Pension Plans (Fair Value Of Plan Assets) (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		$ 57,961	$ 157,350	$ 138,193
International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		57,961
Government [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		11,086
Europe Corporate Investment Grade [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		7,487
Europe Large Capitalization Stocks [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		30,887
Insurance Company Funds [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	[1]	7,668
Cash [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		833
Level 1 [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		50,293
Level 1 [Member] | Government [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		11,086
Level 1 [Member] | Europe Corporate Investment Grade [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		7,487
Level 1 [Member] | Europe Large Capitalization Stocks [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		30,887
Level 1 [Member] | Insurance Company Funds [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	[1]	0
Level 1 [Member] | Cash [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		833
Level 2 [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		7,668
Level 2 [Member] | Government [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		0
Level 2 [Member] | Europe Corporate Investment Grade [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		0
Level 2 [Member] | Europe Large Capitalization Stocks [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		0
Level 2 [Member] | Insurance Company Funds [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	[1]	7,668
Level 2 [Member] | Cash [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		0
Level 3 [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		0
Level 3 [Member] | Government [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		0
Level 3 [Member] | Europe Corporate Investment Grade [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		0
Level 3 [Member] | Europe Large Capitalization Stocks [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		0
Level 3 [Member] | Insurance Company Funds [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	[1]	0
Level 3 [Member] | Cash [Member] | International Plan Assets [Member]
Fair Value of Plan Assets [Line Items]
Fair value of plan assets		$ 0

[1] These investments are comprised primarily of funds invested with an insurance company in Japan with a guaranteed rate of return. The insurance company invests these assets primarily in government and corporate bonds.