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Income Taxes - Summary of Components of Deferred and Other Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |  |
Goodwill and other intangibles |  | $ (44,799) | $ (45,595)
Provision for loan losses |  | 19,556 | 19,198
Net operating loss carryforwards | [1] | 30,493 | 22,607
Accrued expenses, compensation, and other assets |  | 1,174 | 1,701
Unrealized gains on other investments |  | (6,769) | (6,790)
Total deferred tax liability |  | (345) | (8,879)
Valuation allowance |  | (462) | (462)
Deferred tax liability, net |  | (807) | (9,341)
Taxes receivable |  | 1,757 | 1,516
Net deferred and other tax liabilities |  | $ 950 | $ (7,825)
[1] | As of December 31, 2020, the Company and its subsidiaries had an estimated $124,150 of net operating loss carryforwards, $1,712 which expires at various dates between December 31, 2026 and December 31, 2035, and which had a net asset value of $30,031 as of December 31, 2020.

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