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Property and Equipment (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Property and Equipment, Net |  |
Finance lease right-of-use assets | $ 8,263 | $ 10,045
Property and equipment and finance lease, gross | 226,779 | 204,165
Less: accumulated depreciation | (111,132) | (98,110)
Total | 115,647 | 106,055
Computer equipment and software |  |
Property and Equipment, Net |  |
Property and equipment gross | 114,669 | 107,666
Internal-use software development costs |  |
Property and Equipment, Net |  |
Property and equipment gross | $ 103,847 | $ 86,454

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