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Current Fair Value of Debt (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Debt |  | $ 0 | $ 126,430 |
Debt, fair value |  | 0 | 129,238 |
7.875% Subordinated Notes due 2047 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Debt | [1] | 0 | 126,430 | [2]
Debt, fair value | [1] | $ 0 | $ 129,238 |
[1] | As of December 31, 2021, the carrying value and fair value of the 7.875% Subordinated Notes due 2047 are net of unamortized debt issuance cost of $3.6 million. In April 2022, the Company redeemed all of its outstanding 7.875% subordinated notes due 2047 and unamortized debt issuance cost of $3.5 million was written off and included in the consolidated statements of operations as loss on extinguishment of debt.
[2] | Amounts outstanding at December 31, 2021 represent outstanding principal of $130.0 million, net of unamortized debt costs of $3.6 million

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