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	(63,792)	(64,998)				(64,998)		1,206
Other comprehensive income (loss)	2,078	2,078					2,078
Non-cash stock-based compensation	17,090	17,090			17,090
Issuance of restricted shares, net (in shares)			172,589
Issuance of restricted shares, net	0	0	$ 17		(17)
Shares withheld for taxes, net of other stock issuances (in shares)			(117,557)
Shares withheld for taxes, net of other stock issuances	(5,374)	(5,374)	$ (12)		(5,362)
Issuance of shares in connection with acquisition (in shares)			4,112
Issuance of shares in connection with acquisition	403	403			403
Acquisition-related assumption of non-controlling interest	6,828							6,828
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 Jun. 30, 2023			98,674,249
Ending balance at Jun. 30, 2023	2,688,420	2,679,052	$ 9,867	$ (659,913)	1,247,231	2,130,744	(48,877)	9,368
Ending balance, treasury shares (in shares) at Jun. 30, 2023				(19,813,055)
Beginning balance, common shares outstanding (in shares) at Mar. 31, 2023			98,674,997
Beginning 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
Beginning balance, treasury shares (in shares) at Mar. 31, 2023				(19,813,055)
Condensed Unaudited Consolidated Statements of Equity
Net (loss) income	16,754	15,542				15,542		1,212
Other comprehensive income (loss)	5,583	5,583					5,583
Non-cash stock-based compensation	8,575	8,575			8,575
Forfeiture of restricted shares, net (in shares)			(2,244)
Shares withheld for taxes, net of other stock issuances (in shares)			(381)
Shares withheld for taxes, net of other stock issuances	2,851	2,851			2,851
Issuance of shares in connection with acquisition (in shares)			1,877
Issuance of shares in connection with acquisition	197	197			197
Acquisition-related assumption of non-controlling interest	6,828							6,828
Ending balance, common shares outstanding (in shares) at Jun. 30, 2023			98,674,249
Ending balance at Jun. 30, 2023	$ 2,688,420	2,679,052	$ 9,867	$ (659,913)	1,247,231	2,130,744	(48,877)	9,368
Ending balance, treasury shares (in shares) at Jun. 30, 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)			(19,813,055)
Condensed Unaudited Consolidated Statements of Equity
Net (loss) income	$ 9,309	(7,192)				(7,192)		16,501
Other comprehensive income (loss)	1,468	1,468					1,468
Non-cash stock-based compensation	16,698	16,698			16,698
Forfeiture of restricted shares, net (in shares)			(16,611)
Forfeiture of restricted shares, net	0	0	$ (2)		2
Shares withheld for taxes, net of other stock issuances (in shares)			(31,972)
Shares withheld for taxes, net of other stock issuances	(2,762)	(2,762)	$ (3)		(2,759)
Distributions to non-controlling interests	(12,632)							(12,632)
Acquisition-related assumption of non-controlling interest	$ 765							765
Ending balance, common shares outstanding (in shares) at Jun. 30, 2024	99,044,551		99,044,551
Ending balance at Jun. 30, 2024	$ 2,734,107	2,714,364	$ 9,904	$ (659,913)	1,277,301	2,138,601	(51,529)	19,743
Ending balance, treasury shares (in shares) at Jun. 30, 2024	(19,813,055)			(19,813,055)
Beginning balance, common shares outstanding (in shares) at Mar. 31, 2024			99,272,155
Beginning 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
Beginning balance, treasury shares (in shares) at Mar. 31, 2024				(19,813,055)
Condensed Unaudited Consolidated Statements of Equity
Net (loss) income	43,768	33,988				33,988		9,780
Other comprehensive income (loss)	(875)	(875)					(875)
Non-cash stock-based compensation	7,025	7,025			7,025
Forfeiture of restricted shares, net (in shares)			(227,257)
Forfeiture of restricted shares, net	0	0	$ (23)		23
Shares withheld for taxes, net of other stock issuances (in shares)			(347)
Shares withheld for taxes, net of other stock issuances	(38)	(38)			(38)
Distributions to non-controlling interests	$ (5,797)							(5,797)
Ending balance, common shares outstanding (in shares) at Jun. 30, 2024	99,044,551		99,044,551
Ending balance at Jun. 30, 2024	$ 2,734,107	$ 2,714,364	$ 9,904	$ (659,913)	$ 1,277,301	$ 2,138,601	$ (51,529)	$ 19,743
Ending balance, treasury shares (in shares) at Jun. 30, 2024	(19,813,055)			(19,813,055)