0001001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0002002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 1001003 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1002004 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003005 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) link:presentationLink link:calculationLink link:definitionLink 1004006 - Statement - CONSOLIDATED STATEMENTS OF EQUITY link:presentationLink link:calculationLink link:definitionLink 1005007 - 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 -Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - PP&E Useful Life (Details) link:presentationLink link:calculationLink link:definitionLink 2108103 - Disclosure - CUSTOMER CONCENTRATION link:presentationLink link:calculationLink link:definitionLink 2409404 - Disclosure - CUSTOMER CONCENTRATION (Details) link:presentationLink link:calculationLink link:definitionLink 2110104 - Disclosure - SALE OF BUSINESSES link:presentationLink link:calculationLink link:definitionLink 2411405 - Disclosure - SALE OF BUSINESSES (Details) link:presentationLink link:calculationLink link:definitionLink 2112105 - Disclosure - INVESTMENT IN EQUITY SECURITIES link:presentationLink link:calculationLink link:definitionLink 2413406 - Disclosure - INVESTMENT IN EQUITY SECURITIES (Details) link:presentationLink link:calculationLink link:definitionLink 2114106 - Disclosure - ACCOUNTS RECEIVABLE, NET link:presentationLink link:calculationLink link:definitionLink 2315302 - Disclosure - ACCOUNTS RECEIVABLE, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2416407 - Disclosure - ACCOUNTS RECEIVABLE, NET - Schedule of Accounts Receivable, Net (Details) link:presentationLink link:calculationLink link:definitionLink 2417408 - Disclosure - ACCOUNTS RECEIVABLE, NET - Schedule of Allowance for Doubtful Accounts and Expected Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 2118107 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS link:presentationLink link:calculationLink link:definitionLink 2319303 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 2420409 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) link:presentationLink link:calculationLink link:definitionLink 2121108 - Disclosure - DISCONTINUATION OF LINES OF BUSINESS link:presentationLink link:calculationLink link:definitionLink 2122109 - Disclosure - PREMISES AND EQUIPMENT, NET link:presentationLink link:calculationLink link:definitionLink 2323304 - Disclosure - PREMISES AND EQUIPMENT, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2424410 - Disclosure - PREMISES AND EQUIPMENT, NET - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2425411 - Disclosure - PREMISES AND EQUIPMENT, NET - Summary of Premise and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 2426412 - Disclosure - PREMISES AND EQUIPMENT, NET - Summary by Country (Details) link:presentationLink link:calculationLink link:definitionLink 2127110 - Disclosure - RIGHT-OF-USE ASSETS UNDER OPERATING LEASES, NET link:presentationLink link:calculationLink link:definitionLink 2328305 - Disclosure - RIGHT-OF-USE ASSETS UNDER OPERATING LEASES, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2429413 - Disclosure - RIGHT-OF-USE ASSETS UNDER OPERATING LEASES, NET - Summary of Right-of-Use Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2430414 - Disclosure - RIGHT-OF-USE ASSETS UNDER OPERATING LEASES, NET - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2131111 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET link:presentationLink link:calculationLink link:definitionLink 2332306 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2433415 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET - Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 2434416 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET - Intangible Assets, Net (Details) link:presentationLink link:calculationLink link:definitionLink 2435417 - Disclosure - GOODWILL AND INTANGIBLE ASSETS, NET - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2136112 - Disclosure - OTHER ASSETS link:presentationLink link:calculationLink link:definitionLink 2337307 - Disclosure - OTHER ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 2438418 - Disclosure - OTHER ASSETS (Details) link:presentationLink link:calculationLink link:definitionLink 2139113 - Disclosure - ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 2340308 - Disclosure - ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2441419 - Disclosure - ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 2442420 - Disclosure - ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details 2) link:presentationLink link:calculationLink link:definitionLink 2143114 - Disclosure - LONG-TERM DEBT link:presentationLink link:calculationLink link:definitionLink 2344309 - Disclosure - LONG-TERM DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 2445421 - Disclosure - LONG-TERM DEBT - Schedule of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2446422 - Disclosure - LONG-TERM DEBT - Schedule of Maturities of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2447423 - Disclosure - LONG-TERM DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2148115 - Disclosure - OTHER NON-CURRENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 2349310 - Disclosure - OTHER NON-CURRENT LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2450424 - Disclosure - OTHER NON-CURRENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 