XML 57 R46.htm IDEA: XBRL DOCUMENT v3.20.2
INVESTMENTS (Gross Unrealized Losses and Fair Value by Length of Time of Available-For-Sale Securities) (Detail)
$ in Thousands
Jun. 30, 2020
USD ($)
Securities
Dec. 31, 2019
USD ($)
Securities
Schedule Of Available For Sale Securities [Line Items]    
Number of Securities | Securities 51 50
Fair Value $ 155,930 $ 343,143
Less than 12 months 1,660 2,756
More than 12 months 3,118 849
Total Unrealized Losses $ 4,778 $ 3,605
U.S. treasuries and government agencies    
Schedule Of Available For Sale Securities [Line Items]    
Number of Securities | Securities 8 12
Fair Value $ 90,594 $ 151,132
Less than 12 months 1,437 2,211
More than 12 months 3,082 475
Total Unrealized Losses $ 4,519 $ 2,686
State and municipal    
Schedule Of Available For Sale Securities [Line Items]    
Number of Securities | Securities 13 3
Fair Value $ 35,194 $ 7,227
Less than 12 months 127 37
More than 12 months 0 0
Total Unrealized Losses $ 127 $ 37
Mortgage-Backed and asset-backed    
Schedule Of Available For Sale Securities [Line Items]    
Number of Securities | Securities 29 35
Fair Value $ 29,634 $ 184,784
Less than 12 months 93 508
More than 12 months 36 374
Total Unrealized Losses $ 129 $ 882
Corporate Debt    
Schedule Of Available For Sale Securities [Line Items]    
Number of Securities | Securities 1  
Fair Value $ 508  
Less than 12 months 3  
More than 12 months 0  
Total Unrealized Losses $ 3