CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net loss	$ (35,127)	$ (313,948)	$ (81,872)
Interest rate derivatives designated as cash flow hedges
Unrealized holding loss arising during period		(106)	(277)
Net amount reclassified to earnings		113	338
Foreign currency translation adjustment, net of tax of $0	302
Net change in unrealized gain	302	7	61
Comprehensive loss	(34,825)	(313,941)	(81,811)
Less: comprehensive loss attributable to noncontrolling interests	18,154	6,424	981
Comprehensive loss attributable to Select Energy Services, Inc.	$ (16,671)	(1,043)
Predecessor
Net loss		(306,481)	(80,891)
Interest rate derivatives designated as cash flow hedges
Less: comprehensive loss attributable to noncontrolling interests		$ 306,474	$ 80,830