| 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 | 
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- Definition Total number of offices aqcuired. No definition available. 
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- Definition Date when the acquirer obtains control of the acquiree, in YYYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition 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 
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- Details 
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