Fair Value Measurements (Fair Value Mortgage Loans Held For Sale Disclosures) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]
Mortgage loans held for sale, amortized cost	$ 12,772	$ 48,370
Mortgage loans held for sale, at fair value	13,105	50,056
Mortgage Loans Held for Sale Difference between Fair Value and Principal Amount	$ 333	$ 1,700

Amount of mortgage loans held for sale. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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