Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Capital Surplus	Retained Earnings	Accumulated Other Comprehensive Loss	Total MasTec, Inc. Shareholders’ Equity	Non-Controlling Interests
Beginning balance, common shares outstanding (in shares) at Dec. 31, 2018		91,327,009
Beginning balance at Dec. 31, 2018	$ 1,392,024	$ 9,133	$ (466,125)	$ 789,009	$ 1,118,375	$ (60,494)	$ 1,389,898	$ 2,126
Beginning balance, treasury shares (in shares) at Dec. 31, 2018			(15,329,817)
Consolidated Statements of Equity
Net income (loss)	394,096				392,334		392,334	1,762
Other comprehensive income (loss)	(15,212)					(15,212)	(15,212)
Non-cash stock-based compensation	16,447			16,447			16,447
Issuance of restricted shares, net (in shares)		464,970
Issuance of restricted shares, net	0	$ 46		(46)
Other stock issuances (shares withheld for taxes), net (in shares)		117,451
Other stock issuances (shares withheld for taxes), net	4,355	$ 12		4,343			4,355
Acquisition of treasury stock, at cost (in shares)			(15,100)
Acquisition of treasury stock, at cost	(602)		$ (602)				(602)
Contributions from non-controlling interests	583							583
Ending balance, common shares outstanding (in shares) at Dec. 31, 2019		91,909,430
Ending balance at Dec. 31, 2019	1,791,691	$ 9,191	$ (466,727)	809,753	1,510,709	(75,706)	1,787,220	4,471
Ending balance, treasury shares (in shares) at Dec. 31, 2019			(15,344,917)
Consolidated Statements of Equity
Net income (loss)	322,699				322,848		322,848	(149)
Other comprehensive income (loss)	(15,738)					(15,738)	(15,738)
Non-cash stock-based compensation	21,875			21,875			21,875
Issuance of restricted shares, net (in shares)		993,893
Issuance of restricted shares, net	0	$ 99		(99)
Other stock issuances (shares withheld for taxes), net (in shares)		204,117
Other stock issuances (shares withheld for taxes), net	$ 5,945	$ 21		5,924			5,945
Acquisition of treasury stock, at cost (in shares)	(3,600,000)		(3,597,009)
Acquisition of treasury stock, at cost	$ (120,228)		$ (120,228)				(120,228)
Distributions to non-controlling interests	$ (719)							(719)
Ending balance, common shares outstanding (in shares) at Dec. 31, 2020	93,107,440	93,107,440
Ending balance at Dec. 31, 2020	$ 2,005,525	$ 9,311	$ (586,955)	837,453	1,833,557	(91,444)	2,001,922	3,603
Ending balance, treasury shares (in shares) at Dec. 31, 2020	(18,941,926)		(18,941,926)
Consolidated Statements of Equity
Net income (loss)	$ 330,729				328,831		328,831	1,898
Other comprehensive income (loss)	12,668					12,668	12,668
Non-cash stock-based compensation	24,805			24,805			24,805
Issuance of shares for acquisition (in shares)		1,975,232
Issuance of shares for acquisition	181,682	$ 198		181,484			181,682
Issuance of restricted shares, net (in shares)		305,882
Issuance of restricted shares, net	0	$ 31		(31)
Other stock issuances (shares withheld for taxes), net (in shares)		(17,343)
Other stock issuances (shares withheld for taxes), net	$ (4,670)	$ (3)		(4,667)			(4,670)
Acquisition of treasury stock, at cost (in shares)	0
Distributions to non-controlling interests	$ (76)							(76)
Purchase of non-controlling interests	$ (6,802)			(5,429)			(5,429)	(1,373)
Ending balance, common shares outstanding (in shares) at Dec. 31, 2021	95,371,211	95,371,211
Ending balance at Dec. 31, 2021	$ 2,543,861	$ 9,537	$ (586,955)	$ 1,033,615	$ 2,162,388	$ (78,776)	$ 2,539,809	$ 4,052
Ending balance, treasury shares (in shares) at Dec. 31, 2021	(18,941,926)		(18,941,926)