ACQUISITIONS - Summary of Acquisitions Location, Services (Detail)	9 Months Ended
Sep. 30, 2018 Entity
Business Acquisition [Line Items]
Number of acquisitions	19
Regulated Waste
Business Acquisition [Line Items]
Number of acquisitions	2
Secure Information Destruction
Business Acquisition [Line Items]
Number of acquisitions	17
United States
Business Acquisition [Line Items]
Number of acquisitions	19
United States \| Regulated Waste
Business Acquisition [Line Items]
Number of acquisitions	2
United States \| Secure Information Destruction
Business Acquisition [Line Items]
Number of acquisitions	17

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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