Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	12 Months Ended
	Oct. 02, 2010	Sep. 30, 2012	Sep. 30, 2011
Changes in goodwill
Balance at the beginning of the period	$ 1,217,940	$ 1,212,199	$ 1,217,940
Acquisition accounting adjustments	1,217,940
Foreign currency translation		8,116	(6,458)
Acquisitions			717
Balance at the end of the period		1,220,315	1,212,199
Wholesale/U.S. Nutrition
Changes in goodwill
Balance at the beginning of the period	610,289	608,974	610,289
Acquisition accounting adjustments	610,289
Foreign currency translation		4,587	(2,032)
Acquisitions			717
Balance at the end of the period		613,561	608,974
European Retail
Changes in goodwill
Balance at the beginning of the period	281,922	277,496	281,922
Acquisition accounting adjustments	281,922
Foreign currency translation		3,529	(4,426)
Balance at the end of the period		281,025	277,496
Direct Response/E-Commerce
Changes in goodwill
Balance at the beginning of the period	317,985		317,985
Acquisition accounting adjustments	317,985
Balance at the end of the period		317,985	317,985
North American Retail
Changes in goodwill
Balance at the beginning of the period	7,744		7,744
Acquisition accounting adjustments	7,744
Balance at the end of the period		7,744	7,744
Predecessor
Changes in goodwill
Balance at the beginning of the period	335,159		335,159
Elimination of predecessor goodwill	(335,159)
Predecessor | Wholesale/U.S. Nutrition
Changes in goodwill
Balance at the beginning of the period	182,414		182,414
Elimination of predecessor goodwill	(182,414)
Predecessor | European Retail
Changes in goodwill
Balance at the beginning of the period	136,640		136,640
Elimination of predecessor goodwill	(136,640)
Predecessor | Direct Response/E-Commerce
Changes in goodwill
Balance at the beginning of the period	16,105		16,105
Elimination of predecessor goodwill	$ (16,105)