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Fair Value Measurements (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Assets: |  |
Cash equivalents | $ 551,449 | $ 500,977
Fair Value, Measurements, Recurring |  |
Assets: |  |
Cash equivalents | 551,449 | 500,977
Restricted cash | 9,062 | 8,537
Interest rate collar | 2,670 |
Liabilities: |  |
Interest rate collar | 817 | 5,548
Fair Value, Measurements, Recurring | Quoted Market Prices in Active Markets (Level 1) |  |
Assets: |  |
Cash equivalents | 0 | 0
Restricted cash | 7,789 | 6,950
Interest rate collar | 0 |
Liabilities: |  |
Interest rate collar | 0 | 0
Fair Value, Measurements, Recurring | Other Observable Inputs (Level 2) |  |
Assets: |  |
Cash equivalents | 551,449 | 500,977
Restricted cash | 1,273 | 1,587
Interest rate collar | 2,670 |
Liabilities: |  |
Interest rate collar | 817 | 5,548
Fair Value, Measurements, Recurring | Unobservable Inputs (Level 3) |  |
Assets: |  |
Cash equivalents | 0 | 0
Restricted cash | 0 | 0
Interest rate collar | 0 |
Liabilities: |  |
Interest rate collar | $ 0 | $ 0

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