Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 5,089	$ 301	$ 3,352	$ (8,691)
Foreign currency translation adjustments	952	(2,543)	(1,416)	(4,132)
Comprehensive income (loss)	$ 6,041	$ (2,242)	$ 1,936	$ (12,823)