XML 72 R62.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Allowance for Credit Losses - Roll Forward Of the Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Allowance for loan losses: |  |  |  |  |
Beginning balance | $ 166,131 | $ 172,354 | $ 164,171 | $ 176,144 |
Charge-offs | (3,259) | (2,979) | (10,274) | (11,203) |
Recoveries | 1,684 | 1,863 | 5,511 | 6,297 |
Net (charge-offs) recoveries | (1,575) | (1,116) | (4,763) | (4,906) |
Provision for (recovery of provision for) credit losses on loans | 9,800 | (1,200) | 13,300 | (1,200) |
Ending balance | 174,356 | 170,038 | 174,356 | 170,038 |
Individually evaluated | 7,083 | 16,498 | 7,083 | 16,498 |
Collectively evaluated | 167,273 | 153,540 | 167,273 | 153,540 |
Loans: |  |  |  |  |
Individually evaluated | 34,619 | 40,241 | 34,619 | 40,241 |
Collectively evaluated | 11,070,385 | 9,976,583 | 11,070,385 | 9,976,583 |
Loans, net of unearned income | 11,105,004 | 10,016,824 | 11,105,004 | 10,016,824 | $ 10,020,914
Nonaccruing loans with no allowance for credit losses | 11,026 | 8,572 | 11,026 | 8,572 |
Commercial, financial, agricultural |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 30,193 | 36,994 | 33,922 | 39,031 |
Charge-offs | (373) | (1,225) | (4,714) | (5,907) |
Recoveries | 415 | 418 | 1,982 | 940 |
Net (charge-offs) recoveries | 42 | (807) | (2,732) | (4,967) |
Provision for (recovery of provision for) credit losses on loans | 268 | (1,210) | (2,335) | 913 |
Ending balance | 30,503 | 34,977 | 30,503 | 34,977 |
Individually evaluated | 4,064 | 9,717 | 4,064 | 9,717 |
Collectively evaluated | 26,439 | 25,260 | 26,439 | 25,260 |
Loans: |  |  |  |  |
Individually evaluated | 9,088 | 15,193 | 9,088 | 15,193 |
Collectively evaluated | 1,504,003 | 1,420,826 | 1,504,003 | 1,420,826 |
Loans, net of unearned income | 1,513,091 | 1,436,019 | 1,513,091 | 1,436,019 |
Nonaccruing loans with no allowance for credit losses | 429 | 2,658 | 429 | 2,658 |
Real estate – construction: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 17,290 | 15,729 | 16,419 | 16,047 |
Charge-offs | 0 | 0 | 0 | (52) |
Recoveries | 0 | 0 | 0 | 13 |
Net (charge-offs) recoveries | 0 | 0 | 0 | (39) |
Provision for (recovery of provision for) credit losses on loans | 1,454 | 440 | 2,325 | 161 |
Ending balance | 18,744 | 16,169 | 18,744 | 16,169 |
Individually evaluated | 0 | 0 | 0 | 0 |
Collectively evaluated | 18,744 | 16,169 | 18,744 | 16,169 |
Loans: |  |  |  |  |
Individually evaluated | 153 | 0 | 153 | 0 |
Collectively evaluated | 1,214,903 | 1,091,296 | 1,214,903 | 1,091,296 |
Loans, net of unearned income | 1,215,056 | 1,091,296 | 1,215,056 | 1,091,296 |
Nonaccruing loans with no allowance for credit losses | 153 | 0 | 153 | 0 |
Real estate – 1-4 family mortgage: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 41,910 | 31,303 | 32,356 | 32,165 |
Charge-offs | (208) | (276) | (532) | (529) |
Recoveries | 378 | 193 | 725 | 855 |
Net (charge-offs) recoveries | 170 | (83) | 193 | 326 |
Provision for (recovery of provision for) credit losses on loans | 1,452 | 961 | 10,983 | (310) |
Ending balance | 43,532 | 32,181 | 43,532 | 32,181 |
Individually evaluated | 0 | 206 | 0 | 206 |
Collectively evaluated | 43,532 | 31,975 | 43,532 | 31,975 |
Loans: |  |  |  |  |
Individually evaluated | 5,965 | 5,311 | 5,965 | 5,311 |
Collectively evaluated | 3,121,924 | 2,719,432 | 3,121,924 | 2,719,432 |
Loans, net of unearned income | 3,127,889 | 2,724,743 | 3,127,889 | 2,724,743 |
Nonaccruing loans with no allowance for credit losses | 5,809 | 3,039 | 5,809 | 3,039 |
Real estate – commercial mortgage: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 64,373 | 74,893 | 68,940 | 76,127 |
Charge-offs | (1,956) | (184) | (2,670) | (416) |
Recoveries | 50 | 190 | 397 | 504 |
Net (charge-offs) recoveries | (1,906) | 6 | (2,273) | 88 |
Provision for (recovery of provision for) credit losses on loans | 6,800 | (1,004) | 2,600 | (2,320) |
