XML 69 R55.htm IDEA: XBRL DOCUMENT v3.21.2
Investments (Investments Held in a Loss Position) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Fair value    
Fair Value $ 1,135,303 $ 212,934
Less than 12 Months, Fair Value 1,094,853 191,081
More than 12 Months, Fair Value 40,450 21,853
Unrealized Loss    
Unrealized Loss 9,287 3,428
Less than 12 Months, Unrealized Loss 8,321 3,099
More than 12 Months, Unrealized Loss 966 329
U.S. Treasury obligations    
Fair value    
Fair Value 106,134 14,390
Less than 12 Months, Fair Value 106,134 14,390
More than 12 Months, Fair Value 0 0
Unrealized Loss    
Unrealized Loss 450 23
Less than 12 Months, Unrealized Loss 450 23
More than 12 Months, Unrealized Loss 0 0
U.S. Government-sponsored enterprise obligations    
Fair value    
Fair Value 10,597  
Less than 12 Months, Fair Value 10,597  
More than 12 Months, Fair Value 0  
Unrealized Loss    
Unrealized Loss 92  
Less than 12 Months, Unrealized Loss 92  
More than 12 Months, Unrealized Loss 0  
State and municipal bonds    
Fair value    
Fair Value 82,424 6,416
Less than 12 Months, Fair Value 82,424 6,416
More than 12 Months, Fair Value 0 0
Unrealized Loss    
Unrealized Loss 568 39
Less than 12 Months, Unrealized Loss 568 39
More than 12 Months, Unrealized Loss 0 0
Corporate debt    
Fair value    
Fair Value 494,307 94,695
Less than 12 Months, Fair Value 470,974 79,436
More than 12 Months, Fair Value 23,333 15,259
Unrealized Loss    
Unrealized Loss 4,718 1,302
Less than 12 Months, Unrealized Loss 4,379 1,020
More than 12 Months, Unrealized Loss 339 282
Residential mortgage-backed securities    
Fair value    
Fair Value 280,955 34,928
Less than 12 Months, Fair Value 273,972 34,509
More than 12 Months, Fair Value 6,983 419
Unrealized Loss    
Unrealized Loss 2,599 382
Less than 12 Months, Unrealized Loss 2,354 381
More than 12 Months, Unrealized Loss 245 1
Agency commercial mortgage-backed securities    
Fair value    
Fair Value 3,127  
Less than 12 Months, Fair Value 3,127  
More than 12 Months, Fair Value 0  
Unrealized Loss    
Unrealized Loss 40  
Less than 12 Months, Unrealized Loss 40  
More than 12 Months, Unrealized Loss 0  
Other commercial mortgage-backed securities    
Fair value    
Fair Value 44,994 18,766
Less than 12 Months, Fair Value 39,581 18,480
More than 12 Months, Fair Value 5,413 286
Unrealized Loss    
Unrealized Loss 452 940
Less than 12 Months, Unrealized Loss 142 935
More than 12 Months, Unrealized Loss 310 5
Other asset-backed securities    
Fair value    
Fair Value 112,765 43,739
Less than 12 Months, Fair Value 108,044 37,850
More than 12 Months, Fair Value 4,721 5,889
Unrealized Loss    
Unrealized Loss 368 742
Less than 12 Months, Unrealized Loss 296 701
More than 12 Months, Unrealized Loss $ 72 $ 41