Quarterly Financial Data (Unaudited) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Data (Unaudited) [Abstract]
Gain (Loss) on Sale of Mortgage Loans	$ 17,000	$ 2,200	$ 10,080	$ 12,542	$ 17,225