Employee Benefit Plans - Additional Information (Details)	3 Months Ended	4 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($)	Apr. 30, 2021 USD ($)	Sep. 30, 2021 USD ($) executive	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Retirement Benefits [Abstract]
Number of executives participating in SERP | executive			2
Service cost of plan	$ 87,000		$ 199,000	$ 259,000
Interest cost of plan	$ 124,000		138,000	$ 373,000
Supplemental executive retirement plan		$ 20,000,000	0		$ 20,628,000
Employer contributions to benefit plans		$ 0
Defined benefit plan, recognized net gain (loss) due to terminations			$ 1,800,000