Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
NET EARNINGS	$ 27,507	$ 5,079	$ 39,693	$ 20,279
Other comprehensive income (loss):
Foreign currency translation adjustment	597	1,692	579	1,353
Unrealized loss on cash flow hedge	(390)	(297)	(703)	(1,184)
Reclassification of gain on cash flow hedge	(77)		(231)
Income taxes related to items of other comprehensive income	115	222	230	445
Other comprehensive income (loss), net of tax	245	1,617	(125)	614
COMPREHENSIVE INCOME	$ 27,752	$ 6,696	$ 39,568	$ 20,893