Share Incentive and Other Compensation - Employee 401 (k) Plan - Additional Information (Details)	12 Months Ended
	Dec. 31, 2020 USD ($)
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Employer matching contribution	50.00%
Maximum annual contribution per employee	6.00%
Maximum employee annual salary contribution	15.00%
Maximum employee annual salary contribution amount	$ 19,500