The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Pending Acquisitions - Narratives (Details) - USD ($) $ in Millions			1 Months Ended
	Nov. 01, 2021	Jul. 31, 2020	Sep. 30, 2021
Pending Acquisitions [Line Items]
Purchase consideration in cash		$ 4,500.0
O’Shaughnessy Asset Management
Pending Acquisitions [Line Items]
Purchase consideration in cash			$ 300.0
Lexington Partners L.P. \| Subsequent Event [Member]
Pending Acquisitions [Line Items]
Purchase consideration in cash	$ 1,000.0
PlannedPaymentsToAcquireBusinessesGross	$ 750.0