Condensed Consolidated Statements of Comprehensive Earnings (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Comprehensive earnings
Net earnings	$ 23,663	$ 28,302	$ 93,477	$ 95,470
Other comprehensive earnings:
Foreign currency translation adjustments	1,056	(13,565)	(5,002)	(14,018)
Taxes on changes in foreign currency translation adjustments	387	(1,166)	806	2,127
Foreign currency translation adjustments, net of tax	1,443	(14,731)	(4,196)	(11,891)
Reclassification of unrecognized derivative losses to earnings	42	43	128	131
Unrealized gain on derivatives arising during the period	546	0	546	0
Taxes on changes in derivative transactions	(223)	(16)	(256)	(50)
Derivative adjustments, net of tax	365	27	418	81
Minimum retirement benefit liability adjustments:
Minimum retirement benefits liability adjustments	587	14	2,618	141
Taxes on changes on minimum retirement benefit liability adjustments	(214)	(5)	(939)	(50)
Minimum retirement benefit liability adjustments, net of tax	373	9	1,679	91
Total comprehensive earnings	$ 25,844	$ 13,607	$ 91,378	$ 83,751