Revenue - Contract Liability (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2018 |
Dec. 31, 2017 |
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| Contract with Customer, Liability [Roll Forward] | ||
| Beginning balance | $ 7,587 | |
| Adjustments as a result of cumulative catch-up adjustment | (118) | |
| Revenue recognized that was included in the contract liability balance at the beginning of the period | (5,535) | |
| Increase due to cash received, excluding amounts recognized as revenue during the period | 7,627 | |
| Ending balance | 9,561 | |
| Deferred revenue, current | (8,472) | $ (6,508) |
| Deferred revenue, non-current | 1,089 | $ 1,079 |
| Deferred revenue | 9,561 | |
| Remaining performance obligation | $ 1,100,000 | |
| Percent of remaining performance obligation expected to be satisfied in 2018 | 16.00% | |
| Percent of remaining performance obligation expected to be satisfied by 2020 | 33.00% |
| X | ||||||||||
- Definition Contract with Customer, Liability, Cash Received Net of Revenue Recognized No definition available.
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- Definition Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue No definition available.
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- Definition Contract with Customer, Liability [Roll Forward] No definition available.
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- Definition Revenue, Remaining Performance Obligation, Expected Recognition, Remainder of Fiscal Year, Percent No definition available.
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- Definition Revenue, Remaining Performance Obligation, Expected Recognition, Years Two and Three, Percent No definition available.
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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/presentationRef
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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/presentationRef
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| X | ||||||||||
- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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/presentationRef
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