Revenues - Narrative (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Jan. 01, 2018 |
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| Disaggregation of Revenue [Line Items] | |||
| Deferred revenue related to shortfall payments | $ 7,244,000 | $ 4,304,000 | $ 15,000,000 |
| Recognized revenue | 4,827,000 | 15,000,000 | |
| Contract assets | 0 | 0 | $ 0 |
| Shortfall Payments | |||
| Disaggregation of Revenue [Line Items] | |||
| Deferred revenue related to shortfall payments | 7,200,000 | 4,200,000 | |
| Recognized revenue | $ 2,800,000 | $ 1,500,000 | |
| 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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- 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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- 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
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Details
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