XML 125 R106.htm IDEA: XBRL DOCUMENT v3.8.0.1
Outstanding Commitments to Extend Credit and Letters of Credit (Details) - Reserve for Off-balance Sheet Activities - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Valuation allowances and reserves $ 368,774 $ 395,260
Commercial and other    
Valuation allowances and reserves 3,689,700 3,673,815
Home equity    
Valuation allowances and reserves 1,422,284 1,368,465
Commerical mortgage and construction    
Valuation allowances and reserves 1,093,045 1,033,287
Total commitments to extend credit    
Valuation allowances and reserves 6,205,029 6,075,567
Standby letters of credit    
Valuation allowances and reserves 326,973 356,359
Commercial letters of credit    
Valuation allowances and reserves $ 41,801 $ 38,901