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Debt (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Sep. 30, 2019
--- | --- | ---
Debt |  |
Debt | $ 2,085,000 | $ 3,352,500
Less: Current portion of debt and short-term borrowings | (20,900) | (98,300)
Less: Unamortized debt issuance costs | (23,000) | (36,200)
Long-term debt | 2,041,136 | 3,217,985
2014 Credit Agreement |  |
Debt |  |
Debt | 248,500 | 1,182,200
2014 Senior Notes |  |
Debt |  |
Debt | 797,300 | 800,000
2017 Senior Notes |  |
Debt |  |
Debt | 997,300 | 1,000,000
URS Senior Notes |  |
Debt |  |
Debt |  | 248,100
Other Debt |  |
Debt |  |
Debt | $ 41,900 | $ 122,200

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