XML 60 R49.htm IDEA: XBRL DOCUMENT v3.5.0.2
Investment Securities - Pledged Securities and Concentration (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Pledged securities    
Total pledged securities $ 2,800,000 $ 3,100,000
Securities pledged to secure public deposits and repurchase transactions 2,600,000 2,900,000
Securities pledged to secure other financial transactions 216,000 $ 206,300
Non-government issuer    
Concentration of risk    
Securities of issuers in excess of 10% of stockholders' equity $ 0