Revenue - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
Jan. 01, 2018 |
Dec. 31, 2017 |
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| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||||
| Unbilled receivables, net | $ 33,970 | $ 47,559 | $ 42,577 | |
| Contract with customer, liability | 4,600 | $ 9,800 | ||
| Contract with Customer, Liability, Revenue Recognized | $ 6,500 | |||
| Concentration risk, percentage | 100.00% | 100.00% | ||
| Revenue, remaining performance obligation | $ 261,000 | |||
| Transferred over Time | Sales Revenue, Net | Product Concentration Risk | ||||
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||||
| Concentration risk, percentage | 57.00% | |||
| Transferred at Point in Time | Sales Revenue, Net | Product Concentration Risk | ||||
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||||
| Concentration risk, percentage | 43.00% | |||
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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- 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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- 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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- Definition Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer. No definition available.
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