CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jun. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Net income	$ 53,146	$ (20,608)	$ (20,317)
Other comprehensive income (loss):
Foreign currency translation adjustments	289	122	(881)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	(176)	(288)	(104)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	807	723	244
Total other comprehensive income (loss)	1,096	845	(637)
Comprehensive income (loss)	$ 54,242	$ (19,763)	$ (20,954)