INVESTMENT SECURITIES - ROLLFORWARD OF CREDIT LOSSES (Details) - Private label mortgage backed security - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Rollforward of the Bank's private label mortgage backed security credit losses recognized in earnings
Balance, beginning of year	$ 1,800	$ 1,941	$ 2,142
Recovery of losses previously recorded	(35)	(141)	(201)
Balance, end of year	1,765	$ 1,800	$ 1,941
Additional impairment charge that may be recognized	$ 4,000

Represents the estimated other than temporary impairment losses that may be recognized should further economic deterioration occur.

No definition available.

+ Details

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Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27340-111563

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

This item represents reductions in the amount of cumulative losses recognized in earnings for other than temporary impairments (OTTI) for which a portion of the impairment had been recognized in other comprehensive income (a component of shareholders' equity) due to a change in status of the impaired security because of a change in the entity's intent to either sell the impaired security or it has become more likely than not that the entity will be required to sell the security before recovery of its cost basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27340-111563

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Period Type:	duration

- 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

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- Details

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