Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Prepaid Expense and Other Assets, Current [Abstract] | ||
| Prepaid technology | $ 7,835 | $ 6,766 |
| Advance payroll taxes | 7,803 | 0 |
| Non-Income Tax Receivable | 5,893 | 5,628 |
| Prepaid conference | 2,805 | 0 |
| Prepaid outside information services | 1,951 | 1,515 |
| Restricted cash | 158 | 158 |
| Other | 10,471 | 9,490 |
| Total prepaid expenses and other current assets | $ 36,916 | $ 23,557 |
| X | ||||||||||
- Definition Non-Income Tax Receivable No definition available.
|
| X | ||||||||||
- Definition Prepaid Conference No definition available.
|
| X | ||||||||||
- Definition Represents the amount of prepaid outside information services. No definition available.
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for technology that provides economic benefits within a future period of one year or the normal operating cycle, if longer. No definition available.
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|