Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Prepaid Expenses and Other Current Assets
Non-income tax receivable	$ 4,370	$ 3,879
Income tax receivable	2,255	1,864
Prepaid insurance	1,125	552
Prepaid technology	1,188	1,318
FinaConnect escrow	2,000	429
Other	9,218	8,182
Total prepaid expenses and other current assets	$ 20,156	$ 16,224