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Commitments And Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2019
Commitments And Contingencies [Abstract] |
Summary Of Estimated Cost To Replace Annuities For Contingent Liability |
| At December 31,
(Dollars in thousands) | 2019 |  | 2018
The Prudential | $ | 141,703 |  | $ | 142,754
Unaffiliated life insurance company |  | 35,082 |  |  | 34,717

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