Revenue - Contract Assets and Deferred Revenue (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Contract assets - current	$ 950	$ 119
Total contract assets	1,877	412
Deferred revenue	19,060	3,983
Deferred revenue - non-current	6,107	8,865
Total deferred revenue	25,167	12,848
Prepaid expenses and other current assets
Disaggregation of Revenue [Line Items]
Contract assets - current	950	118
Other assets
Disaggregation of Revenue [Line Items]
Contract assets - non-current	927	294
Accrued expenses and other current liabilities
Disaggregation of Revenue [Line Items]
Deferred revenue	19,060	3,983
Other liabilities
Disaggregation of Revenue [Line Items]
Deferred revenue - non-current	$ 6,107	$ 8,865