CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Consolidated net (loss) income	$ (9,629)	$ (6,664)	$ (96,561)	$ (90,075)
Other comprehensive (loss), net of tax
Foreign currency translation	962	(1,114)
Defined benefit plans:
Foreign currency translation	962	(1,114)
Other comprehensive income (loss), net of tax	908	(774)	6,202	(637)
Consolidated comprehensive loss	(8,721)	(7,438)	(90,359)	(90,712)
Less: Comprehensive income (loss) attributable to non-controlling interests	365	(577)	756	(941)
Comprehensive loss attributable to common stockholders	(9,086)	(6,861)	(91,115)	(89,771)
Defined benefit plans
Other comprehensive (loss), net of tax
Foreign currency translation	26	0	267	0
Defined benefit plans:
Pension cost amortization	(54)	340	(108)	230
Foreign currency translation	26	0	267	0
Operating related
Other comprehensive (loss), net of tax
Foreign currency translation	936	(1,114)	6,043	(867)
Defined benefit plans:
Foreign currency translation	$ 936	$ (1,114)	$ 6,043	$ (867)