CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED)
Net income (loss)	$ (21,957)	$ 4,498	$ (24,364)	$ 9,228
Other comprehensive income (loss):
Foreign currency translation	11,193	(21,950)	(2,111)	(39,571)
Change in unrealized gains/losses from cash flow hedges:
Change in fair value of cash flow hedges, net of tax	930	620	(39)	273
Adjustment for net gains/losses realized and included in net income, net of tax	(1,204)	(294)	(1,204)	(868)
Total change in unrealized gains/losses realized from cash flow hedges, net of tax	(274)	326	(1,243)	(595)
Total other comprehensive income (loss)	10,919	(21,624)	(3,354)	(40,166)
Total comprehensive loss	$ (11,038)	$ (17,126)	$ (27,718)	$ (30,938)