CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Cash and cash equivalents	$ 267,072	$ 380,564
Accounts receivable	1,087,369	1,054,014
Retention receivable	546,668	580,926
Costs and estimated earnings in excess of billings	1,160,710	1,143,846
Other current assets	187,822	217,601
Accumulated depreciation	548,937	534,171
Property and equipment, net	434,371	441,291
Accounts payable	622,776	466,545
Retention payable	223,962	223,138
Billings in excess of costs and estimated earnings	987,447	1,103,530
Accrued expenses and other current liabilities	207,877	214,309
Unamortized discount and debt issuance costs, non-current	$ 31,387	$ 11,000
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares issued (in shares)	0	0
Common stock, shares authorized (in shares)	112,500,000	112,500,000
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares issued (in shares)	52,389,430	52,025,497
Common stock, shares outstanding (in shares)	52,389,430	52,025,497
VIEs
Cash and cash equivalents	$ 156,912	$ 173,118
Accounts receivable	60,049	84,014
Retention receivable	157,536	161,187
Costs and estimated earnings in excess of billings	87,833	58,089
Other current assets	18,918	26,725
Property and equipment, net	29,449	35,135
Accounts payable	28,980	24,160
Retention payable	18,444	22,841
Billings in excess of costs and estimated earnings	394,866	439,759
Accrued expenses and other current liabilities	$ 10,620	$ 18,206