Condensed Unaudited Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Income Statement [Abstract]
Revenue	$ 964,029		$ 918,648
Costs of revenue, excluding depreciation and amortization	841,054		791,499
Depreciation and amortization	33,494		31,753
General and administrative expenses	53,327		48,885
Interest expense, net	12,003		10,045
Loss on extinguishment of debt	0		5,624
Other income, net	(1,955)		(826)
Income from continuing operations before income taxes	26,106		31,668
Provision for income taxes	(9,916)		(12,348)
Net income from continuing operations	16,190		19,320
Discontinued operations:
Net loss from discontinued operations (See Note 4)	(122)		(947)
Net income	16,068		18,373
Net income attributable to non-controlling interests	45		3
Net income attributable to MasTec, Inc.	$ 16,023		$ 18,370
Basic earnings (loss) per share:
Continuing operations	$ 0.21		$ 0.25
Discontinued operations	$ 0.00		$ (0.01)
Total basic earnings per share	$ 0.21	[1]	$ 0.24	[1]
Basic weighted average common shares outstanding	77,345		76,608
Diluted earnings (loss) per share:
Continuing operations	$ 0.19		$ 0.23
Discontinued operations	$ 0.00		$ (0.01)
Total diluted earnings per share	$ 0.19	[1]	$ 0.22	[1]
Diluted weighted average common shares outstanding	86,622		84,094

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