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v3.20.1

Debt (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2020
Debt |
Summary of debt | ​
​ | ​ | ​ | ​ | ​ | ​
​ | March 31, | ​ | December 31,
​ | 2020 |  | 2019
​ | (in millions)
Unsecured revolving credit facility due September 30, 2021 | $ | 631.0 | ​ | $ | 368.0
Unsecured term loan due from June 30, 2020 to September 30, 2021 | ​ | 450.0 | ​ | ​ | 465.0
Senior unsecured notes due April 15, 2023 | ​ | 500.0 | ​ | ​ | 500.0
Senior unsecured notes due November 15, 2036 | ​ | 250.0 | ​ | ​ | 250.0
Other notes and revolving credit facilities | ​ | 13.2 | ​ | ​ | 13.3
Total | ​ | 1,844.2 | ​ | ​ | 1,596.3
Less: unamortized discount and debt issuance costs | ​ | (7.1) | ​ | ​ | (7.8)
Less: amounts due within one year and short-term borrowings | ​ | (64.8) | ​ | ​ | (64.9)
Total long-term debt | $ | 1,772.3 | ​ | $ | 1,523.6

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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