Earnings Per Share - Schedule of Earnings Per Share Information (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income attributable to MasTec:
Net income - basic	$ 33,354	$ 328,831	$ 322,848
Fair value gain (loss) related to resolved contingent payments	1,682	0	0
Net income -diluted	$ 31,672	$ 328,831	$ 322,848
Weighted average shares outstanding:
Weighted average shares outstanding - basic (in shares)	74,917	72,499	72,799
Dilutive common stock equivalents (in shares)	1,268	1,442	916
Weighted average shares outstanding - diluted (in shares)	76,185	73,941	73,715