CONSOLIDATED BALANCE SHEETS CONSOLIDATED BALANCE SHEET (PARENTHETICALS - Assets and Liabilities) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Cash and cash equivalents	$ 189,326	$ 252,836
Costs and estimated earnings in excess of billings	73,102	59,070
Property and equipment, net	406,650	385,129
Accounts payable	199,029	157,571
Billings in excess of costs and estimated earnings	97,522	92,515
Accrued expenses and other current liabilities	218,587	200,935
Consolidated Construction Joint Venture [Member] | Joint Venture Consolidated [Member]
Cash and cash equivalents	73,115	46,210
Receivables, net	52,613	45,734
Costs and estimated earnings in excess of billings	5,046	826
Costs in Excess of Billings	7,500	4,037
Property and equipment, net	20,500	5,378
Accounts payable	26,419	11,909
Billings in excess of costs and estimated earnings	33,704	15,768
Accrued expenses and other current liabilities	$ 1,544	$ 1,171