CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 11,995,934	$ 9,778,038	$ 7,951,781
Costs of revenue, excluding depreciation and amortization	10,613,762	8,586,333	6,805,735
Depreciation	433,929	371,240	345,612
Amortization of intangible assets	169,233	135,908	77,214
General and administrative expenses	698,899	559,437	306,970
Interest expense, net	234,405	112,255	53,413
Equity in earnings of unconsolidated affiliates, net	(30,697)	(28,836)	(33,830)
Other income, net	(40,893)	(1,358)	(33,408)
(Loss) income before income taxes	(82,704)	43,059	430,075
Benefit from (provision for) income taxes	35,408	(9,171)	(99,346)
Net (loss) income	(47,296)	33,888	330,729
Net income attributable to non-controlling interests	2,653	534	1,898
Net (loss) income attributable to MasTec, Inc.	$ (49,949)	$ 33,354	$ 328,831
(Loss) earnings per share (Note 2):
Basic (loss) earnings per share (in dollars per share)	$ (0.64)	$ 0.45	$ 4.54
Basic weighted average common shares outstanding (in shares)	77,535	74,917	72,499
Diluted (loss) earnings per share (in dollars per share)	$ (0.64)	$ 0.42	$ 4.45
Diluted weighted average common shares outstanding (in shares)	77,535	76,185	73,941