Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net income (loss) attributable to MasTec:
Net income (loss) - basic	$ 9,903	$ (41,180)
Net income (loss) - diluted	$ 9,903	$ (41,180)
Weighted average shares outstanding:
Weighted average shares outstanding - basic (in shares)	78,192	77,942
Dilutive common stock equivalents (in shares)	860	0
Weighted average shares outstanding - diluted (in shares)	79,052	77,942
Anti-dilutive common stock (in shares)	55	727