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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Assets: |  |
Marketable equity securities | $ 4,429 | $ 4,317
Treasury discount notes | 111,130 | 235,056
Investment in MGM | 2,842,661 | 2,170,182
Other non-current assets | 486,638 | 625,774
Total assets | 4,045,444 | 3,472,420
Dotdash Meredith Term Loan B Facility | Interest rate swaps | Dotdash Meredith |  |
Assets: |  |
Notional amount | 350,000 |
Quoted Market Prices for Identical Assets in Active Markets (Level 1) |  |
Assets: |  |
Marketable equity securities | 4,429 | 4,317
Treasury discount notes | 0 | 0
Investment in MGM | 2,842,661 | 2,170,182
Total assets | 3,848,022 | 3,037,328
Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Marketable equity securities | 0 | 0
Treasury discount notes | 111,130 | 235,056
Investment in MGM | 0 | 0
Total assets | 158,354 | 388,293
Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Marketable equity securities | 0 | 0
Treasury discount notes | 0 | 0
Investment in MGM | 0 | 0
Total assets | 39,068 | 46,799
Money market funds |  |
Assets: |  |
Cash equivalents | 1,000,932 | 862,829
Money market funds | Quoted Market Prices for Identical Assets in Active Markets (Level 1) |  |
Assets: |  |
Cash equivalents | 1,000,932 | 862,829
Money market funds | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Cash equivalents | 0 | 0
Money market funds | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Cash equivalents | 0 | 0
Treasury discount notes |  |
Assets: |  |
Cash equivalents | 24,871 | 137,219
Treasury discount notes | Quoted Market Prices for Identical Assets in Active Markets (Level 1) |  |
Assets: |  |
Cash equivalents | 0 | 0
Treasury discount notes | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Cash equivalents | 24,871 | 137,219
Treasury discount notes | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Cash equivalents | 0 | 0
Time deposits |  |
Assets: |  |
Cash equivalents | 17,964 | 16,018
Time deposits | Quoted Market Prices for Identical Assets in Active Markets (Level 1) |  |
Assets: |  |
Cash equivalents | 0 | 0
Time deposits | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Cash equivalents | 17,964 | 16,018
Time deposits | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Cash equivalents | 0 | 0
Warrant |  |
Assets: |  |
Other non-current assets | 39,068 | 46,799
Warrant | Quoted Market Prices for Identical Assets in Active Markets (Level 1) |  |
Assets: |  |
Other non-current assets | 0 | 0
Warrant | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Other non-current assets | 0 | 0
Warrant | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Other non-current assets | 39,068 | $ 46,799
Interest rate swaps |  |
Assets: |  |
Other non-current assets | 4,389 |
Interest rate swaps | Quoted Market Prices for Identical Assets in Active Markets (Level 1) |  |
Assets: |  |
Other non-current assets | 0 |
Interest rate swaps | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Other non-current assets | 4,389 |
Interest rate swaps | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Other non-current assets | $ 0 |

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