XML 13 R45.htm IDEA: XBRL DOCUMENT v3.20.1
Investment Securities - Amount of Securities in Unrealized Loss Position (Detail)
$ in Thousands
Mar. 31, 2020
USD ($)
Investment
Jan. 01, 2020
USD ($)
Dec. 31, 2019
USD ($)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]      
Less than twelve months, fair value     $ 26,767
Debt securities, held-to-maturity, continuous unrealized loss position, less than 12 months, accumulated loss     (110)
Twelve months or longer, fair value     0
Debt securities, held-to-maturity, continuous unrealized loss position, 12 months or longer, accumulated loss     0
Total, fair value     26,767
Debt securities, held-to-maturity, unrealized loss position, accumulated loss     (110)
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]      
Less than twelve months, fair value $ 466   22,825
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss (1)   (62)
Twelve months or longer, fair value 35   115,773
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss 0   (5,443)
Total, fair value 501   138,598
Available-for-sale securities, continuous unrealized loss position, accumulated loss (1)   (5,505)
Debt Securities, Available-for-sale, Unrealized Loss Position 63,200    
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 11,900    
Debt securities, available-for-sale, allowance for credit loss 897    
U.S. Government Corporations and Agencies [Member]      
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]      
Less than twelve months, fair value     0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss     0
Twelve months or longer, fair value     300
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss     (1)
Total, fair value     300
Available-for-sale securities, continuous unrealized loss position, accumulated loss     (1)
Debt securities, available-for-sale, allowance for credit loss 0    
State and Political Subdivisions [Member]      
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]      
Debt securities, available-for-sale, allowance for credit loss 0    
Residential Mortgage-Backed Securities [Member]      
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]      
Less than twelve months, fair value     26,767
Debt securities, held-to-maturity, continuous unrealized loss position, less than 12 months, accumulated loss     (110)
Twelve months or longer, fair value     0
Debt securities, held-to-maturity, continuous unrealized loss position, 12 months or longer, accumulated loss     0
Total, fair value     26,767
Debt securities, held-to-maturity, unrealized loss position, accumulated loss     (110)
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]      
Less than twelve months, fair value 466   21,827
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss (1)   (62)
Twelve months or longer, fair value 35   48,672
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss 0   (413)
Total, fair value 501   70,499
Available-for-sale securities, continuous unrealized loss position, accumulated loss $ (1)   (475)
Number of securities | Investment 4    
Debt securities, available-for-sale, allowance for credit loss $ 0    
Collateralized Mortgage Obligations [Member]      
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]      
Less than twelve months, fair value     0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss     0
Twelve months or longer, fair value     1,295
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss     (22)
Total, fair value     1,295
Available-for-sale securities, continuous unrealized loss position, accumulated loss     (22)
Debt securities, available-for-sale, allowance for credit loss $ 0    
Corporate Bonds [Member]      
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]      
Less than twelve months, fair value     998
Available-for-sale securities, continuous unrealized loss position, less than 12 months, accumulated loss     0
Twelve months or longer, fair value     65,506
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss     (5,007)
Total, fair value     66,504
Available-for-sale securities, continuous unrealized loss position, accumulated loss     (5,007)
Number of securities | Investment 24    
Debt securities, available-for-sale, allowance for credit loss $ 897 $ 0 $ 0