XML 153 R131.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Restrictions on Cash, Securities, Bank Dividends, Loans or Advances (Details) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Mar. 26, 2020 USD ($)
--- | --- | --- | ---
Regulated Operations [Abstract] |  |  |
Reserve requirements with federal reserve |  |  | $ 0
FHLB stock | $ 20,003,000 | $ 36,079,000 |
FHLB required investment amount | $ 19,098,000 | $ 35,417,000 |
Regulatory restrictions on payments of dividends, excess surplus ratio | 10 |  |
Amount transferable loans maximum | $ 188,810,000 |  |
Line of credit collateralized by cash | 3,000,000 |  |
Company borrowings | $ 0 |  |

X
- Definition Amount transferable loans maximum. + References No definition available. + Details
Name: | rnst_AmountTransferableLoansMaximum
Namespace Prefix: | rnst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Federal Home Loan Bank Stock, Required Investment Amount + References No definition available. + Details
Name: | rnst_FederalHomeLoanBankStockRequiredInvestmentAmount
Namespace Prefix: | rnst_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Inter company borrowed funds. + References No definition available. + Details
Name: | rnst_InterCompanyBorrowedFunds
Namespace Prefix: | rnst_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line of Credit, Collateralized by Cash + References No definition available. + Details
Name: | rnst_LineOfCreditCollateralizedByCash
Namespace Prefix: | rnst_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Regulatory Restrictions on Payment of Dividends, Excess Surplus, Ratio + References No definition available. + Details
Name: | rnst_RegulatoryRestrictionsonPaymentofDividendsExcessSurplusRatio
Namespace Prefix: | rnst_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Reserve requirements with federal reserve. + References No definition available. + Details
Name: | rnst_ReserveRequirementsWithFederalReserve
Namespace Prefix: | rnst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 325 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481026/942-325-45-1 + Details
Name: | us-gaap_FederalHomeLoanBankStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_RegulatedOperationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration