SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Accrued Expense and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Consolidated Balance Sheet & Statement of Operations Information [Abstract]
Refund reserve	$ 11,072	$ 19,601
Compensation and benefits	15,005	30,367
Accrued marketing	19,596	37,900
Restructuring-related liabilities	4,782	11,349
Customer credits	36,220	56,558	$ 61,006
Operating lease obligations	$ 37,525	$ 32,062
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Total accrued expenses and other current liabilities	Total accrued expenses and other current liabilities
Other	$ 47,252	$ 51,476
Total accrued expenses and other current liabilities	$ 171,452	239,313
Accrued payroll taxes, current, CARES Act		$ 2,700