Condensed Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Comprehensive earnings
Net earnings	$ 51,047	$ 43,753	$ 117,691	$ 131,392
Other comprehensive earnings:
Foreign currency translation adjustments	(9,359)	6,979	(9,488)	(27,966)
Gain (loss) on foreign currency transaction designated as a hedge of a net investment in a foreign subsidiary (Note 6)	395	11	912	11
Taxes on changes in foreign currency translation adjustments	444	240	149	1,500
Foreign currency translation adjustments, net of tax	(8,520)	7,230	(8,427)	(26,455)
Reclassification of net realized losses on derivatives to earnings (Note 6)	(18)	25	39	74
Taxes on changes in derivative transactions	7	(10)	(14)	(28)
Derivative adjustments, net of tax	(11)	15	25	46
Minimum retirement benefit liability adjustments (Note 18):
Amortization of net prior service cost	56	56	169	169
Amortization of net loss	424	128	1,276	385
Foreign currency exchange rate changes on minimum retirement benefit liabilities	657	(604)	1,228	454
Taxes on changes on minimum retirement benefit liability adjustments, net of foreign currency exchange rate changes	(421)	141	(997)	(368)
Minimum retirment benefit liabiilty adjustments, net of tax	716	(279)	1,676	640
Total comprehensive earnings	$ 43,232	$ 50,719	$ 110,965	$ 105,623