00100 - Statement - Unaudited condensed consolidated balance sheets
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00200 - Statement - Unaudited condensed consolidated statements of operations
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00300 - Statement - Unaudited condensed consolidated statements of comprehensive income
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00400 - Statement - Unaudited condensed consolidated statements of cash flows
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40301 - Disclosure - NON-CONTROLLING INTEREST AND INCOME PER SHARE (Details)
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40401 - Disclosure - ACQUISITIONS - Business Acquisitions (Details)
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40501 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Change in goodwill (Details)
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40502 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS- Intangible assets (Details)
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40702 - Disclosure - CREDIT FACILITY - Reconciliation of Principal Amounts Outstanding (Details)
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00090 - Document - Document and Entity Information
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00105 - Statement - Unaudited condensed consolidated balance sheets (Parenthetical)
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00500 - Statement - Unaudited condensed consolidated statements of changes in equity
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10101 - Disclosure - GENERAL
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10201 - Disclosure - SUMMARY OF ACCOUNTING POLICIES
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10401 - Disclosure - ACQUISITIONS
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10501 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS
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10601 - Disclosure - FAIR VALUE MEASUREMENTS
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10701 - Disclosure - CREDIT FACILITY
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10901 - Disclosure - EQUITY
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11201 - Disclosure - COMMITMENTS AND CONTINGENCIES
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11301 - Disclosure - CASH FLOW INFORMATION
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11401 - Disclosure - RELATED PARTIES
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11501 - Disclosure - OTHER
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20202 - Disclosure - SUMMARY OF ACCOUNTING POLICIES (Policies)
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30203 - Disclosure - SUMMARY OF ACCOUNTING POLICIES (Tables)
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30403 - Disclosure - ACQUISITIONS (Tables)
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30503 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)
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30603 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)
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30703 - Disclosure - CREDIT FACILITY (Tables)
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30903 - Disclosure - EQUITY (Tables)
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31303 - Disclosure - CASH FLOW INFORMATION (Tables)
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40201 - Disclosure - SUMMARY OF ACCOUNTING POLICIES - Revenue (Details)
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40402 - Disclosure - ACQUISITIONS - Asset Acquisitions (Details)
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40602 - Disclosure - FAIR VALUE MEASUREMENTS - Implied fair value (Details)
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40603 - Disclosure - FAIR VALUE MEASUREMENTS - Changes in the fair value (Details)
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40604 - Disclosure - FAIR VALUE MEASUREMENTS - Contingent consideration (Details)
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40701 - Disclosure - CREDIT FACILITY - Old and New Credit Facility (Details)
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40703 - Disclosure - CREDIT FACILITY - First Lien Revolver and Letters of Credit (Details)
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40801 - Disclosure - DERIVATIVES (Details)
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40901 - Disclosure - EQUITY (Details)
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40902 - Disclosure - EQUITY - Focus LLC Restricted Common Units and Focus LLC Incentive Units - Hurdle Rates (Details)
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41201 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)
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41301 - Disclosure - CASH FLOW INFORMATION (Details)
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41401 - Disclosure - RELATED PARTIES (Details)
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41501 - Disclosure - OTHER (Details)
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10301 - Disclosure - NON-CONTROLLING INTEREST AND INCOME PER SHARE
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10801 - Disclosure - DERIVATIVES
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11001 - Disclosure - INCOME TAXES
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11101 - Disclosure - TAX RECEIVABLE AGREEMENTS
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30303 - Disclosure - NON-CONTROLLING INTEREST AND INCOME PER SHARE (Tables)
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40601 - Disclosure - FAIR VALUE MEASUREMENTS - Marketable securities (Details)
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41001 - Disclosure - INCOME TAXES (Details)
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41101 - Disclosure - TAX RECEIVABLE AGREEMENTS (Details)
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