XML 51 R41.htm IDEA: XBRL DOCUMENT v3.19.2
Securities - Schedule of Debt Securities Components (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
AVAILABLE FOR SALE    
Amortized Cost $ 2,045,507 $ 2,013,485
Gross unrealized gains 44,665 10,554
Gross unrealized losses 1,385 34,603
Estimated fair value 2,088,787 1,989,436
HELD TO MATURITY    
Amortized cost 147,091 162,931
Gross unrealized gains 4,516 360
Gross unrealized losses 300 3,510
Estimated Fair Value 151,307 159,781
State and political subdivisions    
AVAILABLE FOR SALE    
Amortized Cost 512,575 728,142
Gross unrealized gains 16,758 6,115
Gross unrealized losses 478 17,656
Estimated fair value 528,855 716,601
HELD TO MATURITY    
Amortized cost 3,018 3,083
Gross unrealized gains 36 5
Gross unrealized losses 0 42
Estimated Fair Value 3,054 3,046
Other stocks and bonds    
AVAILABLE FOR SALE    
Amortized Cost 3,000 3,000
Gross unrealized gains 0 0
Gross unrealized losses 41 291
Estimated fair value 2,959 2,709
Residential    
AVAILABLE FOR SALE    
Amortized Cost [1] 1,296,888 738,585
Gross unrealized gains [1] 22,944 3,498
Gross unrealized losses [1] 846 9,111
Estimated fair value [1] 1,318,986 732,972
HELD TO MATURITY    
Amortized cost [1] 59,756 59,655
Gross unrealized gains [1] 2,496 154
Gross unrealized losses [1] 144 1,140
Estimated Fair Value [1] 62,108 58,669
Commercial    
AVAILABLE FOR SALE    
Amortized Cost [1] 233,044 543,758
Gross unrealized gains [1] 4,963 941
Gross unrealized losses [1] 20 7,545
Estimated fair value [1] 237,987 537,154
HELD TO MATURITY    
Amortized cost [1] 84,317 100,193
Gross unrealized gains [1] 1,984 201
Gross unrealized losses [1] 156 2,328
Estimated Fair Value [1] $ 86,145 $ 98,066
[1]
All mortgage-backed securities issued and/or guaranteed by U.S. government agencies or U.S. government-sponsored enterprises.