SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Ownership interest percentage in subsidiaries	70.00%
Bank overdrafts	$ 0
Total interest cost incurred	28,300,000	$ 29,100,000	$ 31,000,000
Capitalized interest	2,000,000	2,300,000	1,900,000
Aggregate intangible asset amortization	9,200,000	10,500,000	11,200,000
Goodwill	102,300,000	102,300,000	102,300,000
Net cash provided by operations	111,200,000	129,100,000	40,400,000
Net cash used in financing activities	(84,700,000)	(131,600,000)	(12,900,000)
Accounting Standards Update 2016-09, Excess Tax Benefit Component \| New Accounting Pronouncement, Early Adoption, Effect
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deferred income tax assets, net	500,000
Net cash provided by operations		600,000	1,300,000
Net cash used in financing activities		600,000	1,300,000
Materials & Construction
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accounts receivable and contracts retention	8,200,000	7,300,000
Accounts and contracts payable	600,000	600,000
Goodwill	$ 93,600,000	93,600,000	93,600,000
Minimum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Terms of construction contracts	1 year
Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Terms of construction contracts	3 years
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of recorded loan	$ 515,100,000	587,000,000
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of recorded loan	529,300,000	597,000,000
City and County of Honolulu \| Customer Concentration Risk \| Materials & Construction
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Revenues	52,000,000	38,100,000	37,500,000
State of Hawaii \| Customer Concentration Risk \| Materials & Construction
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Revenues	$ 50,100,000	$ 80,800,000	$ 79,600,000
Investments in Majority-owned Subsidiaries \| GPRM Prestress, LLC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Ownership interest percentage in subsidiaries	51.00%
Investments in Majority-owned Subsidiaries \| GLP Alphalt, LLC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Ownership interest percentage in subsidiaries	70.00%

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Construction Contract, Term of Contract

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of interest capitalized during the period.

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Total interest costs incurred during the period and either capitalized or charged against earnings.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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