XML 67 R57.htm IDEA: XBRL DOCUMENT v3.8.0.1
Loans Loans - USAB Acquisition (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Jan. 01, 2018
Dec. 31, 2017
Mar. 31, 2017
Dec. 31, 2016
Business Combination, Separately Recognized Transactions [Line Items]          
Interest component of expected cash flows (accretable yield) $ (691,086)   $ (282,009) $ (269,831) $ (294,514)
USAmeriBancorp, Inc.          
Business Combination, Separately Recognized Transactions [Line Items]          
Contractually required principal and interest   $ 4,312,988      
Contractual cash flows not expected to be collected (non-accretable difference)   (94,098)      
Expected cash flows to be collected   4,218,890      
Interest component of expected cash flows (accretable yield)   (474,208)      
Fair value of acquired loans   $ 3,744,682