CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 199,421	$ (47,296)	$ 33,888
Other comprehensive (loss) income:
Foreign currency translation (losses) gains, net of tax	(2,949)	1,695	(3,089)
Unrealized gains (losses) on investment activity, net of tax	349	(3,737)	30,910
Comprehensive income (loss)	196,821	(49,338)	61,709
Comprehensive income attributable to non-controlling interests	36,633	2,653	534
Comprehensive income (loss) attributable to MasTec, Inc.	$ 160,188	$ (51,991)	$ 61,175