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Loans Receivable, Net - Summary of Impaired Loans Excluding PCI Loans (Detail) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
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Receivables [Abstract] |  |  |
Impaired loans with no allocated allowance for loan losses | $ 29,797 | $ 46,988 |
Impaired loans with allocated allowance for loan losses | 0 | 0 |
Total | 29,800 | 47,000 |
Amount of the allowance for loan losses allocated | 0 |  |
Specific Reserves On Nonaccrual Troubled Debt Restructurings | $ 0 | $ 0 | $ 510

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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
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- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
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