0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Statements of Operations (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Statements of Operations (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Equity (Deficit) (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - ORGANIZATION AND NATURE OF BUSINESS OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - VARIABLE INTEREST ENTITIES link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - SECURITIES AND OTHER INVESTMENTS OWNED AND SECURITIES SOLD NOT YET PURCHASED link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - SECURITIES LENDING link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - ACCOUNTS RECEIVABLE link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - LOANS RECEIVABLE, AT FAIR VALUE link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - EQUITY METHOD INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - PREPAID EXPENSES AND OTHER ASSETS link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - ACCRUED EXPENSES AND OTHER LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - TERM LOANS AND REVOLVING CREDIT FACILITIES link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - SENIOR NOTES PAYABLE link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - NONCONTROLLING INTERESTS link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - RESTRUCTURING CHARGE link:presentationLink link:calculationLink link:definitionLink 9952177 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952178 - Disclosure - EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952179 - Disclosure - SHARE-BASED PAYMENTS link:presentationLink link:calculationLink link:definitionLink 9952180 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952181 - Disclosure - NET CAPITAL REQUIREMENTS link:presentationLink link:calculationLink link:definitionLink 9952182 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 9952183 - Disclosure - BUSINESS SEGMENTS link:presentationLink link:calculationLink link:definitionLink 9952184 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - VARIABLE INTEREST ENTITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - SECURITIES AND OTHER INVESTMENTS OWNED AND SECURITIES SOLD NOT YET PURCHASED (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - SECURITIES LENDING (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - ACCOUNTS RECEIVABLE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - LOANS RECEIVABLE, AT FAIR VALUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - EQUITY METHOD INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - PREPAID EXPENSES AND OTHER ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - ACCRUED EXPENSES AND OTHER LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - TERM LOANS AND REVOLVING CREDIT FACILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - SENIOR NOTES PAYABLE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - RESTRUCTURING CHARGE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - SHARE-BASED PAYMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - NET CAPITAL REQUIREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - BUSINESS SEGMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - ORGANIZATION AND NATURE OF BUSINESS OPERATIONS (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - VARIABLE INTEREST ENTITIES - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - VARIABLE INTEREST ENTITIES - Schedule of investments in the VIE (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - VARIABLE INTEREST ENTITIES - Schedule of assets and liabilities transferred to the BRC trust (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE - Schedule of assets and liabilities from discontinued operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE - Schedule of revenue from discontinued operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE - Schedule of cash flows from discontinued operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE - Schedule of supplemental disclosures from cash flows (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of financial assets and liabilities measured on recurring basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - FAIR VALUE MEASUREMENTS - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of significant unobservable inputs of level 3 financial assets and liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of fair value measurement of level 3 financial assets and liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of fair value measurement of level 3 financial assets and liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of equity securities valued under the measurement alternative on nonrecurring basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of financial assets measured on nonrecurring basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - SECURITIES AND OTHER INVESTMENTS OWNED AND SECURITIES SOLD NOT YET PURCHASED - Schedule of securities and other investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - SECURITIES AND OTHER INVESTMENTS OWNED AND SECURITIES SOLD NOT YET PURCHASED - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - SECURITIES AND OTHER INVESTMENTS OWNED AND SECURITIES SOLD NOT YET PURCHASED - Schedule of equity securities without readily determinable fair value (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - SECURITIES AND OTHER INVESTMENTS OWNED AND SECURITIES SOLD NOT YET PURCHASED - Schedule of equity method investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - SECURITIES LENDING - Schedule of contractual gross and net securities borrowing and lending balances (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - SECURITIES LENDING - Schedule of contract value of securities leading transaction by type of collateral (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - SECURITIES LENDING - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - ACCOUNTS RECEIVABLE - Schedule of components of accounts receivable, net (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - ACCOUNTS RECEIVABLE - Schedule of allowance for doubtful accounts (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - LOANS RECEIVABLE, AT FAIR VALUE - Schedule of loans receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - LOANS RECEIVABLE, AT FAIR VALUE - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - EQUITY METHOD INVESTMENTS - Schedule of investments accounted for under the equity method (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - EQUITY METHOD INVESTMENTS - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - EQUITY METHOD INVESTMENTS - Schedule of table contain summarized financial information (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - PREPAID EXPENSES AND OTHER ASSETS (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of intangible assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - ACCRUED EXPENSES AND OTHER LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - TERM LOANS AND REVOLVING CREDIT FACILITIES - Schedule of term loans and revolving credit facilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - TERM LOANS AND REVOLVING CREDIT FACILITIES - Oaktree credit agreement (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - TERM LOANS AND REVOLVING CREDIT FACILITIES - Targus/FGI credit agreement (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - TERM LOANS AND REVOLVING CREDIT FACILITIES - Nomura credit agreement (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - TERM LOANS AND REVOLVING CREDIT FACILITIES - BRPAC credit agreement (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - SENIOR NOTES PAYABLE - Schedule of senior notes payable, net (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - SENIOR NOTES PAYABLE - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - NONCONTROLLING INTERESTS (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of revenues from contracts with customers (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of contract with customer, contract liability (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of contract with customer, contract asset, contract liability, and receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of disaggregation of revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - RESTRUCTURING CHARGE - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955579 - Disclosure - RESTRUCTURING CHARGE - Schedule of changes in accrued restructuring charge (Details) link:presentationLink link:calculationLink link:definitionLink 9955580 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - Disclosure - EARNINGS PER SHARE - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955582 - Disclosure - EARNINGS PER SHARE - Schedule of basic and diluted earnings per share (Details) link:presentationLink link:calculationLink link:definitionLink 9955583 - Disclosure - SHARE-BASED PAYMENTS - Schedule of employee stock incentive plans (Details) link:presentationLink link:calculationLink link:definitionLink 9955584 - Disclosure - SHARE-BASED PAYMENTS - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955585 - Disclosure - STOCKHOLDERS' EQUITY (Details) link:presentationLink link:calculationLink link:definitionLink 9955586 - Disclosure - NET CAPITAL REQUIREMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 9955587 - Disclosure - RELATED PARTY TRANSACTIONS (Details) link:presentationLink link:calculationLink link:definitionLink 9955588 - Disclosure - BUSINESS SEGMENTS - Schedule of reportable segments (Details) link:presentationLink link:calculationLink link:definitionLink 9955589 - Disclosure - BUSINESS SEGMENTS - Schedule of reconciliation of segment income (loss) to net income (loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955590 - Disclosure - BUSINESS SEGMENTS - Schedule of revenues by geographical area (Details) link:presentationLink link:calculationLink link:definitionLink 9955591 - Disclosure - BUSINESS SEGMENTS - Schedule of long-lived assets by geographic areas (Details) link:presentationLink link:calculationLink link:definitionLink 9955592 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink