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Debt - Energy Services (Details) - Term Loan - Line of Credit - USD ($) | Aug. 13, 2019 | Aug. 31, 2019
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Debt Instrument |  |
Debt instrument, term | 7 years |
Energy Services |  |
Debt Instrument |  |
Aggregate principal amount | $ 700,000,000 |
Debt instrument, quarterly payment | $ 1,800,000 |
Basis spread on variable rate (percentage) | 3.75% |
Energy Services | London Interbank Offered Rate (LIBOR) |  |
Debt Instrument |  |
Derivative, fixed interest rate |  | 1.55%

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