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Basis of Presentation and Summary of Significant Accounting Policies Leases, Impact of New Accounting Standard Adoption (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
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Leases, Initial Application Period Cumulative Effect Transition [Line Items] |  |
Prepaid expenses and other current assets | $ 176,545 | $ 151,102
Intangible assets, net | 6,234,528 | 6,669,645
Other assets | 324,453 | 247,519
Accrued expenses and other current liabilities | 612,921 | 477,366
Other liabilities | $ 509,876 | $ 305,435

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