CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net earnings	$ 16,314	$ 17,822	$ 30,000	$ 104,599
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	116	(6,885)	5,465	(2,962)
Total other comprehensive income (loss), net of tax	116	(6,885)	5,465	(2,962)
Comprehensive income	$ 16,430	$ 10,937	$ 35,465	$ 101,637