XML 63 R53.htm IDEA: XBRL DOCUMENT v3.8.0.1
Investment Securities (Investment Securities, At Fair Value) (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Investment Securities [Abstract]    
Available-for-sale Securities, Debt Securities $ 8,432,180 $ 8,725,442
Trading securities 32,025 18,269
Equity securities, FV-NI 49,784 48,838
Equtiy Securities without Readily Determinable Fair Values 1,728 1,753
Federal Reserve Bank Stock 33,369 33,253
Federal Home Loan Bank Stock 10,000 10,000
Private equity investments 64,951 55,752
Total investment securities $ 8,624,037 $ 8,893,307