CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
REVENUE	$ 861,027	$ 1,219,243	$ 1,813,181	$ 2,426,838
COST OF OPERATIONS	(895,250)	(1,091,754)	(1,797,059)	(2,188,894)
GROSS PROFIT (LOSS)	(34,223)	127,489	16,122	237,944
General and administrative expenses	(56,331)	(58,736)	(116,583)	(119,487)
INCOME (LOSS) FROM CONSTRUCTION OPERATIONS	(90,554)	68,753	(100,461)	118,457
Other income, net	1,020	1,431	4,717	1,606
Interest expense	(16,204)	(17,938)	(32,696)	(35,748)
INCOME (LOSS) BEFORE INCOME TAXES	(105,738)	52,246	(128,440)	84,315
Income tax (expense) benefit	43,718	(10,635)	47,607	(17,599)
NET INCOME (LOSS)	(62,020)	41,611	(80,833)	66,716
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	983	10,446	3,804	19,517
NET INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (63,003)	$ 31,165	$ (84,637)	$ 47,199
BASIC EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	$ (1.23)	$ 0.61	$ (1.65)	$ 0.93
DILUTED EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	$ (1.23)	$ 0.61	$ (1.65)	$ 0.92
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	51,276	50,999	51,192	50,956
DILUTED (in shares)	51,276	51,375	51,192	51,362