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Long-term Debt - Scheduled Principal Payments Due on Long-term Debt (Details)
$ in Millions
Dec. 31, 2023
USD ($)
Face Amount  
Long-term Debt by Maturity  
2024 $ 24.8
2025 381.9
2026 29.2
2027 43.2
2028 831.7
Thereafter 1,445.3
Total 2,756.1
Net Amount  
Long-term Debt by Maturity  
2024 24.8
2025 380.5
2026 29.2
2027 43.2
2028 816.8
Thereafter 1,418.1
Total $ 2,712.6