Development Services Revenue - Additional Information (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Revenue from Contract with Customer [Abstract] | ||
| Description of payment terms | invoiced with net 30-to 60-day payment terms. | |
| Contract with customer asset net | $ 0 | $ 0 |
| Contract with customer liability | 0 | 0 |
| Contract cost incurred during the period | $ 0 | $ 0 |
| X | ||||||||||
- Definition Contract cost incurred during the period. No definition available.
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Description of payment terms in contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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