CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents ($167,391 and $102,679 related to variable interest entities (“VIEs”))	$ 316,499	$ 202,197
Restricted cash	4,870	9,199
Restricted investments	85,075	84,355
Accounts receivable ($102,702 and $116,415 related to VIEs)	1,413,246	1,454,319
Retention receivable ($169,106 and $162,259 related to VIEs)	542,301	568,881
Costs and estimated earnings in excess of billings ($121,545 and $143,105 related to VIEs)	1,356,607	1,356,768
Other current assets ($42,356 and $43,718 related to VIEs)	216,400	186,773
Total current assets	3,934,998	3,862,492
PROPERTY AND EQUIPMENT (“P&E”), net of accumulated depreciation of $496,617 and $483,417 (net P&E of $4,595 and $2,203 related to VIEs)	425,966	429,645
GOODWILL	205,143	205,143
INTANGIBLE ASSETS, NET	79,563	85,068
OTHER ASSETS	146,488	142,550
TOTAL ASSETS	4,792,158	4,724,898
CURRENT LIABILITIES:
Current maturities of long-term debt	23,285	24,406
Accounts payable ($73,743 and $96,097 related to VIEs)	559,152	512,056
Retention payable ($38,461 and $37,007 related to VIEs)	228,690	268,945
Billings in excess of costs and estimated earnings ($390,885 and $355,270 related to VIEs)	844,618	761,689
Accrued expenses and other current liabilities ($10,088 and $8,566 related to VIEs)	199,412	210,017
Total current liabilities	1,855,157	1,777,113
LONG-TERM DEBT, less current maturities, net of unamortized discount and debt issuance costs totaling $16,350 and $17,109	979,769	969,248
DEFERRED INCOME TAXES	69,890	70,989
OTHER LONG-TERM LIABILITIES	240,821	233,828
TOTAL LIABILITIES	3,145,637	3,051,178
COMMITMENTS AND CONTINGENCIES (NOTE 10)
Stockholders' equity:
Preferred stock - authorized 1,000,000 shares ($1 par value), none issued	0	0
Common stock - authorized 112,500,000 shares ($1 par value), issued and outstanding 51,200,161 and 51,095,706 shares	51,200	51,096
Additional paid-in capital	1,134,688	1,133,150
Retained earnings	492,676	514,310
Accumulated other comprehensive loss	(46,745)	(43,635)
Total stockholders' equity	1,631,819	1,654,921
Noncontrolling interests	14,702	18,799
TOTAL EQUITY	1,646,521	1,673,720
TOTAL LIABILITIES AND EQUITY	$ 4,792,158	$ 4,724,898