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Segments and Related Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Segment Reporting [Abstract] |
Schedule of Financial Information by Reportable Segment | Summarized financial information for MasTec’s reportable segments is presented and reconciled to consolidated financial information for total MasTec in the following tables, including a reconciliation of consolidated income before income taxes to EBITDA, all of which are presented in millions. The tables below may contain slight summation differences due to rounding.
| For the Years Ended December 31,
Revenue: | 2020 |  | 2019 |  | 2018
Communications (a) | $ | 2,512.2 |  |  | $ | 2,618.8 |  |  | $ | 2,556.8 |
Clean Energy and Infrastructure | 1,526.9 |  |  | 1,034.3 |  |  | 665.0 |
Oil and Gas | 1,789.8 |  |  | 3,117.2 |  |  | 3,288.7 |
Electrical Transmission | 506.5 |  |  | 413.9 |  |  | 397.3 |
Other | 0.6 |  |  | 0.2 |  |  | 3.5 |
Eliminations | (15.0) |  |  | (1.2) |  |  | (1.9) |
Consolidated revenue | $ | 6,321.0 |  |  | $ | 7,183.2 |  |  | $ | 6,909.4 |
(a) Revenue generated primarily by utilities customers represented 15.6%, 15.0% and 14.9% of Communications segment revenue for the years ended December 31, 2020, 2019 and 2018, respectively.
| For the Years Ended December 31,
EBITDA: | 2020 |  | 2019 |  | 2018
Communications | $ | 270.1 |  |  | $ | 208.8 |  |  | $ | 290.4 |
Clean Energy and Infrastructure | 80.4 |  |  | 40.1 |  |  | 40.4 |
Oil and Gas | 510.9 |  |  | 634.2 |  |  | 451.6 |
Electrical Transmission | 14.9 |  |  | 29.5 |  |  | 10.5 |
Other | 30.7 |  |  | 26.5 |  |  | 24.4 |
Corporate | (124.5) |  |  | (115.7) |  |  | (156.4) |
Consolidated EBITDA | $ | 782.5 |  |  | $ | 823.4 |  |  | $ | 660.8 |
For the year ended December 31, 2020, Corporate EBITDA included $5.6 million of debt extinguishment losses. For the year ended December 31, 2019, Corporate EBITDA included $3.3 million of indefinite-lived pre-qualification intangible asset impairment charges. For the year ended December 31, 2018, Corporate EBITDA included $47.7 million of goodwill impairment charges and Other segment EBITDA included project gains of $1.0 million from a proportionately consolidated non-controlled Canadian joint venture, which is managed by a third party and for which the Company has minimal direct construction involvement.
| For the Years Ended December 31,
Depreciation and Amortization: | 2020 |  | 2019 |  | 2018
Communications | $ | 87.1 |  |  | $ | 65.0 |  |  | $ | 59.3 |
Clean Energy and Infrastructure | 18.2 |  |  | 14.1 |  |  | 13.7 |
Oil and Gas | 156.6 |  |  | 127.2 |  |  | 113.7 |
Electrical Transmission | 24.7 |  |  | 20.0 |  |  | 19.8 |
Other | 0.1 |  |  | 0.1 |  |  | 0.1 |
Corporate | 11.1 |  |  | 9.1 |  |  | 6.3 |
Consolidated depreciation and amortization | $ | 297.8 |  |  | $ | 235.5 |  |  | $ | 212.9 |
| As of December 31,
Assets: | 2020 |  | 2019 |  | 2018
Communications | $ | 1,941.9 |  |  | $ | 1,958.1 |  |  | $ | 1,461.7 |
Clean Energy and Infrastructure | 653.7 |  |  | 570.5 |  |  | 358.7 |
Oil and Gas | 1,631.1 |  |  | 1,762.4 |  |  | 1,965.3 |
Electrical Transmission | 541.6 |  |  | 463.9 |  |  | 423.9 |
Other | 191.8 |  |  | 192.2 |  |  | 193.9 |
Corporate | 267.7 |  |  | 49.9 |  |  | 36.5 |
Consolidated segment assets | $ | 5,227.8 |  |  | $ | 4,997.0 |  |  | $ | 4,440.0 |
| For the Years Ended December 31,
Capital Expenditures: | 2020 |  | 2019 |  | 2018
Communications | $ | 38.4 |  |  | $ | 36.0 |  |  | $ | 69.3 |
Clean Energy and Infrastructure | 14.0 |  |  | 12.7 |  |  | 6.5 |
Oil and Gas | 149.2 |  |  | 59.7 |  |  | 83.5 |
Electrical Transmission | 3.8 |  |  | 6.8 |  |  | 10.2 |
Other | 0.0 |  |  | 0.0 |  |  | 0.0 |
Corporate | 8.3 |  |  | 11.3 |  |  | 10.9 |
Consolidated capital expenditures | $ | 213.7 |  |  | $ | 126.5 |  |  | $ | 180.4 |
Reconciliation of Consolidated Income before Income Taxes to EBITDA |
| For the Years Ended December 31,
EBITDA Reconciliation: | 2020 |  | 2019 |  | 2018
Income before income taxes | $ | 425.2 |  |  | $ | 510.9 |  |  | $ | 365.3 |
Plus: |  |  |  |  |
Interest expense, net | 59.6 |  |  | 77.0 |  |  | 82.6 |
Depreciation | 258.8 |  |  | 212.5 |  |  | 192.3 |
Amortization | 38.9 |  |  | 23.0 |  |  | 20.6 |
Consolidated EBITDA | $ | 782.5 |  |  | $ | 823.4 |  |  | $ | 660.8 |
Schedule of Significant Customers, Revenue Concentration Information | Revenue concentration information for significant customers as a percentage of total consolidated revenue was as follows:
| For the Years Ended December 31,
| 2020 |  | 2019 |  | 2018
Customer: |  |  |  |  |
AT&T (including DIRECTV®) (a) | 18% |  | 20% |  | 23%
Energy Transfer affiliates (b) | 5% |  | 8% |  | 14%
Equitrans Midstream Corporation (c) | 3% |  | 11% |  | 20%
(a) The Company’s relationship with AT&T is based upon multiple separate master service and other service agreements, including for installation and maintenance services, as well as construction/installation contracts for AT&T’s: (i) wireless; (ii) wireline/fiber; and (iii) various install-to-the-home businesses, including DIRECTV®. Revenue from AT&T is included within the Communications segment. (b) The Company's relationship with Energy Transfer affiliates is based upon various construction contracts for pipeline activities with Energy Transfer Operating, L.P., and its subsidiaries and affiliates, for which the related revenue is included within the Oil and Gas segment. (c) The Company's relationship with Equitrans Midstream Corporation and its affiliates is based upon various construction contracts for pipeline activities, for which the related revenue is included within the Oil and Gas segment.

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- Definition Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 + Details
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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 + Details
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