Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Compensation	$ 27,016	$ 31,499
Non-income taxes	20,937	17,164
Website hosting and marketing fees	12,831	9,991
Other expenses	13,105	9,255
Total accrued expenses	$ 73,889	$ 67,909