2151116 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 2352311 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 2453425 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 2454426 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2155117 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 2356312 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 2457427 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2458428 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Weighted Average Fair Value of Stock Options Granted and Total Intrinsic Value of Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 2459429 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Stock option activity (Details) link:presentationLink link:calculationLink link:definitionLink 2460430 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Stock option information (Details) link:presentationLink link:calculationLink link:definitionLink 2461431 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Market-based options vesting prices (Details) link:presentationLink link:calculationLink link:definitionLink 2462432 - Disclosure - SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Restricted stock awards (Details) link:presentationLink link:calculationLink link:definitionLink 2463433 - 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 2164118 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 2365313 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 2466434 - Disclosure - REVENUE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2467435 - Disclosure - REVENUE - Schedule of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 2468436 - Disclosure - REVENUE - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 2169119 - Disclosure - COST OF REVENUE link:presentationLink link:calculationLink link:definitionLink 2370314 - Disclosure - COST OF REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 2471437 - Disclosure - COST OF REVENUE (Details) link:presentationLink link:calculationLink link:definitionLink 2172120 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES link:presentationLink link:calculationLink link:definitionLink 2373315 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Tables) link:presentationLink link:calculationLink link:definitionLink 2474438 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Details) link:presentationLink link:calculationLink link:definitionLink 2175121 - Disclosure - OTHER INCOME (EXPENSE), NET link:presentationLink link:calculationLink link:definitionLink 2376316 - Disclosure - OTHER INCOME (EXPENSE), NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2477439 - Disclosure - OTHER INCOME (EXPENSE), NET (Details) link:presentationLink link:calculationLink link:definitionLink 2178122 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 2379317 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 2480440 - Disclosure - INCOME TAXES - Components of Income Before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2481441 - Disclosure - INCOME TAXES - Income Tax (Provision) Benefit (Details) link:presentationLink link:calculationLink link:definitionLink 2482442 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2483443 - Disclosure - INCOME TAXES - Summary of Tax Effects of Temporary Differences (Details) link:presentationLink link:calculationLink link:definitionLink 2484444 - Disclosure - INCOME TAXES - Reconciliation of Luxembourg Statutory Tax Rate to Effective Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 2485445 - Disclosure - INCOME TAXES - Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 2186123 - Disclosure - EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 2387318 - Disclosure - EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 2488446 - Disclosure - EARNINGS PER SHARE - Summary of Basic and Diluted Loss per Share (Details) link:presentationLink link:calculationLink link:definitionLink 2489447 - Disclosure - EARNINGS PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2190124 - Disclosure - RESTRUCTURING CHARGES link:presentationLink link:calculationLink link:definitionLink 2491448 - Disclosure - RESTRUCTURING CHARGES (Details) link:presentationLink link:calculationLink link:definitionLink 2192125 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS link:presentationLink link:calculationLink link:definitionLink 2393319 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS (Tables) link:presentationLink link:calculationLink link:definitionLink 2494449 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS (Details) link:presentationLink link:calculationLink link:definitionLink 2495450 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Lease Term and Assumption (Details) link:presentationLink link:calculationLink link:definitionLink 2496451 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Lease Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2497452 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Maturities of Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2497452 - Disclosure - COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Maturities of Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2198126 - Disclosure - SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS link:presentationLink link:calculationLink link:definitionLink 2499453 - Disclosure - SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS (Details) link:presentationLink link:calculationLink link:definitionLink