Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenue	$ 3,252,427	$ 3,257,077	$ 8,900,362	$ 8,715,851
Costs of revenue, excluding depreciation and amortization	2,789,274	2,857,118	7,709,393	7,701,392
Depreciation	80,193	115,033	289,769	325,318
Amortization of intangible assets	34,368	42,266	101,669	126,252
General and administrative expenses	168,874	180,640	501,491	520,709
Interest expense, net	47,048	62,556	149,678	174,664
Equity in earnings of unconsolidated affiliates, net	(7,042)	(6,787)	(22,153)	(23,434)
Loss on extinguishment of debt	0	0	11,344	0
Other expense (income), net	2,754	(16,623)	4,639	(26,332)
Income (loss) before income taxes	136,958	22,874	154,532	(82,718)
(Provision for) benefit from income taxes	(31,548)	(7,569)	(39,813)	34,231
Net income (loss)	105,410	15,305	114,719	(48,487)
Net income attributable to non-controlling interests	10,170	1,009	26,671	2,215
Net income (loss) attributable to MasTec, Inc.	$ 95,240	$ 14,296	$ 88,048	$ (50,702)
Earnings (loss) per share (Note 2):
Basic earrings (loss) per share (in dollars per share)	$ 1.22	$ 0.18	$ 1.13	$ (0.65)
Basic weighted average common shares outstanding (in shares)	78,044	77,640	78,004	77,418
Diluted earnings (loss) per share (in dollars per share)	$ 1.21	$ 0.18	$ 1.12	$ (0.65)
Diluted weighted average common shares outstanding (in shares)	78,913	78,455	78,801	77,418