Pension Plans (Tables)

12 Months Ended

Sep. 30, 2011

Schedule of Available-for-sale Securities [Line Items]

Accounting For The Pension Plans

	U.S. Plan									International Plans
	2011			2010			2009			2011			2010			2009
Weighted average assumptions used to determine benefit obligations at September 30 measurement date:
Discount rate		4.50	%		5.00	%		5.50	%		4.8	%		4.0	%		5.1	%
Rate of increase in future compensation (1)		—			—			—			3.0	%		2.1	%		2.1	%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30:
Discount rate		5.00	%		5.50	%		7.50	%		4.0	%		5.1	%		5.7	%
Rate of increase in future compensation		—			—			—			2.7	%		2.1	%		2.2	%
Rate of return on plan assets		7.25	%		7.50	%		7.50	%		5.6	%		6.1	%		6.2	%

(1) The rate of increase in future compensation is weighted for all plans, ongoing and frozen (with a 0% increase for frozen plans). The weighted rate of increase for ongoing non-U.S. plans was 2.7% at September 30, 2011 and 2010.

Components Of Net Periodic Pension Cost

	U.S. Plan									International Plans
	2011			2010			2009			2011			2010			2009
	(in thousands)
Interest cost of projected benefit obligation	$	5,627		$	5,626		$	5,695		$	2,382		$	2,401		$	2,312
Service cost		—			—			—			1,782			1,563			1,410
Expected return on plan assets		(5,373	)		(4,881	)		(4,974	)		(2,254	)		(2,291	)		(1,903	)
Amortization of prior service cost		—			—			—			—			—			—
Settlement gain		—			—			—			—			—			—
Recognized actuarial loss (gain)		2,549			2,344			1,226			334			(26	)		(102	)
Net periodic pension cost	$	2,803		$	3,089		$	1,947		$	2,244		$	1,647		$	1,717

Change In Benefit Obligation And Plan Assets

	U.S. Plan						International Plans						Total
	Year ended September 30,
	2011			2010			2011			2010			2011			2010
	(in thousands)
Change in benefit obligation:
Projected benefit obligation—beginning of year	$	113,558		$	103,068		$	58,828		$	50,423		$	172,386		$	153,491
Service cost		—			—			1,782			1,563			1,782			1,563
Interest cost		5,627			5,626			2,382			2,401			8,009			8,027
Actuarial loss		8,467			8,416			(6,416	)		8,518			2,051			16,934
Foreign exchange impact		—			—			39			(2,505	)		39			(2,505	)
Participant contributions		—			—			445			400			445			400
Benefits paid		(4,007	)		(3,552	)		(1,605	)		(1,972	)		(5,612	)		(5,524	)
Plan Amendments		—			—			(73	)		—			(73	)		—
Projected benefit obligation—end of year	$	123,645		$	113,558		$	55,382		$	58,828		$	179,027		$	172,386
Change in plan assets and funded status:
Plan assets at fair value—beginning of year	$	75,953		$	65,735		$	39,167		$	39,336		$	115,120		$	105,071
Actual return on plan assets		2,421			6,660			(4,022	)		1,008			(1,601	)		7,668
Employer contributions		—			7,110			2,206			2,101			2,206			9,211
Participant contributions		—			—			445			400			445			400
Foreign exchange impact		—			—			223			(1,706	)		223			(1,706	)
Benefits paid		(4,007	)		(3,552	)		(1,605	)		(1,972	)		(5,612	)		(5,524	)
Plan assets at fair value—end of year		74,367			75,953			36,414			39,167			110,781			115,120
Projected benefit obligation—end of year		123,645			113,558			55,382			58,828			179,027			172,386
Underfunded status	$	(49,278	)	$	(37,605	)	$	(18,968	)	$	(19,661	)	$	(68,246	)	$	(57,266	)
Accumulated benefit obligation—end of year	$	123,645		$	113,558		$	51,083		$	54,991		$	174,728		$	168,549
Amounts recognized in the balance sheet:
Non-current liability	$	(49,278	)	$	(37,605	)	$	(18,968	)	$	(19,661	)	$	(68,246	)	$	(57,266	)
Amounts in accumulated other comprehensive loss:
Unrecognized actuarial loss	$	78,470		$	69,600		$	7,722		$	8,272		$	86,192		$	77,872

Percentage Of Total Plan Assets

	U.S. Plan						International Plans
	September 30,
	2011			2010			2011			2010
Asset category:
Equity securities		60	%		60	%		41	%		42	%
Fixed income securities		40	%		40	%		31	%		37	%
Other		—			—			28	%		21	%
		100	%		100	%		100	%		100	%

Expected Future Benefit Payments

	U.S. Plan		International Plans		Total
	(in thousands)
Year ending September 30,
2012	$	4,001	$	1,691	$	5,692
2013		4,369		1,696		6,065
2014		4,801		1,755		6,556
2015		5,236		1,889		7,125
2016		5,676		2,067		7,743
2017 to 2021		36,180		14,415		50,595

U.S. Plan Assets Common Collective Trusts [Member]

Schedule of Available-for-sale Securities [Line Items]

Fair Value Of Plan Assets

	September 30, 2011
	Level 1		Level 2		Level 3		Total
	(in thousands)
U.S. plan assets-common/collective trusts:
Fixed income securities:
U.S. Treasury, agency and other local government and non-corporate	$	—	$	9,991	$	—	$	9,991
Mortgage-backed		—		8,678		—		8,678
Corporate investment grade		—		10,948		—		10,948
U.S. equity securities:
Large capitalization stocks		—		33,368		—		33,368
Small capitalization stocks		—		4,936		—		4,936
U.S. real estate investment trusts		—		712		—		712
International equity securities:
Large/mid capitalization stocks		—		4,913		—		4,913
Small capitalization stocks		—		72		—		72
Emerging large/mid capitalization stocks		—		686		—		686
Commodities		—		63		—		63
	$	—	$	74,367	$	—	$	74,367

International Plan Assets [Member]

Schedule of Available-for-sale Securities [Line Items]

Fair Value Of Plan Assets

	September 30, 2011
	Level 1		Level 2		Level 3		Total
	(in thousands)
International plan assets:
Fixed income securities:
Government	$	7,062	$	—	$	—	$	7,062
Europe corporate investment grade		4,299		—		—		4,299
Europe large capitalization stocks		14,984		—		—		14,984
Insurance company funds (1)		—		9,223		—		9,223
Cash		846		—		—		846
	$	27,191	$	9,223	$	—	$	36,414

(1) These investments are comprised primarily of fixed income security funds invested with an insurance company in Japan.