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v3.21.2

Fair Value Measurements - Summary of Non-Recurring Fair Value Measurement (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Property and equipment |  |  |  |  |
Net Carrying Value | $ 722,646 |  | $ 722,646 |  | $ 815,009
Goodwill |  |  |  |  |
Excess purchase price over fair value of net assets acquired | 3,874,743 |  | 3,874,743 |  | 3,821,609
Other intangible assets |  |  |  |  |
Net Carrying Value | 1,345,646 |  | 1,345,646 |  | 1,367,913
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |
Net Carrying Value | 19,730,360 |  | 19,730,360 |  | $ 18,039,143
Total Impairment Charges | $ 0 | $ 0 | $ 0 | $ 75,171 |
Fair Value, Nonrecurring |  |  |  |  |
Property and equipment |  |  |  |  |
Net Carrying Value |  | 9,565 |  | 9,565 |
Total Impairment Charges |  |  |  | 21,663 |
Goodwill |  |  |  |  |
Excess purchase price over fair value of net assets acquired |  | 431,389 |  | 431,389 |
Total Impairment Charges |  |  |  | 25,000 |
Other intangible assets |  |  |  |  |
Net Carrying Value |  | 12,842 |  | 12,842 |
Total Impairment Charges |  |  |  | 28,508 |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |
Net Carrying Value |  | 453,796 |  | 453,796 |
Total Impairment Charges |  |  |  | 75,171 |
Fair Value, Nonrecurring | Level 1 |  |  |  |  |
Property and equipment |  |  |  |  |
Fair Value Measured and Recorded |  | 0 |  | 0 |
Goodwill |  |  |  |  |
Fair Value Measured and Recorded |  | 0 |  | 0 |
Other intangible assets |  |  |  |  |
Fair Value Measured and Recorded |  | 0 |  | 0 |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |
Total assets at fair value |  | 0 |  | 0 |
Fair Value, Nonrecurring | Level 2 |  |  |  |  |
Property and equipment |  |  |  |  |
Fair Value Measured and Recorded |  | 0 |  | 0 |
Goodwill |  |  |  |  |
Fair Value Measured and Recorded |  | 0 |  | 0 |
Other intangible assets |  |  |  |  |
Fair Value Measured and Recorded |  | 0 |  | 0 |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |
Total assets at fair value |  | 0 |  | 0 |
Fair Value, Nonrecurring | Level 3 |  |  |  |  |
Property and equipment |  |  |  |  |
Fair Value Measured and Recorded |  | 9,565 |  | 9,565 |
Goodwill |  |  |  |  |
Fair Value Measured and Recorded |  | 431,389 |  | 431,389 |
Other intangible assets |  |  |  |  |
Fair Value Measured and Recorded |  | 12,842 |  | 12,842 |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |
Total assets at fair value |  | $ 453,796 |  | $ 453,796 |

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