Other Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		111 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2031	Dec. 31, 2021	Dec. 31, 2020
Schedule of Other Assets [Line Items]
Prepaid expenses, net of current portion	$ 18,753		$ 18,753			$ 19,852
Capital contributions	$ 0	$ 327	$ 48	$ 589
Minimum | Limited Partnerships
Schedule of Other Assets [Line Items]
Ownership percentage	3.00%		3.00%
Maximum | Limited Partnerships
Schedule of Other Assets [Line Items]
Ownership percentage	5.00%		5.00%
Scenario, Forecast
Schedule of Other Assets [Line Items]
Capital contributions					$ 2,800
Jack Welch Management Institute
Schedule of Other Assets [Line Items]
Commitment for future services under the perpetual license agreement							$ 25,300
Prepaid expenses, net of current portion	$ 18,000		$ 18,000			$ 19,200
Prepaid expense, amortization period			15 years