Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale Securities Pledged as Collateral (Details)

v2.4.0.8
Available-for-Sale Securities Pledged as Collateral (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Available for Sale Securities, at Fair Value [Abstract]    
Available-for-sale Securities Pledged as Collateral $ 12,537,824 $ 12,295,302