XML 51 R40.htm IDEA: XBRL DOCUMENT
v3.25.2

Summary of Significant Accounting Policies - Schedule of Company's (Income) Loss from Investments Held in Employee Deferred Compensation Trusts (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Accounting Policies [Abstract] |  |  |  |
Dividend income | $ (3,055) | $ (2,627) | $ (4,995) | $ (4,698)
Realized and unrealized gains | (54,599) | (13,106) | (32,488) | (54,411)
Income from investments held in employee deferred compensation trusts (which is completely offset by related costs and expenses) | (57,654) | (15,733) | (37,483) | (59,109)
Increase in employee deferred compensation costs and expense related to changes in the fair value of trust assets | $ 57,654 | $ 15,733 | $ 37,483 | $ 59,109

X
- Definition Deferred Compensation Plan, Dividend Income + References No definition available. + Details
Name: | rhi_DeferredCompensationPlanDividendIncome
Namespace Prefix: | rhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Deferred Compensation Plan, Investment Income + References No definition available. + Details
Name: | rhi_DeferredCompensationPlanInvestmentIncome
Namespace Prefix: | rhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Deferred Compensation Plan, Realized and Unrealized Gain (Loss) + References No definition available. + Details
Name: | rhi_DeferredCompensationPlanRealizedAndUnrealizedGainLoss
Namespace Prefix: | rhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 710 -SubTopic 10 -Name Accounting Standards Codification -Section 30 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483043/710-10-30-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-1 + Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration