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v3.8.0.1

Subsequent Events (Details) |  | 3 Months Ended
--- | --- | ---
Apr. 26, 2018 USD ($) shares | Mar. 31, 2018 USD ($) | Mar. 31, 2017 USD ($)
Subsequent Events |  |  |
Repayments of long-term debt |  | $ 146,636,000 | $ 817,000,000
Partnership Credit Facility | Revolving Credit Facility |  |  |
Subsequent Events |  |  |
Revolving credit facility borrowing capacity |  | 1,100,000,000.0 |
Outstanding letter of credit |  | $ 0 |
Subsequent Event | Partnership Credit Facility | Revolving Credit Facility |  |  |
Subsequent Events |  |  |
Revolving credit facility borrowing capacity | $ 1,250,000,000.00 |  |
Undrawn capacity under revolving credit facility | 500,000,000 |  |
Repayments of long-term debt | 63,200,000 |  |
Outstanding letter of credit | 15,400,000 |  |
Subsequent Event | Partnership Credit Facility | Letter of Credit |  |  |
Subsequent Events |  |  |
Revolving credit facility borrowing capacity | $ 50,000,000 |  |
Subsequent Event | Partnership Merger | Common Stock |  |  |
Subsequent Events |  |  |
Business acquisition, shares acquired (shares) | shares | 41.2 |  |
Share conversion rate (per share) | 1.40 |  |
Value of shares used as consideration | $ 625,300,000 |  |

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