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Information Regarding Troubled Debt Restructurings (Detail) - Non-Covered Loans - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | $ 43,333 | $ 34,881
Multi-Family |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 3,741 | 4,220
Commercial Real Estate |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 0 | 0
One-to-four family |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 891 | 1,022
Acquisition, development, and construction |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 2,349 | 8,297
Commercial and Industrial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings | [1] | 36,352 | 21,342
Accruing |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 3,214 | 9,162
Accruing | Multi-Family |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 0 | 0
Accruing | Commercial Real Estate |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 0 | 0
Accruing | One-to-four family |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 0 | 0
Accruing | Acquisition, development, and construction |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 2,349 | 8,297
Accruing | Commercial and Industrial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings | [1] | 865 | 865
Non-Accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 40,119 | 25,719
Non-Accrual | Multi-Family |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 3,741 | 4,220
Non-Accrual | Commercial Real Estate |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 0 | 0
Non-Accrual | One-to-four family |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 891 | 1,022
Non-Accrual | Acquisition, development, and construction |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 0 | 0
Non-Accrual | Commercial and Industrial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructurings | [1] | $ 35,487 | $ 20,477
[1] | Includes $27.4 million and $20.4 million of taxi medallion-related loans at September 30, 2019 and December 31, 2018, respectively.

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