Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 16,255	$ 75,765	$ (18,704)	$ 141,877
Other comprehensive income (loss):
Foreign currency translation (losses) gains, net of tax	(1,743)	843	(830)	1,214
Unrealized gains (losses) on investment activity, net of tax	7,843	(3,465)	21,597	10,374
Comprehensive income	22,355	73,143	2,063	153,465
Comprehensive income attributable to non-controlling interests	43	314	62	777
Comprehensive income attributable to MasTec, Inc.	$ 22,312	$ 72,829	$ 2,001	$ 152,688