XML 63 R51.htm IDEA: XBRL DOCUMENT v3.10.0.1
INVESTMENT SECURITIES (Investment Securities at an Unrealized Loss Position) (Details)
$ in Thousands
Jun. 30, 2018
USD ($)
security
Dec. 31, 2017
USD ($)
security
Investments, Debt and Equity Securities [Abstract]    
Number of investment securities in an unrealized loss position | security 345 223
Total temporary impaired securities    
Less than 12 months, Fair Value $ 875,786 $ 559,687
Less than 12 months, Unrealized Losses (19,849) (4,662)
12 months or longer, Fair Value 359,282 360,929
12 months or longer, Unrealized Losses (17,416) (9,129)
Total, Fair Value 1,235,068 920,616
Total, Unrealized Losses (37,265) (13,791)
States and political subdivisions    
Total temporary impaired securities    
Less than 12 months, Fair Value 72,466 53,811
Less than 12 months, Unrealized Losses (1,052) (305)
12 months or longer, Fair Value 15,114 15,403
12 months or longer, Unrealized Losses (928) (414)
Total, Fair Value 87,580 69,214
Total, Unrealized Losses (1,980) (719)
Corporate securities    
Total temporary impaired securities    
Less than 12 months, Fair Value 47,624 0
Less than 12 months, Unrealized Losses (316) 0
12 months or longer, Fair Value 5,144 5,307
12 months or longer, Unrealized Losses (188) (76)
Total, Fair Value 52,768 5,307
Total, Unrealized Losses (504) (76)
U.S. Treasury obligations and direct obligations of U.S Government agencies    
Total temporary impaired securities    
Less than 12 months, Fair Value 28,864 10,740
Less than 12 months, Unrealized Losses (266) (69)
12 months or longer, Fair Value 0 0
12 months or longer, Unrealized Losses 0 0
Total, Fair Value 28,864 10,740
Total, Unrealized Losses (266) (69)
Residential - U.S. Government-sponsored entities    
Total temporary impaired securities    
Less than 12 months, Fair Value 499,759 335,883
Less than 12 months, Unrealized Losses (11,959) (3,372)
12 months or longer, Fair Value 339,024 340,219
12 months or longer, Unrealized Losses (16,300) (8,639)
Total, Fair Value 838,783 676,102
Total, Unrealized Losses (28,259) (12,011)
Residential - Non-government agencies    
Total temporary impaired securities    
Less than 12 months, Fair Value 25,590 0
Less than 12 months, Unrealized Losses (620) 0
12 months or longer, Fair Value 0 0
12 months or longer, Unrealized Losses 0 0
Total, Fair Value 25,590 0
Total, Unrealized Losses (620) 0
Commercial - U.S. Government-sponsored entities    
Total temporary impaired securities    
Less than 12 months, Fair Value 116,420 130,763
Less than 12 months, Unrealized Losses (3,919) (723)
12 months or longer, Fair Value 0 0
12 months or longer, Unrealized Losses 0 0
Total, Fair Value 116,420 130,763
Total, Unrealized Losses (3,919) (723)
Commercial - Non-government agencies    
Total temporary impaired securities    
Less than 12 months, Fair Value 85,063 28,490
Less than 12 months, Unrealized Losses (1,717) (193)
12 months or longer, Fair Value 0 0
12 months or longer, Unrealized Losses 0 0
Total, Fair Value 85,063 28,490
Total, Unrealized Losses $ (1,717) $ (193)