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Basis of Presentation (Policies)
3 Months Ended
Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Consolidation
The Company’s condensed consolidated financial statements include its wholly-owned subsidiaries and their respective subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates and Assumptions
In conformity with accounting principles generally accepted in the United States of America, the Company uses estimates and assumptions that affect the amounts reported in these condensed consolidated financial statements and accompanying notes. The Company must make these estimates and assumptions because certain information that it uses is dependent on future events, cannot be calculated with a high degree of precision from data available or simply cannot be readily calculated based on generally accepted methodologies. In preparing the Company's financial statements, the more subjective areas that deal with the greatest amount of uncertainty relate to: accounting for long-lived assets, including recoverability; landfill development costs; final capping, closure and post-closure costs; valuation allowances for accounts receivable and deferred tax assets; liabilities for potential litigation, claims and assessments; liabilities for environmental remediation; stock compensation; accounting for goodwill and intangible asset impairments; deferred taxes; uncertain tax positions; self-insurance reserves; and estimates of the fair value of assets acquired and liabilities assumed in any acquisition. Actual results could differ materially from the estimates and assumptions that the Company uses in preparation of its financial statements.
Recently Adopted Accounting Standards
Recently Adopted Accounting Standards

In June 2016, the FASB issued ASU 2016-13 associated with the measurement of credit losses on financial instruments. The amended guidance replaces the previous incurred loss impairment methodology of recognizing credit losses when a loss is probable, with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to assess credit loss estimates. The amended guidance was effective for the Company on January 1, 2020. Based on the amended guidance, the Company estimates credit losses for uncollectible accounts based on an evaluation of the aged accounts receivable and the likelihood of collection of the receivable based on historical collection data adjusted for forward-looking economic conditions. The Company's adoption of this guidance on January 1, 2020 did not have a material impact on its consolidated financial statements.