Consolidated Statements of Equity (USD $)	Total	Restricted Stock [Member] Investor [Member] Contributed Shares [Member]	Common Stock [Member]	Common Stock [Member] Restricted Stock [Member] Investor [Member] Contributed Shares [Member]	Treasury Stock [Member]	Contributed Shares [Member] Restricted Stock [Member] Investor [Member]	Capital Surplus [Member]	Capital Surplus [Member] Restricted Stock [Member] Investor [Member] Contributed Shares [Member]	(Accumulated Deficit) Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	MasTec, Inc. [Member]	MasTec, Inc. [Member] Restricted Stock [Member] Investor [Member] Contributed Shares [Member]	Non-Controlling Interests [Member]
Beginning balance at Dec. 31, 2010	$ 653,162,000		$ 7,822,000		$ 0	$ 0	$ 663,927,000		$ (12,512,000)	$ (6,156,000)	$ 653,081,000		$ 81,000
Beginning balance, treasury shares at Dec. 31, 2010					0
Beginning balance, common shares outstanding at Dec. 31, 2010			78,215,189
Increase (Decrease) in Equity [Roll Forward]
Net income	105,972,000								106,001,000		106,001,000		(29,000)
Other comprehensive (loss) income	(1,790,000)									(1,790,000)	(1,790,000)
Issuance of common stock acquisition-related, shares			5,129,642
Issuance of common stock, acquisition-related	94,213,000		513,000				93,700,000				94,213,000
Senior convertible notes, conversion feature, net of tax	10,739,000						10,739,000				10,739,000
Non-cash stock-based compensation	3,573,000						3,573,000				3,573,000
Excess tax benefits, stock-based compensation	7,766,000						7,766,000				7,766,000
Stock options exercised, shares			1,132,396
Stock options exercised	11,722,000		113,000				11,609,000				11,722,000
Restricted share awards issued, shares			646,531
Restricted share awards issued	64,000		64,000								64,000
Other stock issuances, net, shares			38,769
Other stock issuances, net	786,000		4,000				782,000				786,000
Treasury stock acquired, at cost, shares	(4,600,000)				(4,593,663)
Treasury stock acquired, at cost	(75,000,000)				(75,000,000)						(75,000,000)
Ending balance at Dec. 31, 2011	811,207,000		8,516,000		(75,000,000)	0	792,096,000		93,489,000	(7,946,000)	811,155,000		52,000
Ending balance, treasury shares at Dec. 31, 2011					(4,593,663)
Ending balance, common shares outstanding at Dec. 31, 2011			85,162,527
Increase (Decrease) in Equity [Roll Forward]
Net income	107,416,000								107,426,000		107,426,000		(10,000)
Other comprehensive (loss) income	2,445,000									2,445,000	2,445,000
Non-cash stock-based compensation	4,433,000						4,433,000				4,433,000
Acquisition of non-controlling interest	4,661,000												4,661,000
Excess tax benefits, stock-based compensation	759,000						759,000				759,000
Stock options exercised, shares			391,949
Stock options exercised	3,718,000		40,000				3,678,000				3,718,000
Restricted share awards issued, shares			347,889
Restricted share awards issued	35,000		35,000								35,000
Other stock issuances, net, shares			13,187
Other stock issuances, net	2,201,000		1,000				2,200,000				2,201,000
Treasury stock acquired, at cost, shares	(4,900,000)				(4,873,623)
Treasury stock acquired, at cost	(75,000,000)				(75,000,000)						(75,000,000)
Ending balance at Dec. 31, 2012	861,875,000		8,592,000		(150,000,000)	0	803,166,000		200,915,000	(5,501,000)	857,172,000		4,703,000
Ending balance, treasury shares at Dec. 31, 2012	(9,467,286)				(9,467,286)
Ending balance, common shares outstanding at Dec. 31, 2012	85,915,552		85,915,552
Increase (Decrease) in Equity [Roll Forward]
Net income	141,216,000								140,950,000		140,950,000		266,000
Other comprehensive (loss) income	(7,785,000)									(7,785,000)	(7,785,000)
Non-cash stock-based compensation	12,944,000						12,944,000				12,944,000
Excess tax benefits, stock-based compensation	4,315,000						4,315,000				4,315,000
Stock options exercised, shares			513,254
Stock options exercised	3,867,000		51,000				3,816,000				3,867,000
Restricted share awards issued, shares			68,122
Restricted share awards issued	7,000		7,000								7,000
Other stock issuances, net, shares			428,444
Other stock issuances, net	4,619,000		42,000				4,577,000				4,619,000
Contributed shares, shares				(200,000)
Contributed shares		0		(20,000)		6,002,000		(5,982,000)				0
Ending balance at Dec. 31, 2013	$ 1,021,058,000		$ 8,672,000		$ (150,000,000)	$ 6,002,000	$ 822,836,000		$ 341,865,000	$ (13,286,000)	$ 1,016,089,000		$ 4,969,000
Ending balance, treasury shares at Dec. 31, 2013	(9,467,286)				(9,467,286)
Ending balance, common shares outstanding at Dec. 31, 2013	86,725,372		86,725,372