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Segment Reporting (Total Reported Revenues by Service Line) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | $ 1,206,478 | $ 1,084,922 | $ 3,473,313 | $ 2,327,241
Percentage of reported revenue |  | 100.00% | 100.00% | 100.00% | 100.00%
Solid Waste Collection [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | $ 812,860 | $ 757,809 | $ 2,373,746 | $ 1,614,256
Percentage of reported revenue |  | 67.40% | 69.90% | 68.30% | 69.40%
Solid Waste Disposal and Transfer [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | $ 259,484 | $ 233,539 | $ 730,306 | $ 497,620
Percentage of reported revenue |  | 21.50% | 21.50% | 21.00% | 21.40%
Solid Waste Recycling [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | $ 41,569 | $ 29,615 | $ 124,216 | $ 56,322
Percentage of reported revenue |  | 3.50% | 2.70% | 3.60% | 2.40%
E&P Waste Treatment, Recovery and Disposal [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | $ 54,715 | $ 30,065 | $ 138,741 | $ 88,031
Percentage of reported revenue |  | 4.50% | 2.80% | 4.00% | 3.80%
Intermodal and Other [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | $ 37,850 | $ 33,894 | $ 106,304 | $ 71,012
Percentage of reported revenue |  | 3.10% | 3.10% | 3.10% | 3.00%
Intercompany Revenue [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues | [1] | $ (165,512) | $ (153,323) | $ (483,998) | $ (327,050)
Intercompany Revenue [Member] | Solid Waste Collection [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | (2,484) | (2,472) | (7,075) | (5,571)
Intercompany Revenue [Member] | Solid Waste Disposal and Transfer [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | (157,280) | (144,459) | (459,659) | (307,308)
Intercompany Revenue [Member] | Solid Waste Recycling [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | (2,295) | (2,523) | (7,229) | (4,554)
Intercompany Revenue [Member] | E&P Waste Treatment, Recovery and Disposal [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | (3,082) | (3,608) | (8,921) | (9,228)
Intercompany Revenue [Member] | Intermodal and Other [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | (371) | (261) | (1,114) | (389)
Reportable Segments [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | 1,371,990 | 1,238,245 | 3,957,311 | 2,654,291
Reportable Segments [Member] | Solid Waste Collection [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | 815,344 | 760,281 | 2,380,821 | 1,619,827
Reportable Segments [Member] | Solid Waste Disposal and Transfer [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | 416,764 | 377,998 | 1,189,965 | 804,928
Reportable Segments [Member] | Solid Waste Recycling [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | 43,864 | 32,138 | 131,445 | 60,876
Reportable Segments [Member] | E&P Waste Treatment, Recovery and Disposal [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | 57,797 | 33,673 | 147,662 | 97,259
Reportable Segments [Member] | Intermodal and Other [Member] |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |
Revenues |  | $ 38,221 | $ 34,155 | $ 107,418 | $ 71,401
[1] | Intercompany revenues reflect each segment's total intercompany sales, including intercompany sales within a segment and between segments. Transactions within and between segments are generally made on a basis intended to reflect the market value of the service.

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