Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended		12 Months Ended
	Dec. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | segment			1
Depreciation expense			$ 1,900,000	$ 2,100,000	$ 2,200,000
Intangible assets, estimated useful life	6 years
Impairment of intangible asset		$ 115,500,000	0	115,527,000	0
Significant uncertain tax positions	$ 0		$ 0	0
Expected dividend yield			0.00%
Selling, General, and Administrative Expenses
Summary Of Significant Accounting Policies [Line Items]
Advertising expenses			$ 8,200,000	$ 5,000,000	$ 6,000,000
Minimum
Summary Of Significant Accounting Policies [Line Items]
Useful life			3 years
Maximum
Summary Of Significant Accounting Policies [Line Items]
Useful life			7 years