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Deferred Policy Acquisition Costs, Deferred Sales Inducements and Liability for Lifetime Income Benefit Riders (Tables)
12 Months Ended
Dec. 31, 2022
Insurance [Abstract]  
Rollforward of Deferred Policy Acquisition Costs
Policy acquisition costs deferred and amortized are as follows:
December 31,
202220212020
(Dollars in thousands)
Balance at beginning of year$2,222,769 $2,225,199 $3,033,649 
Costs deferred during the year:
Commissions194,856 303,192 251,428 
Policy issue costs3,767 4,665 3,725 
Amortization:
Amortization(558,447)(313,990)(2,769)
Impact of unlocking(56,853)45,662 (646,785)
Effect of net unrealized gains/losses1,944,039 299,478 (414,049)
Write-off related to in-force ceded reinsurance(188,056)(341,437)— 
Balance at end of year$3,562,075 $2,222,769 $2,225,199 
Rollforward of Deferred Sales Inducements
Sales inducements deferred and amortized are as follows:
December 31,
202220212020
(Dollars in thousands)
Balance at beginning of year$1,546,073 $1,448,375 $2,042,060 
Costs deferred during the year107,691 95,160 93,610 
Amortization:
Amortization(362,866)(197,799)(10,063)
Impact of unlocking(45,682)45,107 (428,101)
Effect of net unrealized gains/losses1,348,134 155,230 (249,131)
Balance at end of year$2,593,350 $1,546,073 $1,448,375 
Rollforward of Liability for Lifetime Income Benefit Riders (Net of Coinsurance Ceded)
The following table presents a rollforward of the liability for lifetime income benefit riders (net of coinsurance ceded):
December 31,
202220212020
(Dollars in thousands)
Balance at beginning of year$2,794,629 $2,485,123 $1,670,750 
Benefit expense accrual387,821 206,180 311,211 
Impact of unlocking(53,042)243,658 285,825 
Effect of net unrealized gains/losses(996,876)(101,848)217,337 
Reduction related to in-force ceded reinsurance(403,406)(38,484)— 
Claim payments— — — 
Balance at end of year$1,729,126 $2,794,629 $2,485,123