Property and Equipment - Depreciation Expense (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
Depreciation Expense [Line Items] | |||
Total depreciation expense | $ 13,137 | $ 9,018 | $ 5,270 |
Cost of revenue | |||
Depreciation Expense [Line Items] | |||
Total depreciation expense | 9,536 | 6,583 | 4,490 |
Research and development | |||
Depreciation Expense [Line Items] | |||
Total depreciation expense | 670 | 268 | 161 |
Sales and marketing | |||
Depreciation Expense [Line Items] | |||
Total depreciation expense | 120 | 112 | 51 |
General and administrative expenses | |||
Depreciation Expense [Line Items] | |||
Total depreciation expense | $ 2,811 | $ 2,055 | $ 568 |