Principles of Consolidation (Details) $ in Billions	3 Months Ended
Mar. 31, 2022 USD ($) location	Dec. 31, 2021 USD ($)
Principles of Consolidation
Number of locations in Pennsylvania	16
Number of locations in state Maryland	1
Assets under Management, Carrying Amount \| $	$ 2.6	$ 2.7

The carrying amount of assets an investment adviser manages on behalf of investors.

No definition available.

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