Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (225)	$ 7,421	$ (589)	$ 10,196
Foreign currency translation adjustments	894	(6,916)	5,243	(4,529)
Comprehensive income	$ 669	$ 505	$ 4,654	$ 5,667