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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred tax assets: |  |
Property and equipment | $ 2,770 | $ 2,636
Accruals and reserves | 48 | 173
Lease liability | 9,014 | 9,984
Compensation and benefits | 15,266 | 19,035
Deferred revenue | 21,709 | 11,753
Net operating loss and credits | 150,448 | 91,300
Interest expense | 4,035 | 2,521
Other | 546 | 347
Total deferred tax assets | 203,836 | 137,749
Valuation allowance | (174,771) | (111,402)
Total deferred tax assets | 29,065 | 26,347
Deferred tax liabilities: |  |
Property and equipment | (48) | (10)
Right-of-use asset | (8,275) | (8,772)
Convertible notes | (10,916) | (13,076)
Acquired intangibles | (2,022) | 0
Deferred commissions | (6,761) | (3,900)
Other deferred tax liabilities | (321) | (222)
Deferred tax liabilities | (28,343) | (25,980)
Total | $ 722 | $ 367

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