CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
REVENUE	$ 1,060,705	$ 1,070,926	$ 2,858,756	$ 2,884,107
COST OF OPERATIONS	(1,009,792)	(1,020,586)	(2,767,051)	(2,817,645)
GROSS PROFIT	50,913	50,340	91,705	66,462
General and administrative expenses	(63,479)	(57,232)	(183,828)	(173,815)
LOSS FROM CONSTRUCTION OPERATIONS	(12,566)	(6,892)	(92,123)	(107,353)
Other income, net	2,967	397	12,442	5,114
Interest expense	(20,313)	(17,015)	(63,842)	(49,711)
LOSS BEFORE INCOME TAXES	(29,912)	(23,510)	(143,523)	(151,950)
Income tax (expense) benefit	4,086	(560)	52,004	47,047
NET LOSS	(25,826)	(24,070)	(91,519)	(104,903)
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	11,070	8,385	32,107	12,189
NET LOSS ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (36,896)	$ (32,455)	$ (123,626)	$ (117,092)
BASIC LOSS PER COMMON SHARE (in dollars per share)	$ (0.71)	$ (0.63)	$ (2.39)	$ (2.28)
DILUTED LOSS PER COMMON SHARE (in dollars per share)	$ (0.71)	$ (0.63)	$ (2.39)	$ (2.28)
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	51,994	51,404	51,784	51,263
DILUTED (in shares)	51,994	51,404	51,784	51,263