Related Party Transactions	12 Months Ended
Dec. 31, 2013
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions MasTec purchases, rents and leases equipment used in its business from a number of different vendors on a non-exclusive basis, including Cross Country Pipeline Supply, Inc. ("CCP"), in which MasTec invested $15 million for a 14.85% ownership interest effective November 8, 2013. Juan Carlos Mas, who is the brother of Jorge Mas, Chairman of MasTec's Board of Directors, and Jose Mas, MasTec's Chief Executive Officer, serves as the chairman of CCP. In addition, an entity owned by the Mas family, including Jorge and Jose Mas, is a minority shareholder of CCP. MasTec paid CCP approximately $1.3 million for equipment rentals, leases and servicing from the date of the Company's investment in CCP through December 31, 2013. MasTec leases employees to a customer in which Jorge Mas and Jose Mas own a minority interest. For the years ended December 31, 2013, 2012 and 2011, MasTec charged to the customer approximately $0.6 million, $0.5 million and $0.5 million, respectively. As of December 31, 2013 and 2012, receivables of $0.1 million and $0.9 million, respectively, attributable to this arrangement were outstanding. The Company also provides satellite communication services to this customer. For the years ended December 31, 2013, 2012 and 2011, revenues relating to this customer were approximately $1.3 million, $1.2 million and $1.1 million, respectively. As of December 31, 2013 and 2012, outstanding receivables from this arrangement totaled approximately $0.4 million and $1.2 million, respectively. The Company charters an aircraft from a third party that leases two of its aircraft from entities in which Jorge Mas and Jose Mas have an ownership interest. MasTec made no payments in connection with this arrangement for the year ended December 31, 2013. For the years ended December 31, 2012 and 2011, MasTec paid this unrelated chartering company approximately $2,000 and $66,000, respectively. MasTec leases a property located in Florida from Irma S. Mas, the mother of Jorge Mas and Jose Mas. For the years ended December 31, 2013, 2012 and 2011, the Company paid lease payments of approximately $52,000, $44,000 and $48,000, respectively, in connection with this property. Split Dollar and Deferred Bonus Agreements On October 16, 2013, Jorge Mas, the Company and Jose Ramon Mas and Juan Carlos Mas, as trustees of the Jorge Mas Irrevocable Trust, dated June 1, 2012 (the “trust”) entered into a split dollar life insurance agreement that replaces a prior split dollar agreement with Jorge Mas. Under the split dollar agreement, MasTec is the sole owner of each of the policies subject to the agreement. The Company will make the premium payments under each of such policies. Upon the death of Jorge Mas or the survivor of Jorge Mas and his wife (collectively, the “insureds”) under the applicable policy, MasTec is entitled to receive a portion of the death benefit under such policy equal to the greater of (i) all premiums paid by the Company on such policy and (ii) the then cash value of such policy (excluding surrender charges or other similar charges or reductions) immediately before the triggering death. The balance of the death benefit is payable to the trust or other beneficiary designated by the trustees. In the event of the Company’s bankruptcy or dissolution, the trust shall have the assignable option to purchase any or all of the policies subject to the split dollar agreement from the Company. The purchase price for each policy shall be the greater of (x) all premiums paid by the Company on such policy or (y) the then cash value of such policy (excluding surrender charges or other similar charges or reductions). The total maximum face amount of the insurance for all policies subject to the split dollar agreement was capped at $200 million. The Company is designated as the named fiduciary under the split dollar agreement, and the policy may not be surrendered without the express written consent of the trust. The Company paid approximately $1.2 million, $0.3 million, and $0.3 million, respectively, in connection with the split dollar agreements for Jorge Mas for the years ended December 31, 2013, 2012 and 2011. Life insurance assets associated with the split dollar agreement for Jorge Mas are based on the value of premiums paid for the associated policy. MasTec also has split dollar and deferred bonus agreements with Jose Mas. The split dollar agreement provides that one or more life insurance policies may be subject to the agreement. At this time, however, the only policy subject to the agreement is the one acquired pursuant to the original agreement, which is in an aggregate face amount of $11 million. MasTec is the sole owner and beneficiary of any policy subject to the agreement, and upon the death of the insured, MasTec is entitled to receive a portion of the death benefit equal to the greater of (i) the total premiums paid by MasTec on such policy, or (ii) the then cash value of such policy immediately before the death of the insured, excluding surrender charges. The split dollar policy may not be surrendered without the express written consent of Jose Mas. Upon termination of the agreement, Jose Mas has an option to purchase each policy, subject to the agreement for a purchase price equal to the greater of the amounts referenced above. MasTec will make the premium payments until the agreement is terminated, which occurs upon any of the following events: (i) bankruptcy or dissolution of MasTec, or (ii) a change in control of MasTec. The amount of deferred bonus that is payable upon termination of the split dollar agreement, which is triggered upon a change in control of MasTec, is equal to the sum of the following amounts, determined with respect to each policy subject to the split dollar agreement: the greater of (i) the total premiums paid by MasTec under the terms of such policy, or (ii) the then cash value of such policy immediately prior to the change in control, excluding surrender charges. For the years ended December 31, 2013, 2012 and 2011, MasTec did not make any payments in connection with the split dollar agreement for Jose Mas. The Company adjusts the value of life insurance assets associated with the split dollar agreements for Jose Mas each period based on their current cash surrender values. As of December 31, 2013 and 2012, life insurance assets associated with the split dollar agreements for Jorge and Jose Mas, which are included within other long-term assets in the consolidated balance sheets, totaled $10.2 million and $8.7 million, respectively.

