Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Total MasTec, Inc. Shareholders’ Equity	Common Stock	Treasury Stock	Capital Surplus	Retained Earnings	Accumulated Other Comprehensive Loss	Non-Controlling Interests
Beginning balance, common shares outstanding (in shares) at Dec. 31, 2023			99,093,134
Beginning balance at Dec. 31, 2023	$ 2,721,261	$ 2,706,152	$ 9,909	$ (659,913)	$ 1,263,360	$ 2,145,793	$ (52,997)	$ 15,109
Beginning balance, treasury shares (in shares) at Dec. 31, 2023				(19,813,055)
Condensed Unaudited Consolidated Statements of Equity
Net (loss) income	(34,459)	(41,180)				(41,180)		6,721
Other comprehensive (loss) income	2,343	2,343					2,343
Non-cash stock-based compensation	9,673	9,673			9,673
Issuance of restricted shares, net (in shares)			210,646
Issuance of restricted shares, net	0	0	$ 21		(21)
Shares withheld for taxes, net of other stock issuances (in shares)			(31,625)
Shares withheld for taxes, net of other stock issuances	$ (2,724)	(2,724)	$ (3)		(2,721)
Acquisition of treasury stock, at cost (in shares)	0
Distributions to non-controlling interests, net	$ (6,835)							(6,835)
Non-controlling interests assumed related to acquisitions	765							765
Ending balance, common shares outstanding (in shares) at Mar. 31, 2024			99,272,155
Ending balance at Mar. 31, 2024	$ 2,690,024	2,674,264	$ 9,927	$ (659,913)	1,270,291	2,104,613	(50,654)	15,760
Ending balance, treasury shares (in shares) at Mar. 31, 2024				(19,813,055)
Beginning balance, common shares outstanding (in shares) at Dec. 31, 2024	99,029,011		99,029,011
Beginning balance at Dec. 31, 2024	$ 2,987,343	2,911,857	$ 9,903	$ (656,807)	1,291,027	2,308,581	(40,847)	75,486
Beginning balance, treasury shares (in shares) at Dec. 31, 2024	(19,719,796)			(19,719,796)
Condensed Unaudited Consolidated Statements of Equity
Net (loss) income	$ 12,327	9,903				9,903		2,424
Other comprehensive (loss) income	(3,056)	(3,056)					(3,056)
Non-cash stock-based compensation	6,943	6,943			6,943
Issuance of restricted shares, net (in shares)			334,619
Issuance of restricted shares, net	0	0	$ 33		(33)
Shares withheld for taxes, net of other stock issuances (in shares)			(38,368)
Shares withheld for taxes, net of other stock issuances	$ (4,233)	(4,233)	$ (4)		(4,229)
Acquisition of treasury stock, at cost (in shares)	(332,565)			(332,565)
Acquisition of treasury stock, at cost	$ (37,073)	(37,073)		$ (37,073)
Distributions to non-controlling interests, net	$ (6,992)							(6,992)
Ending balance, common shares outstanding (in shares) at Mar. 31, 2025	99,325,262		99,325,262
Ending balance at Mar. 31, 2025	$ 2,955,259	$ 2,884,341	$ 9,932	$ (693,880)	$ 1,293,708	$ 2,318,484	$ (43,903)	$ 70,918
Ending balance, treasury shares (in shares) at Mar. 31, 2025	(20,052,361)			(20,052,361)