CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ (62,020)	$ 41,611	$ (80,833)	$ 66,716
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Defined benefit pension plan adjustments	457	491	915	983
Foreign currency translation adjustments	(1,390)	400	(1,133)	772
Unrealized gain (loss) in fair value of investments	(2,058)	219	(6,262)	(964)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(2,991)	1,110	(6,480)	791
COMPREHENSIVE INCOME (LOSS)	(65,011)	42,721	(87,313)	67,507
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	210	10,726	2,652	20,093
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (65,221)	$ 31,995	$ (89,965)	$ 47,414