XML 51 R9999.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Label | Element | Value
--- | --- | ---
Additional Paid-in Capital [Member] |  |
Stockholders' Equity Attributable to Parent, Adjusted Balance | trow_StockholdersEquityAttributabletoParentAdjustedBalance | $ 846,100,000
Common Stock [Member] |  |
Stockholders' Equity Attributable to Parent, Adjusted Balance | trow_StockholdersEquityAttributabletoParentAdjustedBalance | $ 49,000,000.0

X
- Definition Amount of stockholders' equity attributable to parent, after the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
Name: | trow_StockholdersEquityAttributabletoParentAdjustedBalance
Namespace Prefix: | trow_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |