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Commitments and Contingencies (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended		9 Months Ended
	Aug. 22, 2013	Aug. 20, 2013	Sep. 30, 2013	Jul. 10, 2013
Long-term Purchase Commitment [Line Items]
Commitments			$ 31,687
Letter of credit outstanding			2,000
Period of stay	60 days	180 days
Maximum possible loss				650
MMBTU Natual Gas Dollar Equivalent [Member]
Long-term Purchase Commitment [Line Items]
Commitments			3,498
Pounds Of Flour Dollar Equivalent [Member]
Long-term Purchase Commitment [Line Items]
Commitments			11,986
Capital Expenditures [Member]
Long-term Purchase Commitment [Line Items]
Aggregate purchase commitments			$ 842

The estimated maximum amount of possible loss from the contingency.

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- Definition

The floor amount as of the balance sheet date that the entity must expend to satisfy the terms of disclosed arrangements (excluding long-term commitments) in which the entity has agreed to expend funds to procure goods or services from one or more suppliers, other than under a long-term purchase commitment or an unconditional purchase obligation.

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