Restructuring Costs - Additional Information (Details) - USD ($)		12 Months Ended
	Apr. 21, 2020	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring costs		$ 17,789,000
2020 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring, number of positions eliminated, percent	30.00%
2020 Restructuring Plan | Accrued Expenses and Other Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		0
2020 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs		8,000,000.0	$ 0
2020 Restructuring Plan | Terminated Facility Lease and Impaired Internal Software Development Projects
Restructuring Cost and Reserve [Line Items]
Restructuring costs		5,600,000
2020 Restructuring Plan | Impairment of Internally Developed Software
Restructuring Cost and Reserve [Line Items]
Restructuring costs		$ 4,200,000