Appraised value of assets pledged to secure a debt instrument.

No definition available.

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Namespace Prefix:	rt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Maximum amount of the original debt instrument that can be repurchased.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Represents the maximum permitted amount for declaration and payment of a dividend or other distribution, and/or repurchase of the Company's outstanding common stock by Indenture agreement.

+ References

No definition available.

+ Details

Name:	rt_DebtInstrumentRestrictiveCovenantsMaximumAmount
Namespace Prefix:	rt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum leverage ratio to be maintained after current fiscal year under the terms of the credit facility.

+ References

No definition available.

+ Details

Name:	rt_LineOfCreditFacilityMaximumLeverageRatioThereafter
Namespace Prefix:	rt_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum fixed charge coverage ratio to be maintained after current fiscal year under the terms of the credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	rt_
Data Type:	xbrli:decimalItemType
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- Details

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Period Type:	duration

- Definition

Represents the additional amount of borrowing capacity the entity has the option to increase the revolving credit facility per the credit agreement.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Represents percentage of senior notes redeemed from equity offerings.

+ References

No definition available.

+ Details

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Namespace Prefix:	rt_
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- Definition

Mortgage loan obligations acquired as of balance sheet date.

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No definition available.

+ Details

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- Definition

Redemption Price Percentage On Principal Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	rt_
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Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

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Period Type:	instant

- Definition

Amount of assets pledged to secure a debt instrument.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (d)

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Cumulative amount paid into a fund, which is used to retire the debt instrument.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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-SubTopic 30

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-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

When presenting a range of interest rates, the highest effective rate for funds borrowed under the debt agreement as of the balance sheet date.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

When presenting a range of interest rates, the lowest effective rate for funds borrowed under the debt agreement as of the balance sheet date.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Data Type:	num:percentItemType
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Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

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-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

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-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow for incremental, external costs directly pertaining to an early extinguishment of debt, including legal costs and prepayment penalties, and excluding interest and repayment of debt principal.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

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-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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Balance Type:	credit
Period Type:	duration

- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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-Name Accounting Standards Codification

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-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

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-Name Regulation S-X (SX)

-Number 210

-Section 03

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-Article 9

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-Name Regulation S-X (SX)

-Number 210

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-Paragraph 19, 20, 22

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Note H - Long-term Debt and Capital Leases (Details) (USD $)	9 Months Ended		3 Months Ended
	Mar. 03, 2015	Mar. 04, 2014	Mar. 03, 2015	Jun. 03, 2014	Dec. 03, 2013	May 14, 2012
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Secured Debt	$ 37,845,000us-gaap_SecuredDebt		$ 37,845,000us-gaap_SecuredDebt	$ 45,252,000us-gaap_SecuredDebt
Repayments of Long-term Debt	7,412,000us-gaap_RepaymentsOfLongTermDebt	31,981,000us-gaap_RepaymentsOfLongTermDebt
Replaced Credit Facility ]Member] \| Revolving Credit Facility [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					200,000,000
Senior Notes [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Debt Instrument, Face Amount						250,000,000
Debt Instrument, Interest Rate, Stated Percentage						7.625%
Debt Instrument, Unamortized Discount	2,250,000		2,250,000	2,503,000		3,700,000
Debt Instrument, Maturity Date	May 15, 2020
Redemption Price Percentage on Principal Amount	100.00%		100.00%
Percentage of Senior Notes Redeemed from Equity Offering	35.00%		35.00%
Debt Instrument, Cumulative Sinking Fund Payments	0		0
Debt Instrument, Restrictive Covenants, Maximum Amount	50,000,000
Debt Instrument Repurchased Amount Authorized	20,000,000		20,000,000
Long-term Debt, Gross	215,000,000		215,000,000	215,000,000
Mortgages [Member] \| Minimum [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Range of Loan Balances	200,000		200,000
Mortgages [Member] \| Maximum [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Range of Loan Balances	7,400,000		7,400,000
Mortgages [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Secured Debt	37,800,000		37,800,000
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Minimum	7.60%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum	10.92%
Repayments of Long-term Debt	3,900,000
Payments of Debt Extinguishment Costs	400,000
Revolving Credit Facility [Member] \| Federal Funds Rate [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.00%
Revolving Credit Facility [Member] \| Eurodollar [Member] \| Minimum [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Revolving Credit Facility [Member] \| Eurodollar [Member] \| Maximum [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	3.50%
Revolving Credit Facility [Member] \| Base Rate [Member] \| Minimum [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%
Revolving Credit Facility [Member] \| Base Rate [Member] \| Maximum [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Revolving Credit Facility [Member] \| Minimum [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.40%
Revolving Credit Facility [Member] \| Maximum [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.75%
Revolving Credit Facility [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Debt Instrument, Term	4 years
Line of Credit Facility, Current Borrowing Capacity					50,000,000
Option to Increase Revolving Credit Facility Capacity					35,000,000
Debt Instrument, Collateral Amount, Appraised Value					101,400,000
Debt Instrument, Collateral Amount	79,500,000		79,500,000
Long-term Line of Credit	0		0
Line of Credit Facility, Remaining Borrowing Capacity	37,500,000		37,500,000
Line of Credit Facility Maximum Leverage Ratio Thereafter			4.85
Line of Credit Facility, Minimum Fixed Charge Coverage Ratio Thereafter			1.35
Sublimit for Standby Letters of Credit [Member]
Note H - Long-term Debt and Capital Leases (Details) [Line Items]
Line of Credit Facility, Current Borrowing Capacity					$ 25,000,000