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Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012
Commitments and Contingencies (Textual) [Abstract]
Loss Contingency, Range of Possible Loss, Minimum	$ 0
Loss Contingency, Range of Possible Loss, Maximum	$ 30

The estimated maximum amount of possible loss from the contingency.

The estimated minimum amount of possible loss from the contingency.