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Other Assets - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 144 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2031
Dec. 31, 2023
Dec. 31, 2020
Schedule of Other Assets [Line Items]              
Prepaid expenses, net of current portion $ 16,172   $ 16,172     $ 16,679  
Capital contributions $ 62 $ 34 $ 96 $ 152      
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%        
Forecast              
Schedule of Other Assets [Line Items]              
Capital contributions         $ 2,300    
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 $ 15,400   $ 15,400     $ 16,200  
Prepaid expense, amortization period     15 years