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Information Regarding Troubled Debt Restructurings (Detail) - Non-Covered Loans - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	$ 40,113	$ 45,556
Multi-Family
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	5,814	8,885
Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings		368
One-to-four family
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	1,033	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	23,714	26,585
Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	10,364	9,653
Accruing | Multi-Family
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	812	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	29,749	35,903
Non-Accrual | Multi-Family
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	5,002	8,061
Non-Accrual | Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings		368
Non-Accrual | One-to-four family
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	1,033	1,066
Non-Accrual | Commercial and Industrial
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	$ 23,714	$ 26,408

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- Definition

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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://fasb.org/us-gaap/role/ref/legacyRef
-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

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