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Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Annuity Deposits (Net of Coinsurance), By Product Type Annuity deposits (net of coinsurance) collected in 2022, 2021 and 2020, by product type were as follows:
Year Ended December 31,
Product Type202220212020
(Dollars in thousands)
Fixed index annuities$2,202,688 $3,026,211 $2,309,580 
Annual reset fixed rate annuities5,535 6,000 7,846 
Multi-year fixed rate annuities139,092 2,452,994 1,295,843 
Single premium immediate annuities (SPIA)18,935 59,816 33,461 
$2,366,250 $5,545,021 $3,646,730