Long-Term Debt - Estimate of Principal Payments to be Made for the Amount Due on the Surplus Note (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
2023	$ 1,471
2024	1,471
2025	1,471
2026	101,102
2027	0
Thereafter	0
Total long-term debt maturities	105,515	$ 106,985
Less: unamortized debt issuance costs	(2,746)	(3,309)
Total long-term debt maturities, net	$ 102,769	$ 103,676

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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