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Income Taxes (Summary Of Activity In Valuation Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	May 28, 2022	May 29, 2021	May 30, 2020
Income Taxes [Abstract]
Valuation allowance, Beginning Balance	$ 13,263	$ 11,069	$ 13,190
Valuation allowance, Charged to Operations	(3,152)	951	(1,919)
Valuation allowance, Currency Rate Changes	(1,862)	1,243	(202)
Valuation allowance, Ending Balance	$ 8,249	$ 13,263	$ 11,069

X

- Definition

Operating Loss Carryforwards Valuation Allowance, Charged to Operations

+ References

No definition available.

+ Details

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X

- Definition

Operating Loss Carryforwards Valuation Allowance, Currency Rate Changes

+ References

No definition available.

+ Details

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Namespace Prefix:	rgp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
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- Definition

The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

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