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Schedule 2 - Parent Company Financial Statements - Future Minimum Lease Payments (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |
Due Next 12 Months | $ 20.5 | $ 20.5
Due Year Two | 19.3 | 18.4
Due Year Three | 17.0 | 16.9
Due Year Four | 14.7 | 15.0
Due Year Five | 8.3 | 12.5
Due after Year Five | 28.1 | 27.1
Total Future Payments | 107.9 | 110.4
Less Discount | 14.7 |
Present Value of Minimum Lease Payments | 93.2 |
Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Due Next 12 Months | 2.1 |
Due Year Two | 3.5 |
Due Year Three | 3.7 |
Due Year Four | 3.5 |
Due Year Five | 2.5 |
Due after Year Five | 25.6 |
Total Future Payments | 40.9 |
Less Discount | 9.6 |
Present Value of Minimum Lease Payments | $ 31.3 | $ 0.0

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