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GOODWILL AND INTANGIBLE ASSETS - Schedule of Activity and Balances Related to Goodwill by Reporting Segment (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | $ 118,976 | $ 119,170
Acquisitions | 923 |
Other |  | (194)
Goodwill, ending balance | 119,899 | 118,976
Eastern |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 17,429 | 17,429
Acquisitions | 0 |
Other |  | 0
Goodwill, ending balance | 17,429 | 17,429
Western |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 87,503 | 87,697
Acquisitions | 923 |
Other |  | (194)
Goodwill, ending balance | 88,426 | 87,503
Recycling |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 12,315 | 12,315
Acquisitions | 0 |
Other |  | 0
Goodwill, ending balance | 12,315 | 12,315
Other |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 1,729 | 1,729
Acquisitions | 0 |
Other |  | 0
Goodwill, ending balance | $ 1,729 | $ 1,729

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease), classified as other, of an asset representing the future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Details
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