Condensed Unaudited Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (2,881)	$ (6,388)
Other comprehensive income (loss) (Note 11):
Foreign currency translation gains (losses), net of tax	5,624	(22,028)
Unrealized losses on equity method investment activity, net of tax	(8,010)	0
Comprehensive loss	(5,267)	(28,416)
Comprehensive loss attributable to non-controlling interests	(189)	(125)
Comprehensive loss attributable to MasTec, Inc.	$ (5,078)	$ (28,291)