XML 118 R107.htm IDEA: XBRL DOCUMENT v3.10.0.1

Fair Value Measurements - OREO Measured at Fair Value on a Nonrecurring Basis (Details) - Level 3 - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
OREO measured at fair value on a nonrecurring basis
Carrying amount prior to remeasurement	$ 4,989	$ 8,732
Impairment recognized in results of operations	(827)	(1,340)
Fair value	$ 4,162	$ 7,392

X

- Definition

Other Real Estate, Non Covered, Carrying Amount

+ References

No definition available.

+ Details

Name:	rnst_OtherRealEstateNonCoveredCarryingAmount
Namespace Prefix:	rnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Other Real Estate, Non Covered, Impairment Recognized

+ References

No definition available.

+ Details

Name:	rnst_OtherRealEstateNonCoveredImpairmentRecognized
Namespace Prefix:	rnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Other real estate owned measured at fair value on nonrecurring basis.

+ References

No definition available.

+ Details

Name:	rnst_OtherRealEstateOwnedMeasuredAtFairValueOnNonrecurringBasisAbstract
Namespace Prefix:	rnst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Other real estate owned non covered fair value.

+ References

No definition available.

+ Details

Name:	rnst_OtherRealEstateOwnedNonCoveredFairValue
Namespace Prefix:	rnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: