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Revenue | 9 Months Ended
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Sep. 30, 2019
Revenue [Abstract] |
Revenue | 5.REVENUE The Company’s operations primarily consist of providing non-hazardous waste collection, transfer, disposal and recycling services, non-hazardous exploration and production (“E&P”) waste treatment, recovery and disposal services and intermodal services. The following table disaggregates the Company’s revenues by service line for the periods indicated: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three Months Ended September 30, | ​ | ​ | Nine Months Ended September 30,
​ |  | 2019 |  | 2018 |  | 2019 |  | 2018
Commercial |  | $ | 408,415 | ​ | $ | 369,543 | ​ | $ | 1,186,565 | ​ | $ | 1,080,261
Residential | ​ | ​ | 355,574 | ​ | ​ | 300,026 | ​ | ​ | 1,024,105 | ​ | ​ | 881,927
Industrial and construction roll off | ​ | ​ | 226,801 | ​ | ​ | 202,130 | ​ | ​ | 629,597 | ​ | ​ | 573,877
Total collection | ​ | ​ | 990,790 | ​ | ​ | 871,699 | ​ | ​ | 2,840,267 | ​ | ​ | 2,536,065
Landfill | ​ | ​ | 310,633 | ​ | ​ | 285,945 | ​ | ​ | 852,073 | ​ | ​ | 790,056
Transfer | ​ | ​ | 209,585 | ​ | ​ | 187,961 | ​ | ​ | 575,337 | ​ | ​ | 495,317
Recycling | ​ | ​ | 14,142 | ​ | ​ | 23,371 | ​ | ​ | 50,676 | ​ | ​ | 69,559
E&P | ​ | ​ | 70,874 | ​ | ​ | 68,049 | ​ | ​ | 205,743 | ​ | ​ | 189,071
Intermodal and other | ​ | ​ | 26,520 | ​ | ​ | 34,261 | ​ | ​ | 90,491 | ​ | ​ | 105,588
Intercompany | ​ | ​ | (210,100) | ​ | ​ | (190,176) | ​ | ​ | (587,868) | ​ | ​ | (524,447)
Total |  | $ | 1,412,444 | ​ | $ | 1,281,110 | ​ | $ | 4,026,719 | ​ | $ | 3,661,209
​ The factors that impact the timing and amount of revenue recognized for each service line may vary based on the nature of the service performed. Generally, the Company recognizes revenue at the time it performs a service. In the event that the Company bills for services in advance of performance, it recognizes deferred revenue for the amount billed and subsequently recognizes revenue at the time the service is provided. Substantially all of the deferred revenue recorded as of June 30, 2019 was recognized as revenue during the three months ended September 30, 2019 when the service was performed. See Note 11 for additional information regarding revenue by reportable segment. Contract Acquisition Costs The incremental direct costs of obtaining a contract, which consist of sales incentives, are recognized as Other assets in the Company’s Condensed Consolidated Balance Sheet, and are amortized to Selling, general and administrative expense over the estimated life of the relevant customer relationship, which ranges from one to five years. The Company recognizes the incremental costs of obtaining a contract as an expense when incurred if the amortization period of the asset that the entity would have recognized is one year or less. The Company had approximately $16,900 of deferred sales incentives at both September 30, 2019 and December 31, 2018.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 + Details
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