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Debt (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Sep. 30, 2020
--- | --- | ---
Debt |  |
Total debt | $ 2,090,100 | $ 2,085,000
Less: Current portion of debt and short-term borrowings | (24,300) | (20,900)
Less: Unamortized debt issuance costs | (21,400) | (23,000)
Long-term debt | 2,044,358 | 2,041,136
2014 Credit Agreement |  |
Debt |  |
Total debt | 247,000 | 248,500
2024 Senior Notes |  |
Debt |  |
Total debt | 797,300 | 797,300
2017 Senior Notes |  |
Debt |  |
Total debt | 997,300 | 997,300
Other Debt |  |
Debt |  |
Total debt | $ 48,500 | $ 41,900

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