Subsequent Events (Details) (USD $) In Thousands, except Share data	3 Months Ended
Dec. 31, 2011
Micro Beef Technologies [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement	October 31, 2011
Business Acquisition, Cost of Acquired Entity, Purchase Price	$ 60,000
Business Acquisition, Cost of Acquired Entity, Cash Paid	53,400
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	94,359
Business Acquisition, Cost of Acquired Entity, Equity Interests Issued and Issuable	6,600
Bank Of America And Wells Fargo Lenders [Member] \| Third Amendment [Member]
Subsequent Events [Line Items]
Initiation Date	November 1, 2011
Maximum Borrowing Capacity	150,000
Termination Date	November 1, 2016
Interest Rate Description	the margin on variable interest rate borrowings now ranges from 0.95% to 1.50%
Commitment Fee Description	0.15% to 0.25%
Amount Outstanding	$ 45,100

Amount of cash paid to acquire the entity.

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-Name Statement of Financial Accounting Standard (FAS)

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The acquisition-date fair value of the equity interests of the acquirer, including the number of instruments or interests issued or issuable in consideration for the business combination.

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

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-Name Emerging Issues Task Force (EITF)

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Number of shares of equity interests issued or issuable to acquire entity.

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Amount borrowed under the credit facility as of the balance sheet date.

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

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-Name Regulation S-X (SX)

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-Section 02

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Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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