Subsequent Events (Details) $ in Billions	Sep. 30, 2022 USD ($)
AlphaSimplex Group, LLC \| Plan \| AlphaSimplex Group, LLC
Subsequent Event [Line Items]
Assets under management, carrying amount	$ 10.9

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration