Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net loss attributable to Tutor Perini Corporation	$ (49,196)	$ (21,634)
Weighted-average common shares outstanding, basic (in shares)	51,551	51,107
Effect of dilutive RSUs and stock options (in shares)	0	0
Weighted-average common shares outstanding, diluted (in shares)	51,551	51,107
Net loss attributable to Tutor Perini Corporation per common share: Basic (in dollars per share)	$ (0.95)	$ (0.42)
Net loss attributable to Tutor Perini Corporation per common share: Diluted (in dollars per share)	$ (0.95)	$ (0.42)
Anti-dilutive securities not included above (in shares)	2,857	3,431