Revenues - Schedule of Contract Liabilities (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Contract with Customer, Liability [Roll Forward] | ||
| Balance at beginning of period | $ 4,304 | |
| Deduction for recognition of revenue | (4,827) | $ (15,000) |
| Increase for deferral of shortfall payments | 8,442 | 4,246 |
| Increase for deferral of customer prepayments | 675 | 58 |
| Deduction of shortfall payments due to contract renegotiations | (1,350) | |
| Balance at end of period | $ 7,244 | $ 4,304 |
| X | ||||||||||
- Definition Contract With Customer, Liability, Period Increase From Deferred Payments, Shortfall No definition available.
|
| X | ||||||||||
- Definition Contract with Customer, Liability, Deduction Of Contract Renegotiations No definition available.
|
| X | ||||||||||
- Definition Contract with Customer, Liability, Period Increase From Deferred Payments, Prepayment No definition available.
|
| X | ||||||||||
- Definition Contract with Customer, Liability No definition available.
|
| 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
|
| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|