BUSINESS AND BASIS OF PRESENTATION - Narrative (Details) - Strategic Wealth Group, LLC [Member] $ in Millions		6 Months Ended
Apr. 30, 2021 USD ($) BankingOffices	Jun. 30, 2022
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition		Apr. 30, 2021
Payments to Acquire Businesses, Gross	$ 4.5
Intangible asset acquired	1.6
Goodwill acquired	$ 2.8
Number of offices acquired \| BankingOffices	5

Total number of offices aqcuired.

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Date when the acquirer obtains control of the acquiree, in YYYY-MM-DD format.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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

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