Annual report pursuant to Section 13 and 15(d)

Investments (Details)

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Investments (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Investment [Line Items]      
Due to Affiliate $ 43,100,000 $ 44,200,000  
Related Party Transaction, Purchases from Related Party 137,700,000 135,100,000 $ 91,000,000
Commercial Paper 3,700,000 0  
Financial Instruments, Owned, US Government and Agency Obligations, at Fair Value 800,000 800,000  
Available-for-sale Securities 4,500,000 800,000  
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities $ 56,400,000 $ 55,900,000  
TMC [Member]      
Investment [Line Items]      
Percentage of Ownership in Bella 50.00%