Notes Payable and Indebtedness - Maturities and Interest Payments (Details) $ in Millions	Dec. 31, 2020 USD ($)
2021
Principal	$ 28.3
Interest	181.1
Total Debt	209.4
2022
Principal	28.3
Interest	183.0
Total Debt	211.3
2023
Principal	28.3
Interest	181.9
Total Debt	210.2
2024
Principal	28.3
Interest	180.7
Total Debt	209.0
2025
Principal	28.3
Interest	179.6
Total Debt	207.9
Thereafter
Principal	3,539.5
Interest	109.0
Total Debt	3,648.5
Total
Principal	3,681.0
Interest	1,015.3
Total Debt	$ 4,696.3

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