XML 166 R148.htm IDEA: XBRL DOCUMENT
v3.20.4

Regulatory Matters - Capital Tier Classifications (Details) | Dec. 31, 2020
--- | ---
Mortgage Banking [Abstract] |
Tier one leverage capital required to be well capitalized to average assets | 0.05
Tier one leverage capital required to be well capitalized to average assets | 6.50%
Tier one risk based capital required to be well capitalized to risk weighted assets | 0.08
Capital required to be well capitalized to risk weighted assets | 0.10
Tier one leverage capital required for capital adequacy to average assets | 0.04
Tier one leverage capital required for capital adequacy to average assets | 4.50%
Tier one risk based capital required for capital adequacy to risk weighted assets | 0.06
Capital required for capital adequacy to risk weighted assets | 0.08
Tier one leverage capital required to be undercapitalized to average assets | 4.00%
Tier one leverage capital required to be undercapitalized to average assets | 4.50%
Tier one risk based capital required to be undercapitalized to risk weighted assets | 6.00%
Capital required to be undercapitalized to risk weighted assets | 8.00%
Tier one leverage capital required to be significantly undercapitalized to average assets | 3.00%
Tier one leverage capital required to be significantly undercapitalized to average assets | 3.00%
Tier one risk based capital required to be significantly undercapitalized to risk weighted assets | 4.00%
Capital required to be significantly undercapitalized to risk weighted assets | 6.00%
Tangible capital required to be critically undercapitalized to total assets | 2.00%

X
- Definition Capital Required to be Significantly Undercapitalized to Risk Weighted Assets + References No definition available. + Details
Name: | rnst_CapitalRequiredtobeSignificantlyUndercapitalizedtoRiskWeightedAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Capital Required to be Undercapitalized to Risk Weighted Assets + References No definition available. + Details
Name: | rnst_CapitalRequiredtobeUndercapitalizedtoRiskWeightedAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Equity Tier One Leverage Capital Required For Capital Adequacy To Average Assets + References No definition available. + Details
Name: | rnst_CommonEquityTierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Equity Tier One Leverage Capital Required To Be Significantly Undercapitalized to Average Assets + References No definition available. + Details
Name: | rnst_CommonEquityTierOneLeverageCapitalRequiredToBeSignificantlyUndercapitalizedtoAverageAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Equity Tier One Leverage Capital Required To Be Undercapitalized To Average Assets + References No definition available. + Details
Name: | rnst_CommonEquityTierOneLeverageCapitalRequiredToBeUndercapitalizedToAverageAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Equity Tier One Leverage Capital To Average Assets + References No definition available. + Details
Name: | rnst_CommonEquityTierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tangible Capital Required to be Critically Undercapitalized to Total Assets + References No definition available. + Details
Name: | rnst_TangibleCapitalRequiredtobeCriticallyUndercapitalizedtoTotalAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tier One Leverage Capital Required to be Significantly Undercapitalized to Average Assets + References No definition available. + Details
Name: | rnst_TierOneLeverageCapitalRequiredtobeSignificantlyUndercapitalizedtoAverageAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tier One Leverage Capital Required to be Undercapitalized to Average Assets + References No definition available. + Details
Name: | rnst_TierOneLeverageCapitalRequiredtobeUndercapitalizedtoAverageAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tier One Risk Based Capital Required to be Significantly Undercapitalized to Risk Weighted Assets + References No definition available. + Details
Name: | rnst_TierOneRiskBasedCapitalRequiredtobeSignificantlyUndercapitalizedtoRiskWeightedAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tier One Risk Based Capital Required to be Undercapitalized to Risk Weighted Assets + References No definition available. + Details
Name: | rnst_TierOneRiskBasedCapitalRequiredtobeUndercapitalizedtoRiskWeightedAssets
Namespace Prefix: | rnst_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
Name: | us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of minimum total risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
Name: | us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Ratio of minimum Tier 1 leverage capital to average assets required for capital adequacy as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
Name: | us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of minimum Tier 1 leverage capital to average assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
Name: | us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of minimum Tier 1 risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
Name: | us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of minimum Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
Name: | us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant