Fair Value Measurements (Loss) Gain On Assets and Liabilities Measured On A Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	$ (253)	$ 200	$ (243)	$ 2,319
Mortgage Loans Held for Sale [Member]
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	328	1,233	431	3,383
Forward Sales or Mortgage Backed Securities [Member]
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	(838)	(1,350)	(925)	(1,334)
Interest Rate Lock Commitments [Member]
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	341	497	328	725
Best Efforts Contracts [Member]
Financial Instrument [Line Items]
(Loss) Gain On Assets and Liabilities Measured On A Recurring Basis	$ (84)	$ (180)	$ (77)	$ (455)