Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Revenue	$ 7,951,781	$ 6,320,975	$ 7,183,188
Costs of revenue, excluding depreciation and amortization	6,805,735	5,270,879	6,070,244
Depreciation	345,612	258,841	212,485
Amortization of intangible assets	77,214	38,910	22,997
Goodwill and intangible asset impairment	0	0	3,319
General and administrative expenses	306,970	302,981	286,361
Interest expense, net	53,413	59,629	77,026
Equity in earnings of unconsolidated affiliates	(33,830)	(29,738)	(27,367)
Loss on extinguishment of debt	0	5,569	0
Other (income) expense, net	(33,408)	(11,260)	27,184
Income before income taxes	430,075	425,164	510,939
Provision for income taxes	(99,346)	(102,465)	(116,843)
Net income	330,729	322,699	394,096
Net income (loss) attributable to non-controlling interests	1,898	(149)	1,762
Net income attributable to MasTec, Inc.	$ 328,831	$ 322,848	$ 392,334
Earnings per share (Note 2):
Basic earnings per share (in dollars per share)	$ 4.54	$ 4.43	$ 5.22
Basic weighted average common shares outstanding (in shares)	72,499	72,799	75,185
Diluted earnings per share (in dollars per share)	$ 4.45	$ 4.38	$ 5.17
Diluted weighted average common shares outstanding (in shares)	73,941	73,715	75,846