Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (2,041)	$ 3,481	$ (2,629)	$ 13,677
Foreign currency translation adjustments	1,301	2,543	6,544	(1,986)
Comprehensive income (loss)	$ (740)	$ 6,024	$ 3,915	$ 11,691