Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Deferred tax assets:
Inventory reserves and UNICAP	$ 7,652	$ 7,481
Accrued expenses and reserves not currently deductible	18,860	18,785
Other comprehensive income	13,522	11,386
Foreign and state tax credits	88,296	54,210
Foreign/State net operating losses	13,660	12,614
Valuation allowance	(14,867)	(15,404)	(14,618)
Total deferred income tax assets, net of valuation allowance	127,123	89,072
Deferred tax liabilities:
Property, plant and equipment	(45,515)	(53,468)
Intangibles	(696,814)	(711,230)
Undistributed foreign earnings	(84,958)	(50,632)
Total deferred income tax liabilities	(827,287)	(815,330)
Total net deferred income tax assets / (liabilities)	(700,164)	(726,258)
Less current deferred income tax assets	(26,242)	(24,340)
Long-term deferred income tax liabilities	$ (726,406)	$ (750,598)