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Information Regarding Troubled Debt Restructurings (Detail) - Non-Covered Loans - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | $ 46,389 | $ 45,556
Multi-Family |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 8,427 | 8,885
Commercial Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 365 | 368
One-to-four family |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 1,053 | 1,066
Acquisition, Development and Construction |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 9,552 | 8,652
Commercial and Industrial |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 26,992 | 26,585
Accruing |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 10,372 | 9,653
Accruing | Multi-Family |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 820 | 824
Accruing | Acquisition, Development and Construction |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 9,552 | 8,652
Accruing | Commercial and Industrial |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings |  | 177
Non-Accrual |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 36,017 | 35,903
Non-Accrual | Multi-Family |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 7,607 | 8,061
Non-Accrual | Commercial Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 365 | 368
Non-Accrual | One-to-four family |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | 1,053 | 1,066
Non-Accrual | Commercial and Industrial |  |
Financing Receivable, Modifications [Line Items] |  |
Troubled debt restructurings | $ 26,992 | $ 26,408

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554 + Details
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