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Long-Term Debt - Schedule of Accrued Interest Payable on Long Term Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Total Accrued Interest Payable on Long-Term Debt $ 17,024 $ 11,966
Line of Credit    
Debt Instrument [Line Items]    
Total Accrued Interest Payable on Long-Term Debt $ 5,535 $ 3,364
Convertible notes | 5.625% exchangeable senior notes    
Debt Instrument [Line Items]    
Debt Instrument interest rate (as a percent) 5.625% 5.625%
Total Accrued Interest Payable on Long-Term Debt $ 0 $ 3,896
Convertible notes | 5.75% exchangeable senior notes    
Debt Instrument [Line Items]    
Debt Instrument interest rate (as a percent) 5.75% 5.75%
Total Accrued Interest Payable on Long-Term Debt $ 4,659 $ 2,332
Convertible notes | 7.75% convertible senior notes    
Debt Instrument [Line Items]    
Debt Instrument interest rate (as a percent) 7.75% 7.75%
Total Accrued Interest Payable on Long-Term Debt $ 4,906 $ 741
Trust preferred securities and subordinated notes    
Debt Instrument [Line Items]    
Total Accrued Interest Payable on Long-Term Debt $ 1,924 $ 1,633