XML 262 R91.htm IDEA: XBRL DOCUMENT
v3.25.0.1

LONG-TERM INCENTIVE COMPENSATION - Restricted Fund Units Liability (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($)
Deferred Compensation Arrangement With Individual, Share-Based Payments [Roll Forward] |
Balance at beginning of year | $ 895.0
Balance at end of year | 1,020.7
Restricted Fund Units |
Deferred Compensation Arrangement With Individual, Share-Based Payments [Roll Forward] |
Balance at beginning of year | 0.0
Amortization of grant date value | 14.8
Amortization of market appreciation (depreciation) | (0.1)
Balance at end of year | $ 14.7

X
- Definition Deferred Compensation Arrangement With Individual, Amortization Of Appreciation (Depreciation) + References No definition available. + Details
Name: | trow_DeferredCompensationArrangementWithIndividualAmortizationOfAppreciationDepreciation
Namespace Prefix: | trow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Deferred Compensation Arrangement With Individual, Amortization Of Grant Date Value + References No definition available. + Details
Name: | trow_DeferredCompensationArrangementWithIndividualAmortizationOfGrantDateValue
Namespace Prefix: | trow_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Deferred Compensation Arrangement With Individual, Share-Based Payments + References No definition available. + Details
Name: | trow_DeferredCompensationArrangementWithIndividualShareBasedPaymentsRollForward
Namespace Prefix: | trow_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit. + 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 + Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_AwardTypeAxis=trow_RestrictedFundUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |