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, 2021			95,371,211
Beginning balance at Dec. 31, 2021	$ 2,543,861	$ 2,539,809	$ 9,537	$ (586,955)	$ 1,033,615	$ 2,162,388	$ (78,776)	$ 4,052
Beginning balance, treasury shares (in shares) at Dec. 31, 2021				(18,941,926)
Condensed Unaudited Consolidated Statements of Equity
Net (loss) income	(34,959)	(34,978)				(34,978)		19
Other comprehensive income (loss)	14,667	14,667					14,667
Non-cash stock-based compensation	6,336	6,336			6,336
Issuance of restricted shares, net (in shares)			165,010
Issuance of restricted shares, net	0	0	$ 17		(17)
Shares withheld for taxes, net of other stock issuances (in shares)			(48,204)
Shares withheld for taxes, net of other stock issuances	$ (4,037)	(4,037)	$ (5)		(4,032)
Acquisition of treasury stock, at cost (in shares)	(187,978)			(187,978)
Acquisition of treasury stock, at cost	$ (13,791)	(13,791)		$ (13,791)
Ending balance, common shares outstanding (in shares) at Mar. 31, 2022			95,488,017
Ending balance at Mar. 31, 2022	$ 2,512,077	2,508,006	$ 9,549	$ (600,746)	1,035,902	2,127,410	(64,109)	4,071
Ending balance, treasury shares (in shares) at Mar. 31, 2022				(19,129,904)
Beginning balance, common shares outstanding (in shares) at Dec. 31, 2022	98,615,105		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)			(19,933,055)
Condensed Unaudited Consolidated Statements of Equity
Net (loss) income	$ (80,546)	(80,540)				(80,540)		(6)
Other comprehensive income (loss)	(3,505)	(3,505)					(3,505)
Non-cash stock-based compensation	8,515	8,515			8,515
Issuance of shares in connection with acquisition (in shares)			2,235
Issuance of shares in connection with acquisition	206	206			206
Issuance of restricted shares, net (in shares)			174,833
Issuance of restricted shares, net	0	0	$ 17		(17)
Shares withheld for taxes, net of other stock issuances (in shares)			(117,176)
Shares withheld for taxes, net of other stock issuances	(8,225)	(8,225)	$ (12)		(8,213)
Purchase of non-controlling interests				120,000
Purchase of non-controlling interests	$ (10,000)	(7,476)		$ 3,997	(11,473)			(2,524)
Acquisition of treasury stock, at cost (in shares)	0
Ending balance, common shares outstanding (in shares) at Mar. 31, 2023	98,674,997		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)			(19,813,055)