Acquisitions (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2011 Nelson Laboratories [Member] store	Sep. 30, 2012 Micro Beef Technologies [Member]	Sep. 30, 2013 Prescription Containers, Inc. [Member]	Sep. 30, 2012 Minimum [Member] Micro Beef Technologies [Member]	Sep. 30, 2012 Maximum [Member] Micro Beef Technologies [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement	Mar. 21, 2011	Oct. 31, 2011	Dec. 31, 2012
Business Acquisition, Cost of Acquired Entity, Purchase Price		$ 60,878	$ 17,107
Business Acquisition, Cost of Acquired Entity, Cash Paid	7,000	53,400
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred		320
Business Acquisition, Cost of Acquired Entity, Transaction Costs		1,104
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		94,359
Business Acquisition, Cost of Acquired Entity, Equity Interests Issued and Issuable		7,158
Business Acquisition, Places in Acquiree Distribution Network	1,100
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years		10 years	5 years	17 years
Business Acquisition, Goodwill, Expected Tax Deductible, Period	15 years	15 years	15 years
Finite-Lived Intangible Assets, Purchase Accounting Adjustments			$ 1,190