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SUBSEQUENT EVENTS	12 Months Ended
SUBSEQUENT EVENTS	Dec. 31, 2017
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On February 23, 2018, the Company completed the acquisition of the U.S. Industrial Cleaning Division of Veolia Environmental Services North America LLC for a purchase price of approximately $120.0 million, subject to customary closing adjustments. Due to the timing of the acquisition, preliminary opening balance sheet amounts and purchase accounting adjustments are still being prepared. The acquisition will provide significant scale and industrial services capabilities while increasing the size of the Company's existing U.S. Industrial Services business.