Derivative Financial Instruments, Effect on Statement of Operations (Details) - No Hedge Designation [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	$ 13	$ 349
Rate-Lock Mortgage Loan Commitments [Member] | Net Gains on Mortgage Loans [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	219	388
Mandatory Commitments to Sell Mortgage Loans [Member] | Net Gains on Mortgage Loans [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	(206)	(39)
Purchased Options [Member] | Interest Expense [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	78	0
Written Options [Member] | Interest Expense [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	(78)	0
Fixed Income Interest Rate [Member] | Interest Rate Swap [Member] | Interest Income [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	(1,118)	(261)
Variable Income Interest Rate [Member] | Interest Rate Swap [Member] | Interest Income [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	$ 1,118	$ 261