments to Acquire Businesses
Other accrued expenses
Other Accrued Liabilities, Current
Total accrued liabilities
Schedule of future minimum rental payments for operating leases
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Concentration of Risk and Enterprise Wide Disclosures
Concentration Risk Disclosure [Text Block]
Advertising Expense [Abstract]
Advertising Expense and Warranty Accrual [Abstract]
Advertising Expense and Warranty Accrual [Abstract]
Advertising expense
Advertising Expense
Segment Reporting
Segment Reporting Disclosure [Text Block]
Employee Benefits
Compensation and Employee Benefit Plans [Text Block]
Percentage off fair value in excess of carry amt
Depreciable lives of property and equipment
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning stock options outstanding (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Exercised (in shares)
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Ending stock options outstanding (in shares)
Weighted Average Exercise Price Per Share
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Beginning stock options outstanding (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted (in dollars per share)
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Forfeited (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Ending stock options outstanding (in dollars per share)
Vested and expected to vest at December 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Weighted Average Exercise Price Per Share (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Weighted Average Contractual Life
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
December 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Weighted Average Exercise Price Per Share (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Weighted Average Contractual Life
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Equipment improvement
Equipment Improvement [Member]
Equipment Improvement [Member]
Dry-docking capitalized costs
Dry-docking Capitalized Costs [Member]
Dry-docking Capitalized Costs [Member]
Change in Accounting Estimate by Type [Axis]
Change in Accounting Estimate by Type [Axis]
Change in Accounting Estimate, Type [Domain]
Change in Accounting Estimate, Type [Domain]
Diluted (in dollars per share)
LIBOR
London Interbank Offered Rate (LIBOR) [Member]
Quarterly principal payments
Debt Instrument, Periodic Payment, Principal
Repayments of Debt
Current portion of debt
Line of Credit, Current
Non-current portion of debt
Long-term Line of Credit, Noncurrent
Effective interest rate
Debt Instrument, Interest Rate, Effective Percentage
Finite-lived Intangible Assets, Gross [Roll Forward]
Finite-lived Intangible Assets, Gross [Roll Forward]
Finite-lived Intangible Assets, Gross [Roll Forward]
Intangible assets, January 1
Finite-Lived Intangible Assets, Gross
Additions
Finite-lived Intangible Assets Acquired
Total intangible assets, end of year
Accumulated Amortization [Roll Forward]
Accumulated Amortization [Roll Forward]
Accumulated Amortization [Roll Forward]
Accumulated amortization, January 1
Finite-Lived Intangible Assets, Accumulated Amortization
Current year amortization
Total accumulated amortization
Net intangible assets, end of year
Finite-Lived Intangible Assets, Net
Operating Segments
Operating Segments [Member]
Depreciation and amortization
Assets
2016
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months
2017
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2018
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2019
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2020
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Assets
Assets [Member]
Liability
Liability [Member]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurements, Recurring
Fair Value, Measurements, Recurring [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Fair Value, Inputs, Level 1
Fair Value, Inputs, Level 1 [Member]
Fair Value, Inputs, Level 2
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 3
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash surrender value of life insurance
Cash Surrender Value, Fair Value Disclosure
Derivatives, Fair Value, Net
Life Insurance, number of employees
Life Insurance, Corporate or Bank Owned, Number of Employees
Life Insurance, Corporate or Bank Owned, Number of Employees
Life Insurance, face amount
Life Insurance, Corporate or Bank Owned, Amount
Fair value of debt
Debt Instrument, Fair Value Disclosure
Contracts in Progress
Long-term Contracts or Programs Disclosure [Text Block]
Stock Repurchase Program [Abstract]
Stock Repurchase Program [Abstract]
Stock Repurchase Program [Abstract]
Stock repurchase program, authorized amount
Stock Repurchase Program, Authorized Amount
Stock repurchase program, expected duration
Stock Repurchase Program, Expected Duration
Stock Repurchase Program, Expected Duration
Stock repurchased during period, shares
Stock repurchased during period, average (USD per share)
Treasury Stock Acquired, Average Cost Per Share
Balance outstanding under revolver
balance outstanding under revolver
balance outstanding under revolver
Term loan amount outstanding
Line of Credit Facility, Revolving Credit Converted to Term Loan, Amount Outstanding
Line of Credit Facility, Revolving Credit Converted to Term Loan, Amount Outstanding
Extinguishment of debt