CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
REVENUE	$ 1,070,926	$ 1,178,222	$ 2,884,107	$ 3,605,060
COST OF OPERATIONS	(1,020,586)	(1,064,245)	(2,817,645)	(3,253,139)
GROSS PROFIT	50,340	113,977	66,462	351,921
General and administrative expenses	(57,232)	(61,884)	(173,815)	(181,371)
INCOME (LOSS) FROM CONSTRUCTION OPERATIONS	(6,892)	52,093	(107,353)	170,550
Other income (expense)	397	(464)	5,114	1,142
Interest expense	(17,015)	(16,694)	(49,711)	(52,442)
INCOME (LOSS) BEFORE INCOME TAXES	(23,510)	34,935	(151,950)	119,250
Income tax (expense) benefit	(560)	(8,694)	47,047	(26,293)
NET INCOME (LOSS)	(24,070)	26,241	(104,903)	92,957
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	8,385	10,847	12,189	30,364
NET INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (32,455)	$ 15,394	$ (117,092)	$ 62,593
BASIC EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	$ (0.63)	$ 0.30	$ (2.28)	$ 1.23
DILUTED EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	$ (0.63)	$ 0.30	$ (2.28)	$ 1.22
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	51,404	51,072	51,263	50,995
DILUTED (in shares)	51,404	51,366	51,263	51,364