Securities (Details 3) (Total debt securities [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Total debt securities [Member]
Credit losses at beginning of the period	$ 0	$ 441
Sales of securities for which an other-than-temporary impairment was previously recognized	0	(441)
Ending balance of credit losses on debt securities held for which a portion of an other-than-temporary impairment was recognized in other comprehensive income	$ 0	$ 0