Investments - Schedule of Fixed Maturities and Number of Fixed Maturities in Unrealized Loss Position and Percentage Investment Grade (Details)	Jun. 30, 2022 Security
Schedule Of Available For Sale Securities [Line Items]
Fair Value with Securities with Unrealized Losses 12 months or less, Total	203,006
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost	116,048
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Between 10% and 20% of Amortized Cost	66,586
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Greater than 20% of Amortized Cost	20,372
Fair Value with Securities with Unrealized Losses 12 months or less, Number of Fixed Maturities Total	707
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost Number of Fixed Maturities	345
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Between 10% and 20% of Amortized Cost, Number of Fixed Maturities Total	260
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Greater than 20% of Amortized Cost Number Fixed Maturities Total	102
Fair Value with Securities with Unrealized Losses greater than 12 months, Total	9,710
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Less than 10% of Amortized Cost	5,731
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Between 10% and 20% of Amortized Cost	2,392
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Greater than 20% of Amortized Cost	1,587
Fair Value with Securities with Unrealized Losses greater than 12 months, Number of Fixed Maturities, Total	44
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Less than 10% of Amortized Cost Number of Fixed Maturities Total	18
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Between 10% and 20% of Amortized Cost Number of Fixed Maturities Total	9
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Greater than 20% of Amortized Cost Number of Fixed Maturities Total	17
U.S. Government and Agencies
Schedule Of Available For Sale Securities [Line Items]
Fair Value with Securities with Unrealized Losses 12 months or less, Total	2,998
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost	2,998
Fair Value with Securities with Unrealized Losses 12 months or less, Percent Investment Grade	100.00%
U.S. Agency Mortgage-backed
Schedule Of Available For Sale Securities [Line Items]
Fair Value with Securities with Unrealized Losses 12 months or less, Total	5,697
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost	5,223
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Between 10% and 20% of Amortized Cost	474
Fair Value with Securities with Unrealized Losses 12 months or less, Percent Investment Grade	100.00%
Fair Value with Securities with Unrealized Losses greater than 12 months, Total	89
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Less than 10% of Amortized Cost	10
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Between 10% and 20% of Amortized Cost	79
Fair Value with Securities with Unrealized Losses greater than 12 months, Percent Investment Grade	100.00%
State and Political Subdivisions
Schedule Of Available For Sale Securities [Line Items]
Fair Value with Securities with Unrealized Losses 12 months or less, Total	40,539
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost	8,811
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Between 10% and 20% of Amortized Cost	20,140
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Greater than 20% of Amortized Cost	11,588
Fair Value with Securities with Unrealized Losses 12 months or less, Percent Investment Grade	99.00%
Fair Value with Securities with Unrealized Losses greater than 12 months, Total	842
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Between 10% and 20% of Amortized Cost	455
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Greater than 20% of Amortized Cost	387
Fair Value with Securities with Unrealized Losses greater than 12 months, Percent Investment Grade	100.00%
Corporate and Miscellaneous
Schedule Of Available For Sale Securities [Line Items]
Fair Value with Securities with Unrealized Losses 12 months or less, Total	95,370
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost	48,090
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Between 10% and 20% of Amortized Cost	38,575
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Greater than 20% of Amortized Cost	8,705
Fair Value with Securities with Unrealized Losses 12 months or less, Percent Investment Grade	62.00%
Fair Value with Securities with Unrealized Losses greater than 12 months, Total	1,386
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Between 10% and 20% of Amortized Cost	418
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Greater than 20% of Amortized Cost	968
Fair Value with Securities with Unrealized Losses greater than 12 months, Percent Investment Grade	80.00%
Residential Mortgage-backed
Schedule Of Available For Sale Securities [Line Items]
Fair Value with Securities with Unrealized Losses 12 months or less, Total	3,548
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost	3,260
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Between 10% and 20% of Amortized Cost	288
Fair Value with Securities with Unrealized Losses 12 months or less, Percent Investment Grade	89.00%
Fair Value with Securities with Unrealized Losses greater than 12 months, Total	630
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Less than 10% of Amortized Cost	505
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Between 10% and 20% of Amortized Cost	26
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Greater than 20% of Amortized Cost	99
Fair Value with Securities with Unrealized Losses greater than 12 months, Percent Investment Grade	78.00%
Commercial Mortgage-backed
Schedule Of Available For Sale Securities [Line Items]
Fair Value with Securities with Unrealized Losses 12 months or less, Total	19,075
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost	18,543
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Between 10% and 20% of Amortized Cost	532
Fair Value with Securities with Unrealized Losses 12 months or less, Percent Investment Grade	96.00%
Fair Value with Securities with Unrealized Losses greater than 12 months, Total	6,763
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Less than 10% of Amortized Cost	5,216
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Between 10% and 20% of Amortized Cost	1,414
Fair Value with Securities with Unrealized Losses greater than 12 months, Impairment is Greater than 20% of Amortized Cost	133
Fair Value with Securities with Unrealized Losses greater than 12 months, Percent Investment Grade	75.00%
Asset-backed
Schedule Of Available For Sale Securities [Line Items]
Fair Value with Securities with Unrealized Losses 12 months or less, Total	35,779
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Less than 10% of Amortized Cost	29,123
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Between 10% and 20% of Amortized Cost	6,577
Fair Value with Securities with Unrealized Losses 12 months or less, Impairment is Greater than 20% of Amortized Cost	79
Fair Value with Securities with Unrealized Losses 12 months or less, Percent Investment Grade	86.00%