Unaudited Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Other comprehensive (loss) income
Net income	$ 5,082	$ 7,910	$ 11,559	$ 61,416
Foreign currency translation adjustments	26,891	(14,724)	22,014	(6,667)
Unrealized derivative gain (loss) on cash flow hedges, net of tax	9,091	(162)	10,093	(211)
Change in pension liability, net of tax	110	235	374	471
Total other comprehensive income (loss)	36,092	(14,651)	32,481	(6,407)
Less: Comprehensive income attributable to non‑controlling interest	(46)	(98)	(90)	(459)
Comprehensive income (loss) attributable to Evoqua Water Technologies Corp.	$ 41,128	$ (6,839)	$ 43,950	$ 54,550