CONSOLIDATED INVESTMENT PRODUCTS - Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 1,753.4	$ 1,685.6	$ 1,219.1
Net cash provided by (used in) investing activities	230.3	(177.5)	128.2
Net cash provided by (used in) financing activities	(1,277.4)	(936.6)	(1,078.6)
Effect of exchange rate changes on cash and cash equivalents of consolidated investment products	(1.9)	(2.4)	0.4
Net change in cash and cash equivalents during year	704.4	569.1	269.1
Cash and cash equivalents at beginning of year	2,712.9	2,143.8	1,874.7
Cash and cash equivalents at end of year	3,417.3	2,712.9	2,143.8
Consolidated T. Rowe Price investment products
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents at beginning of year	63.1	77.2	119.1
Cash and cash equivalents at end of year	39.1	63.1	77.2
Consolidated T. Rowe Price investment products \| Reportable entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(797.3)	(633.8)	(888.9)
Net cash provided by (used in) investing activities	(63.1)	(15.8)	(56.8)
Net cash provided by (used in) financing activities	838.3	637.9	903.4
Effect of exchange rate changes on cash and cash equivalents of consolidated investment products	(1.9)	(2.4)	0.4
Net change in cash and cash equivalents during year	(24.0)	(14.1)	(41.9)
Cash and cash equivalents at beginning of year	63.1	77.2	119.1
Cash and cash equivalents at end of year	39.1	63.1	77.2
Voting interest entities \| Reportable entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(370.5)	(239.4)	(517.5)
Net cash provided by (used in) investing activities	0.6	(14.7)	(32.7)
Net cash provided by (used in) financing activities	365.7	235.6	559.7
Effect of exchange rate changes on cash and cash equivalents of consolidated investment products	0.0	0.0	0.0
Net change in cash and cash equivalents during year	(4.2)	(18.5)	9.5
Cash and cash equivalents at beginning of year	7.2	25.7	16.2
Cash and cash equivalents at end of year	3.0	7.2	25.7
Variable interest entities \| Reportable entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(426.8)	(394.4)	(371.4)
Net cash provided by (used in) investing activities	(63.7)	(1.1)	(24.1)
Net cash provided by (used in) financing activities	472.6	402.3	343.7
Effect of exchange rate changes on cash and cash equivalents of consolidated investment products	(1.9)	(2.4)	0.4
Net change in cash and cash equivalents during year	(19.8)	4.4	(51.4)
Cash and cash equivalents at beginning of year	55.9	51.5	102.9
Cash and cash equivalents at end of year	$ 36.1	$ 55.9	$ 51.5

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