Fixed Maturity Securities in an Unrealized Loss Position (Non-Investment Grade Fixed Maturity Securities) (Details) - External Credit Rating, Non Investment Grade $ in Thousands	Dec. 31, 2022 USD ($)
Foreign government
Debt Securities, Available-for-sale [Line Items]
Number of Securities	1
Aggregate Fair Value	$ 16
Gross Unrealized Loss	$ 10
Corporate
Debt Securities, Available-for-sale [Line Items]
Number of Securities	14
Aggregate Fair Value	$ 4,464
Gross Unrealized Loss	$ 269
Mortgage- Backed
Debt Securities, Available-for-sale [Line Items]
Number of Securities	10
Aggregate Fair Value	$ 39,347
Gross Unrealized Loss	$ 4,649
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Number of Securities	1
Aggregate Fair Value	$ 12,247
Gross Unrealized Loss	$ 2,756
Debt Securities
Debt Securities, Available-for-sale [Line Items]
Number of Securities	62
Aggregate Fair Value	$ 175,406
Gross Unrealized Loss	$ 81,584
State and municipal
Debt Securities, Available-for-sale [Line Items]
Number of Securities	36
Aggregate Fair Value	$ 119,332
Gross Unrealized Loss	$ 73,900