XML 84 R73.htm IDEA: XBRL DOCUMENT
v3.20.2

Allowance for Credit Losses - Roll Forward Of the Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Allowance for loan losses: |  |  |  |  |
Beginning balance | $ 145,387 | $ 50,059 | $ 52,162 | $ 49,026 | $ 49,026
Accounting standards update [Extensible List] |  |  | us-gaap:AccountingStandardsUpdate201613Member |  | us-gaap:AccountingStandardsUpdate201613Member
Charge-offs | (3,576) | (4,965) | $ (12,491) | (7,953) |
Recoveries | 3,187 | 4,020 | 9,593 | 5,641 |
Net (charge-offs) recoveries | (389) | (945) | (2,898) | (2,312) |
Provision for credit losses on loans | 23,100 | 1,700 | 76,350 | 4,100 |
Ending balance | 168,098 | 50,814 | 168,098 | 50,814 | $ 52,162
Individually evaluated | 11,136 | 2,045 | 11,136 | 2,045 |
Collectively evaluated | 156,962 | 46,221 | 156,962 | 46,221 |
Loans: |  |  |  |  |
Individually evaluated | 29,602 |  | 29,602 |  | 51,179
Collectively evaluated | 11,055,136 |  | 11,055,136 |  | 9,466,195
Gross loans | 11,084,738 |  | 11,084,738 |  | 9,689,638
Nonaccruing loans with no allowance for credit losses | 8,380 |  | 8,380 |  |
Purchased with deteriorated credit quality |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending balance |  | 2,548 |  | 2,548 |
Loans: |  |  |  |  |
Gross loans |  |  |  |  | 172,264
Commercial, financial, agricultural |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 30,685 | 9,534 | 10,658 | 8,269 | 8,269
Charge-offs | (420) | (757) | (1,969) | (1,709) |
Recoveries | 698 | 761 | 996 | 1,376 |
Net (charge-offs) recoveries | 278 | 4 | (973) | (333) |
Provision for credit losses on loans | 7,232 | 750 | 17,159 | 2,352 |
Ending balance | 38,195 | 10,288 | 38,195 | 10,288 | 10,658
Individually evaluated | 10,211 | 1,382 | 10,211 | 1,382 |
Collectively evaluated | 27,984 | 8,778 | 27,984 | 8,778 |
Loans: |  |  |  |  |
Individually evaluated | 17,670 |  | 17,670 |  | 8,460
Collectively evaluated | 2,630,392 |  | 2,630,392 |  | 1,329,974
Gross loans | 2,648,062 |  | 2,648,062 |  | 1,367,972
Nonaccruing loans with no allowance for credit losses | 589 |  | 589 |  |
Commercial, financial, agricultural | Purchased with deteriorated credit quality |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending balance |  | 128 |  | 128 |
Loans: |  |  |  |  |
Gross loans |  |  |  |  | 29,538
Real estate – construction: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 12,538 | 5,302 | 5,029 | 4,755 | 4,755
Charge-offs | (136) | 0 | (668) | 0 |
Recoveries | 31 | 0 | 31 | 7 |
Net (charge-offs) recoveries | (105) | 0 | (637) | 7 |
Provision for credit losses on loans | 1,386 | (175) | 5,922 | 365 |
Ending balance | 13,819 | 5,127 | 13,819 | 5,127 | 5,029
Individually evaluated | 0 | 24 | 0 | 24 |
Collectively evaluated | 13,819 | 5,103 | 13,819 | 5,103 |
Loans: |  |  |  |  |
Individually evaluated | 0 |  | 0 |  | 12,416
Collectively evaluated | 773,119 |  | 773,119 |  | 813,204
Gross loans | 773,119 |  | 773,119 |  | 826,483
Nonaccruing loans with no allowance for credit losses | 0 |  | 0 |  |
Real estate – construction: | Purchased with deteriorated credit quality |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending balance |  | 0 |  | 0 |
Loans: |  |  |  |  |
Gross loans |  |  |  |  | 863
Real estate – 1-4 family mortgage |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 29,401 | 9,616 | 9,814 | 10,139 | 10,139
Charge-offs | (720) | (268) | (1,083) | (1,143) |
Recoveries | 152 | 219 | 288 | 531 |
Net (charge-offs) recoveries | (568) | (49) | (795) | (612) |
Provision for credit losses on loans | 3,872 | 282 | 9,372 | 322 |
Ending balance | 32,705 | 9,849 | 32,705 | 9,849 | 9,814
Individually evaluated | 275 | 186 | 275 | 186 |
Collectively evaluated | 32,430 | 9,313 | 32,430 | 9,313 |
Loans: |  |  |  |  |
Individually evaluated | 4,718 |  | 4,718 |  | 20,262
Collectively evaluated | 2,755,676 |  | 2,755,676 |  | 2,810,808
Gross loans | 2,760,394 |  | 2,760,394 |  | 2,866,613
Nonaccruing loans with no allowance for credit losses | 4,147 |  | 4,147 |  |
Real estate – 1-4 family mortgage | Purchased with deteriorated credit quality |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending balance |  | 350 |  | 350 |
Loans: |  |  |  |  |
Gross loans |  |  |  |  | 35,543
Real estate – commercial mortgage: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 60,061 | 24,302 | 24,990 | 24,492 | 24,492
Charge-offs | (553) | (677) | (2,600) | (1,406) |
Recoveries | 711 | 33 | 2,451 | 644 |
Net (charge-offs) recoveries | 158 | (644) | (149) | (762) |
Provision for credit losses on loans | 10,363 | 381 | 41,448 | 309 |
Ending balance | 70,582 | 24,039 | 70,582 | 24,039 | 24,990
Individually evaluated | 380 | 450 | 380 | 450 |
Collectively evaluated | 70,202 | 21,521 | 70,202 | 21,521 |
Loans: |  |  |  |  |
Individually evaluated | 6,596 |  | 6,596 |  | 9,550
Collectively evaluated | 4,570,413 |  | 4,570,413 |  | 4,131,582
Gross loans | 4,577,009 |  | 4,577,009 |  | 4,244,265
Nonaccruing loans with no allowance for credit losses | 3,644 |  | 3,644 |  |
Real estate – commercial mortgage: | Purchased with deteriorated credit quality |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending balance |  | 2,068 |  | 2,068 |
Loans: |  |  |  |  |
Gross loans |  |  |  |  | 103,133
Lease financing |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 1,812 |  | 910 |  |
Charge-offs | (168) |  | (168) |  |
Recoveries | 1 |  | 11 |  |
Net (charge-offs) recoveries | (167) |  | (157) |  |
Provision for credit losses on loans | 187 |  | 558 |  |
Ending balance | 1,832 |  | 1,832 |  | 910
Individually evaluated | 0 |  | 0 |  |
Collectively evaluated | 1,832 |  | 1,832 |  |
Loans: |  |  |  |  |
Individually evaluated | 0 |  | 0 |  |
Collectively evaluated | 82,928 |  | 82,928 |  |
Gross loans | 82,928 |  | 82,928 |  |
Nonaccruing loans with no allowance for credit losses | 0 |  | 0 |  |
Installment and Other |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 10,890 | 1,305 | 761 | 1,371 | 1,371
Charge-offs | (1,579) | (3,263) | (6,003) | (3,695) |
Recoveries | 1,594 | 3,007 | 5,816 | 3,083 |
Net (charge-offs) recoveries | 15 | (256) | (187) | (612) |
Provision for credit losses on loans | 60 | 462 | 1,891 | 752 |
Ending balance | 10,965 | 1,511 | 10,965 | 1,511 | 761
Individually evaluated | 270 | 3 | 270 | 3 |
Collectively evaluated | 10,695 | 1,506 | 10,695 | 1,506 |
Loans: |  |  |  |  |
Individually evaluated | 618 |  | 618 |  | 491
Collectively evaluated | 242,608 |  | 242,608 |  | 380,627
Gross loans | 243,226 |  | 243,226 |  | 384,305
Nonaccruing loans with no allowance for credit losses | $ 0 |  | 0 |  |
Installment and Other | Purchased with deteriorated credit quality |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending balance |  | $ 2 |  | $ 2 |
Loans: |  |  |  |  |
Gross loans |  |  |  |  | 3,187
Cumulative Effect, Period Of Adoption, Adjustment |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 42,484 |  |
Ending balance |  |  |  |  | 42,484
Cumulative Effect, Period Of Adoption, Adjustment | Commercial, financial, agricultural |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 11,351 |  |
Ending balance |  |  |  |  | 11,351
Cumulative Effect, Period Of Adoption, Adjustment | Real estate – construction: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 3,505 |  |
Ending balance |  |  |  |  | 3,505
Cumulative Effect, Period Of Adoption, Adjustment | Real estate – 1-4 family mortgage |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 14,314 |  |
Ending balance |  |  |  |  | 14,314
Cumulative Effect, Period Of Adoption, Adjustment | Real estate – commercial mortgage: |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 4,293 |  |
Ending balance |  |  |  |  | 4,293
Cumulative Effect, Period Of Adoption, Adjustment | Lease financing |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | 521 |  |
Ending balance |  |  |  |  | 521
Cumulative Effect, Period Of Adoption, Adjustment | Installment and Other |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance |  |  | $ 8,500 |  |
Ending balance |  |  |  |  | $ 8,500

