Regulatory Restrictions - Narrative (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Regulatory Restrictions [Abstract]
Restricted investment in bank	$ 894,400
Average reserve balance	$ 0

Amount of cash subject to withdrawal restrictions, restricted deposits held as compensating balances, and cash and securities segregated in compliance with regulations (such as cash deposited in a special reserve account for the exclusive benefit of customers).

No definition available.

Name:	us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant