Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010 Predecessor
Reconciliation of the income tax expense computed using the statutory Federal income tax rate to the actual income tax expense
Income tax expense at statutory rate	$ 82,174	$ 15,291	$ 115,252
State income taxes, net of federal income tax benefit	1,566	(1,125)	7,090
Change in valuation allowance	(539)	786	1,556
Effect of international operations, including foreign export benefit and earnings indefinitely reinvested	(8,476)	(3,625)	(6,638)
Domestic manufacturing deduction	(1,918)	(1,874)	(4,200)
Transaction costs		1,164	2,745
Tax benefit attributable to Le Naturiste sale	(7,792)
Other	249	372	(1,535)
Total provision	$ 65,264	$ 10,989	$ 114,270
Reconciliation of the income tax expense computed using the statutory Federal income tax rate to the effective income tax rate
Income tax expense at statutory rate (as a percent)	35.00%	35.00%	35.00%
State income taxes, net of federal income tax benefit (as a percent)	0.60%	(2.60%)	2.20%
Change in valuation allowance (as a percent)	(0.10%)	1.80%	0.50%
Effect of international operations, including foreign export benefit and earnings indefinitely reinvested (as a percent)	(3.60%)	(8.30%)	(2.00%)
Domestic manufacturing deduction (as a percent)	(0.80%)	(4.30%)	(1.30%)
Transaction costs (as a percent)	0.00%	2.70%	0.80%
Tax benefit attributable to Le Naturiste sale (as a percent)	(3.30%)
Other (as a percent)	0.00%	0.80%	(0.50%)
Effective income tax rate (as a percent)	27.80%	25.10%	34.70%