Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	$ 1,283,911	$ 1,441,984
Net income (loss)	27,502	(48,929)
Other comprehensive income (loss)	(842)	1,880
Share-based compensation	1,503	1,395
Issuance of common stock, net	(1,440)	(123)
Contributions from noncontrolling interests		2,000
Distributions to noncontrolling interests	(7,400)	(8,500)
Balance at the end of the period	1,303,234	1,389,707
Common Stock
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	52,025	51,521
Issuance of common stock, net	259	124
Balance at the end of the period	52,284	51,645
Additional Paid-in Capital
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	1,146,204	1,140,933
Share-based compensation	1,503	1,395
Issuance of common stock, net	(1,699)	(247)
Balance at the end of the period	1,146,008	1,142,081
Retained Earnings
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	133,146	304,301
Net income (loss)	15,760	(49,196)
Balance at the end of the period	148,906	255,105
Accumulated Other Comprehensive Loss
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(39,787)	(47,037)
Other comprehensive income (loss)	(375)	1,727
Balance at the end of the period	(40,162)	(45,310)
Noncontrolling Interests
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(7,677)	(7,734)
Net income (loss)	11,742	267
Other comprehensive income (loss)	(467)	153
Contributions from noncontrolling interests		2,000
Distributions to noncontrolling interests	(7,400)	(8,500)
Balance at the end of the period	$ (3,802)	$ (13,814)