Condensed Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Condensed Consolidated Statements of Comprehensive Earnings
Net earnings	$ 30,305	$ 41,570
Other comprehensive earnings:
Foreign currency translation adjustments	(2,438)	21,782
Net gain/(loss) on foreign currency transactions designated as hedges of net investments in foreign subsidiaries	1,071	(2,227)
Taxes on changes in foreign currency translation adjustments	(986)	1,684
Foreign currency translation and transactions adjustments, net of tax	(2,353)	21,239
Unrealized gain/(loss) on fair value adjustment of derivative instruments	12,369	(30,658)
Reclassification of net realized (gain)/loss on derivatives to earnings	(10,075)	20,960
Taxes on changes in derivative transactions	(80)	(1,340)
Derivative adjustments, net of tax	2,214	(11,038)
Amortization of pension and other postretirement plan:
Net prior service cost	251	248
Net loss	187	370
Foreign currency exchange rate changes on pension and other postretirement benefit plan liabilities	30	(1,697)
Taxes on changes in pension and other postretirement benefit plan liability adjustments, net of foreign currency exchange rate changes	(114)	356
Pension and other postretirement benefit plan adjustments, net of tax	354	(723)
Total comprehensive earnings	$ 30,520	$ 51,048