Lease Obligations	9 Months Ended
Lease Obligations	Sep. 30, 2013
Leases [Abstract]
Lease Obligations	Lease Obligations Capital Leases MasTec enters into agreements that expire on various dates, which provide financing for certain machinery and equipment. Assets held under capital leases, net of accumulated depreciation, totaled $142.2 million and $102.2 million as of September 30, 2013 and December 31, 2012, respectively. Operating Leases In the ordinary course of business, the Company enters into non-cancelable operating leases for certain of its facility, vehicle and equipment needs, including related party leases. Rent expense relating to operating leases, including short term rentals, reflected within continuing operations, was approximately $75.6 million and $69.4 million for the three month periods ended September 30, 2013 and 2012, respectively, and $176.0 million and $168.2 million for the nine month periods ended September 30, 2013 and 2012, respectively.

The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing.

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