SCHEDULE II Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified			12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Inventory reserves	Sep. 30, 2011 Inventory reserves	Sep. 30, 2010 Inventory reserves Predecessor	Sep. 30, 2012 Allowance for doubtful accounts	Sep. 30, 2011 Allowance for doubtful accounts	Sep. 30, 2010 Allowance for doubtful accounts Predecessor	Sep. 30, 2012 Promotional programs incentive allowance	Sep. 30, 2011 Promotional programs incentive allowance	Sep. 30, 2010 Promotional programs incentive allowance Predecessor	Sep. 30, 2012 Allowance for sales returns	Sep. 30, 2011 Allowance for sales returns	Sep. 30, 2010 Allowance for sales returns Predecessor	Sep. 30, 2012 Valuation allowance for deferred tax assets	Sep. 30, 2011 Valuation allowance for deferred tax assets	Sep. 30, 2010 Valuation allowance for deferred tax assets Predecessor
Changes in valuation and qualifying accounts
Balance at beginning of period	$ 87,449	$ 90,762	$ 22,364		$ 24,097	$ 5,376		$ 3,723	$ 74,593	$ 56,968	$ 49,071	$ 10,793	$ 9,457	$ 11,707	$ 15,404	$ 14,618	$ 13,063
Additions, Charged to costs and expenses			(2,652)	22,364	934	297	5,376	1,256	307,371	292,298	244,985	28,333	27,562	25,203	1,240	1,105	1,897
Additions, Charged to other accounts								822
Deductions						(429)		(226)	(310,119)	(274,673)	(237,088)	(28,766)	(26,226)	(27,453)	(1,777)	(319)	(342)
Balance at end of period	$ 87,449	$ 90,762	$ 19,712	$ 22,364	$ 25,031	$ 5,244	$ 5,376	$ 5,575	$ 71,845	$ 74,593	$ 56,968	$ 10,360	$ 10,793	$ 9,457	$ 14,867	$ 15,404	$ 14,618