XML 28 R71.htm IDEA: XBRL DOCUMENT
v3.20.1

Loan Servicing - Unpaid Principal Balance of Serviced Mortgage Loans for Others (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Balance, end of period | $ 118,818 | $ 139,303
Mortgage loans sold to Federal Home Loan Mortgage Corporation without recourse |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Balance, end of period | 3,723 | 4,438
Mortgage loans sold to Federal National Mortgage Association without recourse |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Balance, end of period | 114,895 | 134,550
Mortgage loans sold to Federal Home Loan Bank without recourse |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Balance, end of period | $ 200 | $ 315

X
- 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
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column G)) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
Name: | us-gaap_MortgageLoansOnRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_FederalHomeLoanMortgageCorporationCertificatesAndObligationsFHLMCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_FederalNationalMortgageAssociationCertificatesAndObligationsFNMAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_FederalHomeLoanBankCertificatesAndObligationsFHLBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |