Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 1,775,424	$ 1,416,604
Costs of revenue, excluding depreciation and amortization	1,513,859	1,226,297
Depreciation	79,264	53,089
Amortization of intangible assets	11,247	7,391
General and administrative expenses	73,108	85,514
Interest expense, net	12,459	17,004
Equity in earnings of unconsolidated affiliates	(7,346)	(7,834)
Other income, net	(2,596)	(1,342)
Income before income taxes	95,429	36,485
Provision for income taxes	(29,317)	(423)
Net income	66,112	36,062
Net income (loss) attributable to non-controlling interests	463	(168)
Net income attributable to MasTec, Inc.	$ 65,649	$ 36,230
Earnings per share (Note 2):
Basic earnings per share (in dollars per share)	$ 0.91	$ 0.48
Basic weighted average common shares outstanding	72,439	74,738
Diluted earnings per share (in dollars per share)	$ 0.89	$ 0.48
Diluted weighted average common shares outstanding	73,846	75,413