Ending balance | 69,267 | 73,895 | 69,267 | 73,895 |
Individually evaluated | 2,649 | 5,968 | 2,649 | 5,968 |
Collectively evaluated | 66,618 | 67,927 | 66,618 | 67,927 |
Loans: |  |  |  |  |
Individually evaluated | 19,043 | 19,120 | 19,043 | 19,120 |
Collectively evaluated | 4,997,622 | 4,516,610 | 4,997,622 | 4,516,610 |
Loans, net of unearned income | 5,016,665 | 4,535,730 | 5,016,665 | 4,535,730 |
Nonaccruing loans with no allowance for credit losses | 4,633 | 2,865 | 4,633 | 2,865 |
Lease financing |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 1,802 | 1,511 | 1,486 | 1,624 |
Charge-offs | 0 | (13) | (7) | (13) |
Recoveries | 113 | 11 | 136 | 36 |
Net (charge-offs) recoveries | 113 | (2) | 129 | 23 |
Provision for (recovery of provision for) credit losses on loans | 399 | 61 | 699 | (77) |
Ending balance | 2,314 | 1,570 | 2,314 | 1,570 |
Individually evaluated | 0 | 0 | 0 | 0 |
Collectively evaluated | 2,314 | 1,570 | 2,314 | 1,570 |
Loans: |  |  |  |  |
Individually evaluated | 0 | 0 | 0 | 0 |
Collectively evaluated | 103,357 | 79,215 | 103,357 | 79,215 |
Loans, net of unearned income | 103,357 | 79,215 | 103,357 | 79,215 |
Nonaccruing loans with no allowance for credit losses | 0 | 0 | 0 | 0 |
Installment Loans to Individuals |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 10,563 | 11,924 | 11,048 | 11,150 |
Charge-offs | (722) | (1,281) | (2,351) | (4,286) |
Recoveries | 728 | 1,051 | 2,271 | 3,949 |
Net (charge-offs) recoveries | 6 | (230) | (80) | (337) |
Provision for (recovery of provision for) credit losses on loans | (573) | (448) | (972) | 433 |
Ending balance | 9,996 | 11,246 | 9,996 | 11,246 |
Individually evaluated | 370 | 607 | 370 | 607 |
Collectively evaluated | 9,626 | 10,639 | 9,626 | 10,639 |
Loans: |  |  |  |  |
Individually evaluated | 370 | 617 | 370 | 617 |
Collectively evaluated | 128,576 | 149,204 | 128,576 | 149,204 |
Loans, net of unearned income | 128,946 | 149,821 | 128,946 | 149,821 |
Nonaccruing loans with no allowance for credit losses | $ 2 | $ 10 | 2 | $ 10 |
Cumulative Effect, Period Of Adoption, Adjustment |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 1,648 |  |
Cumulative Effect, Period Of Adoption, Adjustment | Commercial, financial, agricultural |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 1,648 |  |
Cumulative Effect, Period Of Adoption, Adjustment | Real estate – construction: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 0 |  |
Cumulative Effect, Period Of Adoption, Adjustment | Real estate – 1-4 family mortgage: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 0 |  |
Cumulative Effect, Period Of Adoption, Adjustment | Real estate – commercial mortgage: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 0 |  |
Cumulative Effect, Period Of Adoption, Adjustment | Lease financing |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 0 |  |
Cumulative Effect, Period Of Adoption, Adjustment | Installment Loans to Individuals |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | $ 0 |  |

X
- Definition Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (4) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableNonaccrualNoAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953401-111524 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922355-210448 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1404 -Paragraph (a) + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Amount of credit loss expense (reversal of expense) for financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
Name: | us-gaap_ProvisionForLoanLossesExpensed
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rnst_RealEstateOneToFourFamilyMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rnst_CommercialResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rnst_LeaseFinancingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rnst_InstallmentLoansToIndividualsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |