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Covered Loans Acquired in Acquisitions of AmTrust Bank ("Am Trust") and Desert Hills (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Jul. 28, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Covered loans | $ 0 | $ 0 | $ 1,698,133
Covered loans held for sale |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Covered loans |  |  | $ 1,698,133
Percent of Covered Loans |  |  | 100.00%
One-to-four family | Covered loans held for sale |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Covered loans |  |  | $ 1,609,635
Percent of Covered Loans |  |  | 94.80%
Other loans | Covered loans held for sale |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Covered loans |  |  | $ 88,498
Percent of Covered Loans |  |  | 5.20%

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- Definition Percentage of Covered Loans + References No definition available. + Details
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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 Aggregate gross carrying amount of loans and leases receivable covered by loss sharing agreements. + References No definition available. + Details
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- Details
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- Details
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- Details
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