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
Net earnings	$ 12,645	$ 11,528	$ 34,529	$ 28,967
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	4,796	(1,930)	2,981	(1,730)
Net unrealized gain (loss) on derivative instruments	81	(211)	(23)	(129)
Total other comprehensive income (loss), net of tax	4,877	(2,141)	2,958	(1,859)
Comprehensive income	$ 17,522	$ 9,387	$ 37,487	$ 27,108