Business and Credit Concentration (Details)	12 Months Ended
Sep. 30, 2012 Net sales One customer item	Sep. 30, 2011 Net sales One customer item	Sep. 30, 2010 Net sales One customer Predecessor item	Sep. 30, 2012 Net sales Customer concentration risk Customer A	Sep. 30, 2011 Net sales Customer concentration risk Customer A	Sep. 30, 2010 Net sales Customer concentration risk Customer A Predecessor	Sep. 30, 2012 Net sales Customer concentration risk Customer A Wholesale/U.S. Nutrition	Sep. 30, 2011 Net sales Customer concentration risk Customer A Wholesale/U.S. Nutrition	Sep. 30, 2010 Net sales Customer concentration risk Customer A Wholesale/U.S. Nutrition Predecessor	Sep. 30, 2012 Gross accounts receivable Customer concentration risk Customer A Wholesale/U.S. Nutrition	Sep. 30, 2011 Gross accounts receivable Customer concentration risk Customer A Wholesale/U.S. Nutrition	Sep. 30, 2012 Gross accounts receivable Customer concentration risk Customer B Wholesale/U.S. Nutrition	Sep. 30, 2011 Gross accounts receivable Customer concentration risk Customer B Wholesale/U.S. Nutrition
Business and Credit Concentration
Number of customers	1	1	1
Percentage of concentration risk				14.00%	15.00%	17.00%	23.00%	25.00%	27.00%	18.00%	18.00%	11.00%	11.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

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