Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Consolidated Statements of Comprehensive Earnings
Net earnings	$ 372,971	$ 232,368	$ 171,698
Other comprehensive earnings:
Foreign currency translation adjustments	30,311	21,180	(63,026)
Net (loss) gain on foreign currency transactions designated as hedges of net investments	(2,381)	(3,090)	7,206
Taxes on changes on foreign currency translation adjustments	334	1,011	2,230
Foreign currency translation and transactions adjustments, net of tax	28,264	19,101	(53,590)
Unrealized (loss) gain on fair value adjustment of derivative instruments	(18,551)	(36,587)	89,048
Reclassification of net realized losses (gains) on derivatives to earnings	23,093	33,224	(68,880)
Taxes on changes on derivative transactions	0	(141)	(786)
Derivative adjustments, net of tax	4,542	(3,504)	19,382
Minimum retirement benefit liability adjustments:
Net gain arising during the period	7,826	9,401	6,318
Prior service cost arising during the period	(1,121)	0	0
Amortization of:
Prior service cost	721	720	1,004
Net (gain) loss	(1,049)	(823)	720
Foreign currency exchange rate changes on minimum retirement benefit liabilities	110	247	1,158
Taxes on changes on minimum retirement benefit liability adjustments	(1,320)	(3,250)	(1,936)
Pension and other postretirement benefit plan adjustments, net of tax	5,167	6,295	7,264
Total comprehensive earnings	$ 410,944	$ 254,260	$ 144,754