Condensed Unaudited Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Unaudited Consolidated Statements Of Operations [Abstract]
Revenue	$ 778,476	$ 618,492
Costs of revenue, excluding depreciation and amortization	684,657	528,553
Depreciation and amortization	20,954	15,109
General and administrative expenses	40,809	32,499
Interest expense, net	8,992	7,912
Other income, net	(454)	(165)
Income before provision for income taxes	23,518	34,584
Provision for income taxes	(9,348)	(13,488)
Net income	14,170	21,096
Net loss attributable to non-controlling interests	(2)	(10)
Net income attributable to MasTec, Inc.	$ 14,172	$ 21,106
Earnings per share (See Note 2 - Earnings Per Share):
Basic earnings per share	$ 0.18	$ 0.27
Basic weighted average common shares outstanding	80,615	78,426
Diluted earnings per share	$ 0.17	$ 0.26
Diluted weighted average common shares outstanding	83,906	83,633