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Acquisitions (Summary of Consideration Transferred to Acquire Businesses and Amounts of Identifiable Assets Acquired, Liabilities Assumed and Noncontrolling Interests) (Detail) - USD ($) $ in Thousands |  | 9 Months Ended
--- | --- | ---
Jun. 02, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Fair value of consideration transferred: |  |  |
Cash |  | $ 394,002 |
Notes issued to sellers |  | 13,460 |
Fair value of operations exchanged |  | 81,097 |
Consideration transferred |  | 545,517 |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Accounts receivable |  | 19,312 |
Prepaid expenses and other current assets |  | 4,336 |
Property and equipment |  | 167,065 |
Indefinite-lived intangibles |  | 5,830 |
Other assets |  | 3,052 |
Deferred revenue |  | (9,657) |
Other long-term liabilities |  | (1,080) |
Deferred income taxes |  | (50,283) |
Total identifiable net assets |  | 236,486 |
Goodwill |  | 309,031 | $ 2,931,223
Accounts Payable and Accrued Liabilities [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Accounts payable and accrued liabilities |  | (12,022) |
Debt [Member] |  |  |
Fair value of consideration transferred: |  |  |
Liabilities incurred |  | 56,958 |
Contingent Consideration [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Other long-term liabilities |  | (35) |
Other Acquisition [Member] |  |  |
Fair value of consideration transferred: |  |  |
Cash |  |  | 13,703
Consideration transferred |  |  | 13,703
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Accounts receivable |  |  | 521
Prepaid expenses and other current assets |  |  | 477
Property and equipment |  |  | 4,397
Other assets |  |  | 261
Deferred revenue |  |  | (659)
Total identifiable net assets |  |  | 8,987
Goodwill |  |  | 4,716
Other Acquisition [Member] | Accounts Payable and Accrued Liabilities [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Accounts payable and accrued liabilities |  |  | (744)
Other Acquisition [Member] | Contingent Consideration [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Other long-term liabilities |  |  | (345)
Progressive Waste Solutions Ltd. [Member] |  |  |
Fair value of consideration transferred: |  |  |
Shares issued |  | 3,503,162 |
Less: cash acquired |  | (65,768) |
Consideration transferred |  | 5,232,436 |
Net fair value of consideration transferred |  | 5,166,668 |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Accounts receivable |  | 231,709 |
Prepaid expenses and other current assets |  | 28,623 |
Property and equipment |  | 2,063,011 |
Other assets |  | 4,491 |
Deferred revenue |  | (35,635) |
Other long-term liabilities |  | (185,774) |
Deferred income taxes |  | (329,552) |
Total identifiable net assets |  | 2,143,083 |
Goodwill |  | 3,023,585 |
Progressive Waste Solutions Ltd. [Member] | Restricted Assets [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Other assets |  | 16,551 |
Progressive Waste Solutions Ltd. [Member] | Accounts Payable and Accrued Liabilities [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Accounts payable and accrued liabilities |  | (264,992) |
Progressive Waste Solutions Ltd. [Member] | Debt [Member] |  |  |
Fair value of consideration transferred: |  |  |
Liabilities incurred | $ 1,729,274 | 1,729,274 |
Progressive Waste Solutions Ltd. [Member] | Contingent Consideration [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Other long-term liabilities |  | (19,412) |
Contracts [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Intangibles |  | 54,674 |
Contracts [Member] | Progressive Waste Solutions Ltd. [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Intangibles |  | 223,885 |
Customer Lists [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Intangibles |  | 28,033 |
Customer Lists [Member] | Other Acquisition [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Intangibles |  |  | $ 5,079
Customer Lists [Member] | Progressive Waste Solutions Ltd. [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Intangibles |  | 191,679 |
Other Intangibles [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Intangibles |  | 27,261 |
Other Intangibles [Member] | Progressive Waste Solutions Ltd. [Member] |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed associated with businesses acquired: |  |  |
Intangibles |  | $ 218,499 |

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- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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