CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
OPERATING ACTIVITIES:
Net income	$ 13,788us-gaap_NetIncomeLoss	$ 11,984us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization on investment securities, net	154	283
Accretion on loans, net	(310)rbcaa_AmortizationAccretionOnLoansNet	(2,650)rbcaa_AmortizationAccretionOnLoansNet
Depreciation of premises and equipment	1,577	1,363
Amortization of mortgage servicing rights	338	314
Provision for loan and lease losses	185	(703)
Net gain on sale of mortgage loans held for sale	(1,222)us-gaap_GainLossOnSaleOfMortgageLoans	(498)us-gaap_GainLossOnSaleOfMortgageLoans
Origination of mortgage loans held for sale	(45,835)	(14,110)
Proceeds from sale of mortgage loans held for sale	40,697	15,700
Net gain realized on sale of other real estate owned	(365)	(402)
Writedowns of other real estate owned	484us-gaap_ImpairmentOfRealEstate	884us-gaap_ImpairmentOfRealEstate
Deferred director compensation expense - Company Stock	67	53
Stock based compensation expense	78us-gaap_ShareBasedCompensation	106us-gaap_ShareBasedCompensation
Increase in cash surrender value of bank owned life insurance	(349)us-gaap_BankOwnedLifeInsuranceIncome	(191)us-gaap_BankOwnedLifeInsuranceIncome
Net change in other assets and liabilities:
Accrued interest receivable	(78)	270
Accrued interest payable	9	(112)
Other assets	1,127	8,256
Other liabilities	6,329	157
Net cash provided by operating activities	16,674	20,704
INVESTING ACTIVITIES:
Purchases of securities available for sale	(767,299)	(30,000)
Proceeds from calls, maturities and paydowns of securities available for sale	740,141	45,868
Proceeds from calls, maturities and paydowns of securities to be held to maturity	850	1,472
Net change in outstanding warehouse lines of credit	(103,724)	13,314
Purchase of loans, including premiums paid	(19,531)
Net change in other loans	10,370	1,910
Proceeds from redemption of Federal Home Loan Bank stock		32
Proceeds from sales of other real estate owned	2,630	2,627
Net purchases of premises and equipment	(374)	(1,403)
Purchase of bank owned life insurance		(5,000)
Net cash (used in)/provided by investing activities	(136,937)	28,820
FINANCING ACTIVITIES:
Net change in deposits	322,035us-gaap_IncreaseDecreaseInDeposits	93,355us-gaap_IncreaseDecreaseInDeposits
Net change in securities sold under agreements to repurchase and other short-term borrowings	(23,574)	56,619
Payments of Federal Home Loan Bank advances	(198,000)	(48,000)
Proceeds from Federal Home Loan Bank advances	87,000	25,000
Repurchase of Common Stock		(347)
Net proceeds from Common Stock options exercised	119	20
Cash dividends paid	(3,846)us-gaap_PaymentsOfDividends	(3,648)us-gaap_PaymentsOfDividends
Net cash provided by (used in) financing activities	183,734	122,999
Net change in cash and cash equivalents	63,471	172,523
Cash and cash equivalents at beginning of period	72,878	170,863
Cash and cash equivalents at end of period	136,349	343,386
Cash paid during the period for:
Interest	4,730us-gaap_InterestPaid	5,305us-gaap_InterestPaid
Income taxes	585us-gaap_IncomeTaxesPaid	397us-gaap_IncomeTaxesPaid
SUPPLEMENTAL NONCASH DISCLOSURES:
Transfers from loans to real estate acquired in settlement of loans	332us-gaap_TransferToOtherRealEstate	3,070us-gaap_TransferToOtherRealEstate
Loans provided for sales of other real estate owned	$ 2,090rbcaa_SupplementalNoncashTransactions	$ 149rbcaa_SupplementalNoncashTransactions

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Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.

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The cash inflow from a borrowing made from Federal Home Loan Bank.

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Amount of cash inflow from sale of Federal Reserve Bank (FRB) stock.

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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