X
- Definition Indicates amendment to accounting standards. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(i) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (e)(3) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(iv) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(iii) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 24: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (e)(4) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(ii) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 65 -Paragraph 8 -Subparagraph (d)(2) Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 65 -Paragraph 8 -Subparagraph (d)(3) + Details
Name: | us-gaap_AccountingStandardsUpdateExtensibleList
Namespace Prefix: | us-gaap_
Data Type: | srt-types:extensibleListItemType
Balance Type: | na
Period Type: | duration

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 http://asc.fasb.org/extlink&oid=121599337&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 http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 + 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 http://asc.fasb.org/extlink&oid=121611835&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 http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + 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 http://asc.fasb.org/extlink&oid=121611835&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 http://asc.fasb.org/extlink&oid=121611835&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 http://asc.fasb.org/extlink&oid=121647567&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 http://asc.fasb.org/extlink&oid=121599337&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 http://asc.fasb.org/extlink&oid=121611835&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 http://asc.fasb.org/extlink&oid=121599337&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 http://asc.fasb.org/extlink&oid=121611835&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 http://asc.fasb.org/extlink&oid=121647567&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 http://asc.fasb.org/extlink&oid=121611835&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 http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable on nonaccrual status with no 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 16 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableNonaccrualNoAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allowance for credit loss, of financing receivable. + 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 http://asc.fasb.org/extlink&oid=121647567&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 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + 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 http://asc.fasb.org/extlink&oid=121599337&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 http://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_CreditLossStatusAxis=us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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: |