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Supplemental Cash Flow Information (Tables) | 3 Months Ended
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Dec. 31, 2017
Supplemental Cash Flow Information |
Schedule of supplemental cash flow information |
|  | Three Months Ended |
|  | December 31, |
|  | 2017 |  | 2016 |
|  | (in thousands) |
Capital expenditures incurred |  | $ | 96,146 |  | $ | 92,141 |
Additions incurred in prior year but paid for in current year |  |  | 20,004 |  |  | 9,465 |
Additions incurred but not paid for as of the end of the period |  |  | (24,452) |  |  | (19,479) |
Capital expenditures per Consolidated Statements of Cash Flows |  | $ | 91,698 |  | $ | 82,127 |

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