Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
NET EARNINGS	$ 28,752	$ 26,302	$ 44,092	$ 53,081
Other comprehensive income (loss):
Foreign currency translation adjustment	(1,820)	79	(1,878)	3,380
Reclassification of realized gain on cash flow hedge	(935)	0	(935)	0
Unrealized gain on cash flow hedge	1,435	439	1,985	460
Reclassification of amortization of gain on cash flow hedge	0	(77)	0	(154)
Income taxes related to items of other comprehensive income (loss)	(122)	(80)	(257)	(66)
Other comprehensive (loss) income, net of tax	(1,442)	361	(1,085)	3,620
COMPREHENSIVE INCOME	$ 27,310	$ 26,663	$ 43,007	$ 56,701