CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash and cash equivalents	$ 282,695	$ 259,351
Accounts receivable	1,140,592	1,171,085
Retention receivable	563,967	585,556
Costs and estimated earnings in excess of billings	1,299,786	1,377,528
Other current assets	132,321	179,215
Accumulated depreciation	510,604	505,512
Property and equipment, net	441,606	435,088
Accounts payable	471,938	495,345
Retention payable	245,972	246,562
Billings in excess of costs and estimated earnings	978,505	975,812
Accrued expenses and other current liabilities	171,604	179,523
Unamortized discount and debt issuance costs, non-current	$ 13,136	$ 13,980
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)	51,644,903	51,521,336
Common stock, shares outstanding (in shares)	51,644,903	51,521,336
VIEs
Cash and cash equivalents	$ 166,416	$ 168,408
Accounts receivable	69,197	54,040
Retention receivable	157,729	187,615
Costs and estimated earnings in excess of billings	83,546	83,911
Other current assets	29,553	33,340
Property and equipment, net	28,773	22,133
Accounts payable	33,540	36,484
Retention payable	44,481	44,859
Billings in excess of costs and estimated earnings	471,199	480,839
Accrued expenses and other current liabilities	$ 3,147	$ 5,082