SEGMENT REPORTING - Summary of Revenues Details by Service Line (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	$ 917,733	$ 891,621	$ 1,810,132	$ 1,765,802
Regulated waste and compliance services
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	512,321	523,303	1,023,498	1,029,884
Secure Information Destruction Services
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	212,409	190,534	416,484	375,164
Communication and related services
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	102,868	82,549	196,384	170,498
Manufacturing and Industrial Services
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	$ 90,135	$ 95,235	$ 173,766	$ 190,256