Annual report pursuant to Section 13 and 15(d)

Prepaid Expenses and Other Current Assets (Details)

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Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Prepaid Expense and Other Assets, Current [Abstract]    
Prepaid technology $ 6,766 $ 1,843
Non-income tax receivable 5,628 2,704
Prepaid outside information services 1,515 1,395
Restricted cash 158 2,000
Income tax receivable 0 1,684
Other 9,490 9,844
Total prepaid expenses and other current assets $ 23,557 $ 19,470