XML 69 R59.htm IDEA: XBRL DOCUMENT v3.22.2
Other Assets - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 114 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2031
Dec. 31, 2021
Dec. 31, 2020
Schedule of Other Assets [Line Items]              
Prepaid expenses, net of current portion $ 19,277   $ 19,277     $ 19,852  
Capital contributions $ 48 $ 190 $ 48 $ 262      
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 $ 18,400   $ 18,400     $ 19,200  
Prepaid expense, amortization period     15 years