Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Consolidated Statement of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 5,567	$ (3,683)	$ 5,108	$ (3,922)
Foreign currency translation adjustments	4,552	(6,897)	2,014	(11,135)
Comprehensive income (loss)	$ 10,119	$ (10,580)	$ 7,122	$ (15,057)