Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 21,236	$ 14,184
Accounts receivable—net	110,940	130,777
Contract revenues in excess of billings	74,915	81,195
Inventories	35,053	35,963
Prepaid expenses and other current assets	76,107	67,614
Total current assets	318,251	329,733
PROPERTY AND EQUIPMENT—Net	416,484	430,210
GOODWILL AND OTHER INTANGIBLE ASSETS—Net	85,544	86,004
INVENTORIES—Noncurrent	46,867	41,646
INVESTMENTS IN JOINT VENTURES	5,293	3,761
OTHER	7,470	6,770
TOTAL	879,909	898,124
CURRENT LIABILITIES:
Accounts payable	97,088	118,846
Accrued expenses	62,179	72,277
Billings in excess of contract revenues	4,971	7,061
Revolving credit facility	45,000
Current portion of long term debt	10,469	7,506
Total current liabilities	219,707	205,690
7 3/8% SENIOR NOTES	272,498	271,998
REVOLVING CREDIT FACILITY	45,000	20,000
NOTES PAYABLE	47,821	53,792
DEFERRED INCOME TAXES	70,979	74,006
OTHER	19,669	20,465
Total liabilities	630,674	645,951
COMMITMENTS AND CONTINGENCIES (Note 9)
EQUITY:
Common stock—$.0001 par value; 90,000 authorized, 61,026 and 60,709 shares issued; 60,748 and 60,431 shares outstanding at June 30, 2016 and December 31, 2015, respectively.	6	6
Treasury stock, at cost	(1,433)	(1,433)
Additional paid-in capital	285,506	283,247
Accumulated deficit	(33,418)	(27,664)
Accumulated other comprehensive loss	(1,426)	(1,983)
Total equity	249,235	252,173
TOTAL	$ 879,909	$ 898,124