Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	$ 1,441,984	$ 1,673,720
Net income (loss)	(48,929)	(18,813)
Other comprehensive income (loss)	1,880	(3,489)
Share-based compensation	1,395	1,724
Issuance of common stock, net	(123)	(82)
Contributions from noncontrolling interests	2,000	961
Distributions to noncontrolling interests	(8,500)	(7,500)
Balance at the end of the period	1,389,707	1,646,521
Common Stock
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	51,521	51,096
Issuance of common stock, net	124	104
Balance at the end of the period	51,645	51,200
Additional Paid-in Capital
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	1,140,933	1,133,150
Share-based compensation	1,395	1,724
Issuance of common stock, net	(247)	(186)
Balance at the end of the period	1,142,081	1,134,688
Retained Earnings
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	304,301	514,310
Net income (loss)	(49,196)	(21,634)
Balance at the end of the period	255,105	492,676
Accumulated Other Comprehensive Loss
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(47,037)	(43,635)
Other comprehensive income (loss)	1,727	(3,110)
Balance at the end of the period	(45,310)	(46,745)
Noncontrolling Interests
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(7,734)	18,799
Net income (loss)	267	2,821
Other comprehensive income (loss)	153	(379)
Contributions from noncontrolling interests	2,000	961
Distributions to noncontrolling interests	(8,500)	(7,500)
Balance at the end of the period	$ (13,814)	$ 14,702