0001001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1002003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 1004005 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1005006 - Statement - CONSOLIDATED STATEMENTS OF EQUITY link:presentationLink link:calculationLink link:definitionLink 1006007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - ORGANIZATION link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - ORGANIZATION (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 - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) link:presentationLink link:calculationLink link:definitionLink 2107103 - Disclosure - CUSTOMER CONCENTRATION link:presentationLink link:calculationLink link:definitionLink 2408403 - Disclosure - CUSTOMER CONCENTRATION (Details) link:presentationLink link:calculationLink link:definitionLink 2109104 - Disclosure - SALE OF BUSINESS link:presentationLink link:calculationLink link:definitionLink 2410404 - Disclosure - SALE OF BUSINESS (Details) link:presentationLink link:calculationLink link:definitionLink 2111105 - Disclosure - INVESTMENT IN EQUITY SECURITIES link:presentationLink link:calculationLink link:definitionLink 2412405 - Disclosure - INVESTMENT IN EQUITY SECURITIES (Details) link:presentationLink link:calculationLink link:definitionLink 2113106 - Disclosure - ACCOUNTS RECEIVABLE, NET link:presentationLink link:calculationLink link:definitionLink 2314302 - Disclosure - ACCOUNTS RECEIVABLE, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2415406 - Disclosure - ACCOUNTS RECEIVABLE, NET (Details) link:presentationLink link:calculationLink link:definitionLink 2116107 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS link:presentationLink link:calculationLink link:definitionLink 2317303 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 2418407 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) link:presentationLink link:calculationLink link:definitionLink 2119108 - Disclosure - DISCONTINUATION OF LINES OF BUSINESS link:presentationLink link:calculationLink link:definitionLink 2420408 - Disclosure - DISCONTINUATION OF LINES OF BUSINESS (Details) link:presentationLink link:calculationLink link:definitionLink 2121109 - Disclosure - PREMISES AND EQUIPMENT, NET link:presentationLink link:calculationLink link:definitionLink 2322304 - Disclosure - PREMISES AND EQUIPMENT, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2423409 - Disclosure - PREMISES AND EQUIPMENT, NET (Details) link:presentationLink link:calculationLink link:definitionLink 2424410 - Disclosure - PREMISES AND EQUIPMENT, NET - Summary by Country (Details) link:presentationLink link:calculationLink link:definitionLink 2125110 - Disclosure - RIGHT-OF-USE ASSETS UNDER OPERATING LEASES, NET link:presentationLink link:calculationLink link:definitionLink 2326305 - Disclosure - RIGHT-OF-USE ASSETS UNDER OPERATING LEASES, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2427411 - Disclosure - RIGHT-OF-USE ASSETS UNDER OPERATING LEASES, NET (Details) link:presentationLink link:calculationLink link:definitionLink 2128111 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET link:presentationLink link:calculationLink link:definitionLink 2329306 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2430412 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET - Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 2431413 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET - Intangible Assets, Net (Details) link:presentationLink link:calculationLink link:definitionLink 2132112 - Disclosure - OTHER ASSETS link:presentationLink link:calculationLink link:definitionLink 2333307 - Disclosure - OTHER ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 2434414 - Disclosure - OTHER ASSETS (Details) link:presentationLink link:calculationLink link:definitionLink 2135113 - Disclosure - ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 2336308 - Disclosure - ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2437415 - Disclosure - ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 2438416 - Disclosure - ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details 2) link:presentationLink link:calculationLink link:definitionLink 2139114 - Disclosure - LONG-TERM DEBT link:presentationLink link:calculationLink link:definitionLink 2340309 - Disclosure - LONG-TERM DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 2441417 - Disclosure - LONG-TERM DEBT - Schedule of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2442418 - Disclosure - LONG-TERM DEBT (Details) link:presentationLink link:calculationLink link:definitionLink 2443419 - Disclosure - LONG-TERM DEBT - Schedule of Maturities of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2144115 - Disclosure - OTHER NON-CURRENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 2345310 - Disclosure - OTHER NON-CURRENT LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2446420 - Disclosure - OTHER NON-CURRENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 2147116 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 2348311 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 2449421 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 2450422 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2151117 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 2352312 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 2453423 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION (Details) link:presentationLink link:calculationLink link:definitionLink 2454424 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Stock option activity (Details) link:presentationLink link:calculationLink link:definitionLink 2455425 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Stock option information (Details) link:presentationLink link:calculationLink link:definitionLink 2456426 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Market-based options vesting prices (Details) link:presentationLink link:calculationLink link:definitionLink 2457427 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Restricted stock awards (Details) link:presentationLink link:calculationLink link:definitionLink 2458428 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Assumptions Used to Determine the Fair Values for Performance-Based Awards (Details) link:presentationLink link:calculationLink link:definitionLink 2159118 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 2360313 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 2461429 - Disclosure - REVENUE (Details) link:presentationLink link:calculationLink link:definitionLink 2462430 - Disclosure - REVENUE - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 2163119 - Disclosure - COST OF REVENUE link:presentationLink link:calculationLink link:definitionLink 2364314 - Disclosure - COST OF REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 2465431 - Disclosure - COST OF REVENUE (Details) link:presentationLink link:calculationLink link:definitionLink 2166120 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES link:presentationLink link:calculationLink link:definitionLink 2367315 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Tables) link:presentationLink link:calculationLink link:definitionLink 2468432 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Details) link:presentationLink link:calculationLink link:definitionLink 2169121 - Disclosure - OTHER INCOME (EXPENSE), NET link:presentationLink link:calculationLink link:definitionLink 2370316 - Disclosure - OTHER INCOME (EXPENSE), NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2471433 - Disclosure - OTHER INCOME (EXPENSE), NET (Details) link:presentationLink link:calculationLink link:definitionLink 2172122 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 2373317 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 2474434 - Disclosure - INCOME TAXES - Components of Income Before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2475435 - Disclosure - INCOME TAXES - Income Tax (Provision) Benefit) (Details) link:presentationLink link:calculationLink link:definitionLink 2476436 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2477437 - Disclosure - INCOME TAXES - Summary of Tax Effects of Temporary Differences (Details) link:presentationLink link:calculationLink link:definitionLink 2478438 - Disclosure - INCOME TAXES - Reconciliation of Luxembourg Statutory Tax Rate to Effective Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 2479439 - Disclosure - INCOME TAXES - Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 2180123 - Disclosure - LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 2381318 - Disclosure - LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 2482440 - Disclosure - LOSS PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 2183124 - Disclosure - RESTRUCTURING CHARGES link:presentationLink link:calculationLink link:definitionLink 2484441 - Disclosure - RESTRUCTURING CHARGES (Details) link:presentationLink link:calculationLink link:definitionLink 2185125 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS link:presentationLink link:calculationLink link:definitionLink 2386319 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS (Tables) link:presentationLink link:calculationLink link:definitionLink 2487442 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS (Details) link:presentationLink link:calculationLink link:definitionLink 2488443 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Lease Term and Assumption (Details) link:presentationLink link:calculationLink link:definitionLink 2489444 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Lease Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2490445 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Maturities of Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2490445 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Maturities of Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2191126 - Disclosure - QUARTERLY FINANCIAL DATA (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 2392320 - Disclosure - QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables) link:presentationLink link:calculationLink link:definitionLink 2493446 - Disclosure - QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) link:presentationLink link:calculationLink link:definitionLink 2194127 - Disclosure - SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS link:presentationLink link:calculationLink link:definitionLink 2495447 - Disclosure - SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS (Details) link:presentationLink link:calculationLink link:definitionLink