Consolidated Statements Of Comprehensive Income (USD $) In Thousands	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Comprehensive income:
Net income	$ 85,424	$ 24,368	$ 31,522
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax of $0 for all periods	(7,174)	(9,035)	2,913
Change in pension benefits, net of tax of $3,209 for 2011, $4,293 for 2010 and $10,178 for 2009	(5,110)	(9,850)	(19,232)
Other comprehensive loss	(12,284)	(18,885)	(16,319)
Comprehensive income	$ 73,140	$ 5,483	$ 15,203