Fair Value Measurements (Loss) Gain On Assets and Liabilities Measured On A Recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Financial Instrument [Line Items]
Gain (Loss) On Assets and Liabilities Measured On A Recurring Basis	$ (200)	$ (136)	$ 1,233	$ 116
Mortgage Loans Held for Sale [Member]
Financial Instrument [Line Items]
Gain (Loss) On Assets and Liabilities Measured On A Recurring Basis	(1,127)	1,585	1,059	761
Forward Sales of Mortgage Backed Securities [Member]
Financial Instrument [Line Items]
Gain (Loss) On Assets and Liabilities Measured On A Recurring Basis	1,443	(2,520)	(245)	(1,088)
Interest Rate Lock Commitments [Member]
Financial Instrument [Line Items]
Gain (Loss) On Assets and Liabilities Measured On A Recurring Basis	(531)	924	388	696
Best Efforts Contracts [Member]
Financial Instrument [Line Items]
Gain (Loss) On Assets and Liabilities Measured On A Recurring Basis	$ 15	$ (125)	$ 31	$ (253)