0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED BALANCE SHEET link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED BALANCE SHEET (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENT OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED STATEMENT OF COMPREHENSIVE OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONSOLIDATED STATEMENT OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - ORGANIZATION link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - GOODWILL AND INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - LONG-TERM DEBT link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - SHAREDHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - SEGMENT INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - EARNINGS (LOSS) PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - FINANCIAL STATEMENT DETAILS link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - DISCONTINUED OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - GOODWILL AND INTANGIBLE ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - LONG-TERM DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - SEGMENT INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - EARNINGS (LOSS) PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - FINANCIAL STATEMENT DETAILS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - DISCONTINUED OPERATIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - ORGANIZATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Capitalized Contract Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - General Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounts Receivable, Net of the Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash and Cash Equivalents and Investments in Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Equity Price Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Interest Rate Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Capitalized Software, Equipment, Buildings, Leasehold Improvements and Land (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Indefinite-Lived Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Long-Lived Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Advertising Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Pension and Post-Retirement Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Redeemable Noncontrolling Interests (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Investments in MGM Resorts International (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Long-term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Realized and Unrealized Gains and Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Summary (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Goodwill by Reporting Unit (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Intangible Assets with Definite Lives (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Expected Amortization of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - LEASES - Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - LEASES - Lease Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - LEASES - Operating Lease Liabilities Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - LEASES - Operating Lease Liabilities Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - LEASES - Weighted-Average Remaining Term and Discount Rate (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - LEASES - Other Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - LONG-TERM DEBT - Schedule of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - LONG-TERM DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - LONG-TERM DEBT - Aggregate Contractual Maturities of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - LONG-TERM DEBT - Debt Instrument Redemption (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - SHAREDHOLDERS' EQUITY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - SEGMENT INFORMATION - Revenue by Reportable Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - SEGMENT INFORMATION - Revenue Disaggregated by Service (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - SEGMENT INFORMATION - Segment Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - SEGMENT INFORMATION - Summary of Adjusted EBITDA (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - SEGMENT INFORMATION - Reconciliation of Adjusted EBITDA to Operating Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - SEGMENT INFORMATION - Capital Expenditures by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - SEGMENT INFORMATION - Revenue and Long-Lived Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - SEGMENT INFORMATION - Customer Concentration (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - STOCK-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - STOCK-BASED COMPENSATION - Unvested RSUs (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - STOCK-BASED COMPENSATION - Changes in Outstanding Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - STOCK-BASED COMPENSATION - Stock Options Outstanding and Exercisable (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Changes in Benefit Obligation and Changes in Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Amount Recognized in the Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Pension Plans with Projected Benefit Obligations and Accumulated Benefit Obligations in Excess of Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Net Periodic Benefit (Credit) Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Weighted Average Assumptions Used (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Fair Value of Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955579 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Level 3 Reconciliation of Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955580 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Expected Future Benefit Payment (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - Disclosure - INCOME TAXES - Income before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955582 - Disclosure - INCOME TAXES - Components of Income Tax Benefit (Expense ) (Details) link:presentationLink link:calculationLink link:definitionLink 9955583 - Disclosure - INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955584 - Disclosure - INCOME TAXES - Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955585 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955586 - Disclosure - INCOME TAXES - Income Tax Paid (Details) link:presentationLink link:calculationLink link:definitionLink 9955587 - Disclosure - INCOME TAXES - Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955588 - Disclosure - EARNINGS (LOSS) PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955589 - Disclosure - EARNINGS (LOSS) PER SHARE - Summary (Details) link:presentationLink link:calculationLink link:definitionLink 9955590 - Disclosure - FINANCIAL STATEMENT DETAILS - Cash, Cash Equivalents, and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 9955591 - Disclosure - FINANCIAL STATEMENT DETAILS - Changes in the Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955592 - Disclosure - FINANCIAL STATEMENT DETAILS - Other Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955593 - Disclosure - FINANCIAL STATEMENT DETAILS - Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955594 - Disclosure - FINANCIAL STATEMENT DETAILS - Accrued Expenses and Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955595 - Disclosure - FINANCIAL STATEMENT DETAILS - Other (Expense) Income, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955596 - Disclosure - FINANCIAL STATEMENT DETAILS - Supplemental Disclosure of Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955597 - Disclosure - CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955598 - Disclosure - RELATED PARTY TRANSACTIONS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955599 - Disclosure - DISCONTINUED OPERATIONS - Assets and Liabilities of Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955600 - Disclosure - DISCONTINUED OPERATIONS - Components of Earnings (Loss) from Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955601 - Disclosure - SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) link:presentationLink link:calculationLink link:definitionLink