0001001 - Document - COVER PAGE link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED link:presentationLink link:calculationLink link:definitionLink 1002003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - UNAUDITED link:presentationLink link:calculationLink link:definitionLink 1004005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) - UNAUDITED link:presentationLink link:calculationLink link:definitionLink 1005006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - NATURE OF BUSINESS link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - NATURE OF BUSINESS (Details) link:presentationLink link:calculationLink link:definitionLink 2103102 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 2204201 - Disclosure - Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2405402 - Disclosure - Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 2106103 - Disclosure - INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 2307301 - Disclosure - INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 2408403 - Disclosure - INVESTMENTS - Amortized Cost and Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 2409404 - Disclosure - INVESTMENTS - Other Investments (Details) link:presentationLink link:calculationLink link:definitionLink 2410405 - Disclosure - INVESTMENTS - Unrealized Losses (Details) link:presentationLink link:calculationLink link:definitionLink 2411406 - Disclosure - INVESTMENTS - Gross and Net Realized Gains and Losses (Details) link:presentationLink link:calculationLink link:definitionLink 2412407 - Disclosure - INVESTMENTS - Contractual Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 2413408 - Disclosure - INVESTMENTS - Net Investment Income (Details) link:presentationLink link:calculationLink link:definitionLink 2414409 - Disclosure - INVESTMENTS - Credit Ratings (Details) link:presentationLink link:calculationLink link:definitionLink 2115104 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 2316302 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 2417410 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS - Balance Sheet Grouping (Details) link:presentationLink link:calculationLink link:definitionLink 2418411 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS - Long Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2119105 - Disclosure - LOSS AND LOSS ADJUSTMENT EXPENSE RESERVES link:presentationLink link:calculationLink link:definitionLink 2320303 - Disclosure - LOSS AND LOSS ADJUSTMENT EXPENSE RESERVES (Tables) link:presentationLink link:calculationLink link:definitionLink 2421412 - Disclosure - LOSS AND LOSS ADJUSTMENT EXPENSE RESERVES (Details) link:presentationLink link:calculationLink link:definitionLink 2422413 - Disclosure - LOSS AND LOSS ADJUSTMENT EXPENSE RESERVES- Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2123106 - Disclosure - REINSURANCE link:presentationLink link:calculationLink link:definitionLink 2324304 - Disclosure - REINSURANCE (Tables) link:presentationLink link:calculationLink link:definitionLink 2425414 - Disclosure - REINSURANCE (Details) link:presentationLink link:calculationLink link:definitionLink 2126107 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 2327305 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 2428415 - Disclosure - LEASES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2429416 - Disclosure - LEASES - Future Lease Payment (Details) link:presentationLink link:calculationLink link:definitionLink 2429416 - Disclosure - LEASES - Future Lease Payment (Details) link:presentationLink link:calculationLink link:definitionLink 2430417 - Disclosure - LEASES - Operating Lease Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 2131108 - Disclosure - LONG-TERM DEBT link:presentationLink link:calculationLink link:definitionLink 2332306 - Disclosure - LONG-TERM DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 2433418 - Disclosure - LONG-TERM DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2434419 - Disclosure - LONG-TERM DEBT - Schedule Of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2135109 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 2436420 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 2137110 - Disclosure - SHARE-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 2338307 - Disclosure - SHARE-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 2439421 - Disclosure - SHARE-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2440422 - Disclosure - SHARE-BASED COMPENSATION - Share-based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2441423 - Disclosure - SHARE-BASED COMPENSATION - RSU Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2442424 - Disclosure - SHARE-BASED COMPENSATION - Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2143111 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 2144112 - Disclosure - OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 2345308 - Disclosure - OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables) link:presentationLink link:calculationLink link:definitionLink 2446425 - Disclosure - OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) link:presentationLink link:calculationLink link:definitionLink 2147113 - Disclosure - LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 2348309 - Disclosure - LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 2449426 - Disclosure - LOSS PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 2450427 - Disclosure - LOSS PER SHARE - Schedule of Anti-Dilutive Securities (Details) link:presentationLink link:calculationLink link:definitionLink 2151114 - Disclosure - GEOGRAPHICAL BREAKDOWN OF GROSS WRITTEN PREMIUM link:presentationLink link:calculationLink link:definitionLink 2352310 - Disclosure - GEOGRAPHICAL BREAKDOWN OF GROSS WRITTEN PREMIUM (Tables) link:presentationLink link:calculationLink link:definitionLink 2453428 - Disclosure - GEOGRAPHICAL BREAKDOWN OF GROSS WRITTEN PREMIUM (Details) link:presentationLink link:calculationLink link:definitionLink 2154115 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 2455429 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink