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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract] |
Supplemental Cash Flow Information |
| Year Ended December 31, |
| 2018 |  |  | 2017 |  |  | 2016 |
| (in thousands) |
Net cash provided from operating activities included: |  |  |  |  |  |  |  |  |  |  |
Income taxes refunded from taxing authorities | $ | 7,521 |  |  | $ | 1,024 |  |  | $ | 102 |
Interest paid |  | (207,433 | ) |  |  | (179,431 | ) |  |  | (159,875 | )
Non-cash investing and financing activities included: |  |  |  |  |  |  |  |  |  |  |
Asset retirement costs capitalized, net | $ | 28,826 |  |  | $ | 20,245 |  |  | $ | (24,064 | )
(Decrease) increase in accrued capital expenditures |  | (119,021 | ) |  |  | 71,739 |  |  |  | 61,419 |

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- References No definition available. + Details
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