SEGMENT REPORTING - Summary of Revenues Details by Service Line (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	$ 882,774	$ 890,144	$ 2,692,906	$ 2,655,946
Regulated waste and compliance services
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	502,358	520,390	1,525,856	1,550,273
Secure Information Destruction Services
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	204,726	187,090	621,210	562,254
Communication and related services
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	89,049	87,486	285,433	257,984
Manufacturing and Industrial Services
Entity Wide Information Revenue From External Customer [Line Items]
Revenues	$ 86,641	$ 95,178	$ 260,407	$ 285,435