Securities (Summary of Cumulative Credit Related Component of OTTI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Summary of cumulative credit related component of OTTI
Balance at beginning of period	$ 0	$ (9,997)	$ (9,997)	$ (9,997)
Add
Incurred on securities not previously impaired	0	0	0	0
Incurred on securities previously impaired	0	0	0	0
Less
Securities sold during the period	0	0	9,997	0
Reclassification due to changes in Company's intent	0	0	0	0
Increases in cash flow expected to be collected	0	0	0	0
Balance at end of period	$ 0	$ (9,997)	$ 0	$ (9,997)