Revenue - Additional Information (Details) $ in Thousands |
6 Months Ended |
|---|---|
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Jun. 30, 2019
USD ($)
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| Revenue Recognition [Abstract] | |
| Payment term on product sales | 30 days |
| Payment term on installation services | 30 days |
| Payment term on contractually determined milestones | 30 days |
| Payment term on energy production contract invoices | 30 days |
| Revenue recognized that was in unbilled revenue at beginning of period | $ 1,400 |
| Revenue billed this period that had been recognized in previous periods | 3,700 |
| Deferred revenue recognized | 1,400 |
| Cash payments received in advance of satisfying performance obligations | 379 |
| Remaining performance obligations | $ 20,400 |
| Performance obligation revenue expected to be recognized over the next 24 months (percent) | 93.00% |
| Performance obligation revenue to be recognized in first 12 months (percent) | 29.00% |
| Performance obligation revenue to be recognized over the subsequent 12 months (percent) | 64.00% |
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- Definition Payment Term on Contractually Determined Milestones No definition available.
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- Definition Payment Term on Energy Production Contract Invoices No definition available.
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- Definition Payment Term on Installation Services No definition available.
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- Definition Payment Term on Product Sales No definition available.
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- Definition Performance Obligation Recognized in Year Two, Percent No definition available.
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- Definition Performance Obligation Recognized over Next Twelve Months, Percent No definition available.
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- Definition Performance Obligation Recognized over Next Two Years, Percent No definition available.
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- Definition Unbilled Revenue, Revenue Recognized No definition available.
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- Definition Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase (decrease) in deferred revenue. No definition available.
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- Definition Amount of revenue recognized that was previously reported as deferred or unearned revenue. No definition available.
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- References No definition available.
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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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