CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - 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 (LOSS)
Net income (loss)	$ (3,632)	$ 4,068	$ (11,659)	$ 7,336
Other comprehensive income (loss), net of tax:
Pension and postretirement	1,527	1,720	3,055	3,439
Foreign currency translation adjustment	(268)	(3,918)	4,582	325
Other comprehensive income (loss)	1,259	(2,198)	7,637	3,764
Comprehensive income (loss)	$ (2,373)	$ 1,870	$ (4,022)	$ 11,100