Revenues, net - Contracts with Customer, Receivables, Assets and Liabilities (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Revenue from Contract with Customer [Abstract] | ||
| Accounts receivable, net | $ 176,889 | $ 164,752 |
| Contract assets | 5,241 | 5,445 |
| Contract liabilities: | ||
| Deferred revenue (advance payments portion) | 8,906 | 6,345 |
| Consideration received from customer for transitions activities | $ 1,495 | $ 1,669 |
| X | ||||||||||
- Definition Contract From Customer Liability, Consideration Received From Transitions Activities No definition available.
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| X | ||||||||||
- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before 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://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- References No definition available.
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