The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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Investments - Schedule of Mortgage Loan Holdings Diversified by Geography and Property (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Investments [Line Items]
Valuation allowance	$ (97)	$ (69)	$ (141)
Net carrying value of mortgage loans	$ 47,547	$ 47,487
Mortgage Loans Receivable \| Credit Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	100.00%	100.00%
Mortgage Loans Receivable \| Geographic Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	100.00%	100.00%
Mortgage Loans Receivable \| Geographic Concentration Risk \| West South Central
Schedule Of Investments [Line Items]
Fixed maturities portfolio	24.90%	25.30%
Mortgage Loans Receivable \| Geographic Concentration Risk \| East North Central
Schedule Of Investments [Line Items]
Fixed maturities portfolio	27.10%	26.30%
Mortgage Loans Receivable \| Geographic Concentration Risk \| South Atlantic
Schedule Of Investments [Line Items]
Fixed maturities portfolio	20.10%	19.60%
Mortgage Loans Receivable \| Geographic Concentration Risk \| West North Central
Schedule Of Investments [Line Items]
Fixed maturities portfolio	7.00%	6.40%
Mortgage Loans Receivable \| Geographic Concentration Risk \| Mountain
Schedule Of Investments [Line Items]
Fixed maturities portfolio	6.40%	7.10%
Mortgage Loans Receivable \| Geographic Concentration Risk \| Middle Atlantic
Schedule Of Investments [Line Items]
Fixed maturities portfolio	4.90%	5.00%
Mortgage Loans Receivable \| Geographic Concentration Risk \| East South Central
Schedule Of Investments [Line Items]
Fixed maturities portfolio	7.50%	7.20%
Mortgage Loans Receivable \| Geographic Concentration Risk \| New England
Schedule Of Investments [Line Items]
Fixed maturities portfolio	0.20%	0.20%
Mortgage Loans Receivable \| Geographic Concentration Risk \| Pacific
Schedule Of Investments [Line Items]
Fixed maturities portfolio	1.90%	2.90%
Mortgage Loans
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 47,644	$ 47,556
Valuation allowance	(97)	(69)
Net carrying value of mortgage loans	47,547	47,487
Mortgage Loans \| West South Central
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	11,797	12,017
Mortgage Loans \| East North Central
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	12,931	12,439
Mortgage Loans \| South Atlantic
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	9,590	9,337
Mortgage Loans \| West North Central
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	3,334	3,065
Mortgage Loans \| Mountain
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	3,044	3,393
Mortgage Loans \| Middle Atlantic
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	2,352	2,392
Mortgage Loans \| East South Central
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	3,594	3,445
Mortgage Loans \| New England
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	77	82
Mortgage Loans \| Pacific
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 925	$ 1,386
Retail \| Mortgage Loans Receivable \| Credit Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	31.10%	32.10%
Retail \| Mortgage Loans
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 14,855	$ 15,257
Office \| Mortgage Loans Receivable \| Credit Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	24.20%	24.40%
Office \| Mortgage Loans
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 11,525	$ 11,627
Industrial \| Mortgage Loans Receivable \| Credit Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	18.60%	17.30%
Industrial \| Mortgage Loans
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 8,848	$ 8,234
Mixed Use \| Mortgage Loans Receivable \| Credit Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	11.30%	11.20%
Mixed Use \| Mortgage Loans
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 5,367	$ 5,327
Apartments \| Mortgage Loans Receivable \| Credit Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	6.30%	6.10%
Apartments \| Mortgage Loans
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 2,999	$ 2,880
Medical Office \| Mortgage Loans Receivable \| Credit Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	6.50%	6.50%
Medical Office \| Mortgage Loans
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 3,120	$ 3,078
Other \| Mortgage Loans Receivable \| Credit Concentration Risk
Schedule Of Investments [Line Items]
Fixed maturities portfolio	2.00%	2.40%
Other \| Mortgage Loans
Schedule Of Investments [Line Items]
Gross carrying value of mortgage loans	$ 930	$ 1,153