Employee Benefit Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Contribution Plan Disclosure [Line Items]
Percentage of amount vested to defined contribution retirement savings plan	100.00%
Description of vesting rights	For employees hired on or after January 1, 2020, the participant is 100% vested in the company’s matching contribution after two years of service. Employees hired before January 1, 2020 are fully vested in the company’s matching contribution
Expense for continuing and discontinued operations under employee benefit plan	$ 3,000,000.0	$ 3,000,000.0	$ 2,600,000
Percentage of fair market value of common stock	95.00%
Percentage of salary contribution limited to an employee under employee stock purchase plan	10.00%
Maximum salary of employee allowed to purchase shares under employee stock purchase plan	$ 25,000
Common stock issued under employee stock purchase plan	3,400,000
0-2% Contribution [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of amount contributed to defined contribution retirement savings plan	50.00%	50.00%	50.00%
3-6% Contribution [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of amount contributed to defined contribution retirement savings plan	25.00%	25.00%	25.00%
Minimum number of hours worked	1000 hours
Employee Stock Purchase Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Authorized to grant the common stock under the employee stock purchase plan	4,000,000.0