CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
REVENUE	$ 952,154	$ 1,207,595
COST OF OPERATIONS	(901,809)	(1,097,140)
GROSS PROFIT	50,345	110,455
General and administrative expenses	(60,252)	(60,751)
INCOME (LOSS) FROM CONSTRUCTION OPERATIONS	(9,907)	49,704
Other income, net	3,697	175
Interest expense	(16,492)	(17,810)
INCOME (LOSS) BEFORE INCOME TAXES	(22,702)	32,069
Income tax (expense) benefit	3,889	(6,964)
NET INCOME (LOSS)	(18,813)	25,105
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	2,821	9,071
NET INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (21,634)	$ 16,034
BASIC EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	$ (0.42)	$ 0.31
DILUTED EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	$ (0.42)	$ 0.31
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	51,107	50,913
DILUTED (in shares)	51,107	51,348