Fair Value Measurements (Loss) Gain On Assets and Liabilities Measured On A Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	$ 664	$ 192
Mortgage Loans Held for Sale [Member]
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	924	(597)
Forward Sales or Mortgage Backed Securities [Member]
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	(330)	765
Interest Rate Lock Commitments [Member]
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	193	(47)
Best Efforts Contracts [Member]
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	$ (123)	$ 71