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Unrecognized cost of unvested share-based compensation awards to be recognized in the next fiscal year.

No definition available.

Name:	trow_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostToBeRecognizedNextFiscalYear
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Unrecognized cost of unvested share-based compensation awards to be recognized in quarter four of the fiscal year.

No definition available.

Name:	trow_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostToBeRecognizedQuarterFourOfFiscalYear
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Data Type:	xbrli:monetaryItemType
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Unrecognized cost of unvested share-based compensation awards to be recognized in quarter three of the fiscal year.

No definition available.

Name:	trow_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostToBeRecognizedQuarterThreeOfFiscalYear
Namespace Prefix:	trow_
Data Type:	xbrli:monetaryItemType
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Unrecognized cost of unvested share-based compensation awards to be recognized in quarter two of the fiscal year.

No definition available.

Name:	trow_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostToBeRecognizedQuarterTwoOfFiscalYear
Namespace Prefix:	trow_
Data Type:	xbrli:monetaryItemType
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- References

No definition available.

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901