Schedule V - Valuation Allowances and Qualifying Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of beginning of period	[1]	$ 3,404	$ 1,522	$ 1,849
Additions, charged to costs and expenses	[1]	18,980	1,960	61
Additions, other additions	[1]	0	0	0
Deductions	[1]	222	78	388
Balance as of end of period	[1]	22,162	3,404	1,522
Fixed Income Securities [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of beginning of period	[1]	0
Additions, charged to costs and expenses	[1]	1,035
Additions, other additions	[1]	0
Deductions	[1]	0
Balance as of end of period	[1]	1,035	0
Accounts Receivable [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of beginning of period	[1]	2,233	403	484
Additions, charged to costs and expenses	[1]	1,250	1,908	29
Additions, other additions	[1]	0	0	0
Deductions	[1]	23	78	110
Balance as of end of period	[1]	3,460	2,233	403
Reinsurance Recoverable [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of beginning of period	[1]	1,171	1,119	1,365
Additions, charged to costs and expenses	[1]	0	52	32
Additions, other additions	[1]	0	0	0
Deductions	[1]	199	0	278
Balance as of end of period	[1]	972	1,171	$ 1,119
Deductible Receivable Allowance [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of beginning of period	[1],[2]	0
Additions, charged to costs and expenses	[1],[2]	16,500
Additions, other additions	[1],[2]	0
Deductions	[1],[2]	0
Balance as of end of period	[1],[2]	16,500	0
Mortgage Loans [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of beginning of period	[1]	0
Additions, charged to costs and expenses	[1]	195
Additions, other additions	[1]	0
Deductions	[1]	0
Balance as of end of period	[1]	$ 195	$ 0

[1] Effective January 1, 2020 the Company adopted the measurement of credit losses on financial instruments accounting standard that primarily affected its accounts receivable, reinsurance recoverable and commercial mortgage loans balances.  After consideration of existing valuation allowances maintained prior to adopting the new guidance, the Company increased its valuation allowance for credit losses at January 1, 2020 to conform to the new requirements.

[2] In conjunction with the adoption of the credit losses accounting standard, the Company recorded an allowance for expected credit losses of $16,500 related to the PSG litigation matter.  See Note T – Litigation, Commitments and Contingencies for further discussion.