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Business Combinations (Detail) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Nov. 15, 2021 USD ($) loan | Mar. 31, 2022 USD ($)
Business Acquisition [Line Items] |  |
Goodwill recorded on acquisition |  | $ 0
Allstate Corporation Loan Portfolio |  |
Business Acquisition [Line Items] |  |
Loans purchased | $ 581,600 |
Number of loans purchased | loan | 1,800 |
Goodwill recorded on acquisition | $ 9,300 |

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