Condensed Unaudited Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Revenue	$ 918,648		$ 738,257
Costs of revenue, excluding depreciation and amortization	791,499		652,247
Depreciation and amortization	31,753		20,954
General and administrative expenses	48,885		37,304
Interest expense (income), net	10,045		8,951
Loss on extinguishment of debt	5,624		0
Other (income) expense, net	(826)		(461)
Income (loss) from continuing operations before provision for income taxes	31,668		19,499
(Provision for) benefit from income taxes	(12,348)		(7,804)
Income (loss) from continuing operations before non-controlling interests	19,320		11,695
Discontinued operations (See Note 4 - Discontinued Operations):
(Loss) income from discontinued operations, net of tax	(947)		2,475
Net income (loss)	18,373		14,170
Net income (loss) attributable to non-controlling interests	3		(2)
Net income attributable to MasTec, Inc.	18,370		14,172
Basic earnings (loss) per share:
Continuing operations, basic earnings per share	$ 0.25		$ 0.15
Discontinued operations, basic earnings (loss) per share	$ (0.01)		$ 0.03
Total basic earnings per share	$ 0.24	[1]	$ 0.18	[1]
Basic weighted average common shares outstanding	76,608		80,615
Diluted earnings (loss) per share:
Continuing operations, diluted earnings per share	$ 0.23		$ 0.14
Discontinued operations, diluted earnings (loss) per share	$ (0.01)		$ 0.03
Total diluted earnings per share	$ 0.22	[1]	$ 0.17	[1]
Diluted weighted average common shares outstanding	84,094		83,901
Segment, Continuing Operations [Member]
Revenue	918,600		738,300
Depreciation and amortization	31,753		20,717
Interest expense (income), net	$ 10,000		$ 9,000

[1] Earnings per share tables may contain summation differences due to rounding.