v3.8.0.1

Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2017
Summary of Significant Accounting Policies |
Schedule of investment in property and equipment | Our investment in property and equipment was as follows as of December 31, 2016 and September 30, 2017 (in thousands):
|  | Estimated useful lives |  | December 31, 2016 |  | September 30, 2017 |
Land |  | n/a |  | $ | 11,338 |  |  | 14,850 |
Fresh water surface pipelines and equipment |  | 5 years |  |  | 39,562 |  |  | 46,183 |
Above ground storage tanks |  | 10 years |  |  | 4,301 |  |  | 4,301 |
Fresh water permanent buried pipelines and equipment |  | 20 years |  |  | 443,453 |  |  | 472,012 |
Gathering systems and facilities |  | 20 years |  |  | 1,551,771 |  |  | 1,774,221 |
Construction-in-progress |  | n/a |  |  | 400,096 |  |  | 539,883 |
Total property and equipment |  |  |  |  | 2,450,521 |  |  | 2,851,450 |
Less accumulated depreciation |  |  |  |  | (254,642) |  |  | (343,246) |
Property and equipment, net |  |  |  | $ | 2,195,879 |  |  | 2,508,204 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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