Business Segments Gain on Purchase Accounting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011
Business Segments [Abstract]
Bargain Purchase Gain	$ (1,219)	$ 1,219	$ 0

In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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+ Details