Related Party Transactions

MasTec purchases, rents and leases equipment used in its business from a number of different vendors on a non-exclusive basis, including Cross Country Pipeline Supply, Inc. ("CCP"), in which MasTec invested $15 million for a 14.85% ownership interest effective November 8, 2013. Juan Carlos Mas, who is the brother of Jorge Mas, Chairman of MasTec's Board of Directors, and Jose Mas, MasTec's Chief Executive Officer, serves as the chairman of CCP. In addition, an entity owned by the Mas family, including Jorge and Jose Mas, is a minority shareholder of CCP. MasTec paid CCP approximately $1.3 million for equipment rentals, leases and servicing from the date of the Company's investment in CCP through December 31, 2013.

MasTec leases employees to a customer in which Jorge Mas and Jose Mas own a minority interest. For the years ended December 31, 2013, 2012 and 2011, MasTec charged to the customer approximately $0.6 million, $0.5 million and $0.5 million, respectively. As of December 31, 2013 and 2012, receivables of $0.1 million and $0.9 million, respectively, attributable to this arrangement were outstanding. The Company also provides satellite communication services to this customer. For the years ended December 31, 2013, 2012 and 2011, revenues relating to this customer were approximately $1.3 million, $1.2 million and $1.1 million, respectively. As of December 31, 2013 and 2012, outstanding receivables from this arrangement totaled approximately $0.4 million and $1.2 million, respectively.

The Company charters an aircraft from a third party that leases two of its aircraft from entities in which Jorge Mas and Jose Mas have an ownership interest. MasTec made no payments in connection with this arrangement for the year ended December 31, 2013. For the years ended December 31, 2012 and 2011, MasTec paid this unrelated chartering company approximately $2,000 and $66,000, respectively.

MasTec leases a property located in Florida from Irma S. Mas, the mother of Jorge Mas and Jose Mas. For the years ended December 31, 2013, 2012 and 2011, the Company paid lease payments of approximately $52,000, $44,000 and $48,000, respectively, in connection with this property.

Split Dollar and Deferred Bonus Agreements

On October 16, 2013, Jorge Mas, the Company and Jose Ramon Mas and Juan Carlos Mas, as trustees of the Jorge Mas Irrevocable Trust, dated June 1, 2012 (the “trust”) entered into a split dollar life insurance agreement that replaces a prior split dollar agreement with Jorge Mas. Under the split dollar agreement, MasTec is the sole owner of each of the policies subject to the agreement. The Company will make the premium payments under each of such policies. Upon the death of Jorge Mas or the survivor of Jorge Mas and his wife (collectively, the “insureds”) under the applicable policy, MasTec is entitled to receive a portion of the death benefit under such policy equal to the greater of (i) all premiums paid by the Company on such policy and (ii) the then cash value of such policy (excluding surrender charges or other similar charges or reductions) immediately before the triggering death. The balance of the death benefit is payable to the trust or other beneficiary designated by the trustees. In the event of the Company’s bankruptcy or dissolution, the trust shall have the assignable option to purchase any or all of the policies subject to the split dollar agreement from the Company. The purchase price for each policy shall be the greater of (x) all premiums paid by the Company on such policy or (y) the then cash value of such policy (excluding surrender charges or other similar charges or reductions). The total maximum face amount of the insurance for all policies subject to the split dollar agreement was capped at $200 million. The Company is designated as the named fiduciary under the split dollar agreement, and the policy may not be surrendered without the express written consent of the trust. The Company paid approximately $1.2 million, $0.3 million, and $0.3 million, respectively, in connection with the split dollar agreements for Jorge Mas for the years ended December 31, 2013, 2012 and 2011. Life insurance assets associated with the split dollar agreement for Jorge Mas are based on the value of premiums paid for the associated policy.

MasTec also has split dollar and deferred bonus agreements with Jose Mas. The split dollar agreement provides that one or more life insurance policies may be subject to the agreement. At this time, however, the only policy subject to the agreement is the one acquired pursuant to the original agreement, which is in an aggregate face amount of $11 million. MasTec is the sole owner and beneficiary of any policy subject to the agreement, and upon the death of the insured, MasTec is entitled to receive a portion of the death benefit equal to the greater of (i) the total premiums paid by MasTec on such policy, or (ii) the then cash value of such policy immediately before the death of the insured, excluding surrender charges. The split dollar policy may not be surrendered without the express written consent of Jose Mas. Upon termination of the agreement, Jose Mas has an option to purchase each policy, subject to the agreement for a purchase price equal to the greater of the amounts referenced above. MasTec will make the premium payments until the agreement is terminated, which occurs upon any of the following events: (i) bankruptcy or dissolution of MasTec, or (ii) a change in control of MasTec. The amount of deferred bonus that is payable upon termination of the split dollar agreement, which is triggered upon a change in control of MasTec, is equal to the sum of the following amounts, determined with respect to each policy subject to the split dollar agreement: the greater of (i) the total premiums paid by MasTec under the terms of such policy, or (ii) the then cash value of such policy immediately prior to the change in control, excluding surrender charges. For the years ended December 31, 2013, 2012 and 2011, MasTec did not make any payments in connection with the split dollar agreement for Jose Mas. The Company adjusts the value of life insurance assets associated with the split dollar agreements for Jose Mas each period based on their current cash surrender values.

As of December 31, 2013 and 2012, life insurance assets associated with the split dollar agreements for Jorge and Jose Mas, which are included within other long-term assets in the consolidated balance sheets, totaled $10.2 million and $8.7 million, respectively.