Quarterly report pursuant to Section 13 or 15(d)

Investing Receivables - Narrative (Details)

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Investing Receivables - Narrative (Details) - Investing Receivables - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accrued interest receivable, net of allowance for credit losses $ 4.5 $ 6.0
Notes receivable, fair value disclosure $ 86.0 $ 84.0
Notes receivable from the City of Huntsville | LW Redstone Company LLC    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest rate 9.95%  
Other investing loan receivable    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Effective interest rate 14.00%