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, 2022			98,615,105
Beginning balance at Dec. 31, 2022	$ 2,741,187	$ 2,737,329	$ 9,862	$ (663,910)	$ 1,246,590	$ 2,195,742	$ (50,955)	$ 3,858
Beginning balance, treasury shares (in shares) at Dec. 31, 2022				(19,933,055)
Condensed Unaudited Consolidated Statements of Equity
Net (loss) income	(80,546)	(80,540)				(80,540)		(6)
Other comprehensive income	(3,505)	(3,505)					(3,505)
Non-cash stock-based compensation	8,515	8,515			8,515
Issuance of restricted shares, net (in shares)			174,833
Issuance of restricted shares, net	0		$ 17		(17)
Other stock issuances, net of shares withheld for taxes (in shares)			(117,176)
Shares withheld for taxes, net of other stock issuances	(8,225)	(8,225)	$ (12)		(8,213)
Issuance of shares in connection with acquisition (in shares)			2,235
Issuance of shares in connection with acquisition	206	206	$ 0		206
Purchase of non-controlling interests (in shares)				120,000
Purchase of non-controlling interests	(10,000)	(7,476)		$ 3,997	(11,473)			(2,524)
Ending balance, common shares outstanding (in shares) at Mar. 31, 2023			98,674,997
Ending balance at Mar. 31, 2023	$ 2,647,632	2,646,304	$ 9,867	$ (659,913)	1,235,608	2,115,202	(54,460)	1,328
Ending balance, treasury shares (in shares) at Mar. 31, 2023				(19,813,055)
Beginning balance, common shares outstanding (in shares) at Dec. 31, 2023	99,093,134		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 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)
Other stock issuances, net of shares withheld for taxes (in shares)			(31,625)
Shares withheld for taxes, net of other stock issuances	(2,724)	(2,724)	$ (3)		(2,721)
Distributions to non-controlling interests	(6,835)							(6,835)
Acquisition-related assumption of non-controlling interest	$ 765							765
Ending balance, common shares outstanding (in shares) at Mar. 31, 2024	99,272,155		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)			(19,813,055)