v3.22.1

Property, Plant, and Equipment | 3 Months Ended
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Mar. 31, 2022
Property, Plant and Equipment [Abstract] |
Property, Plant, and Equipment | 7. PROPERTY, PLANT, AND EQUIPMENT A summary of the historical cost of property, plant, and equipment is as follows:
thousands |  | Estimated Useful Life |  | March 31, 2022 |  | December 31, 2021
Land |  | N/A |  | $ | 10,955 |  |  | $ | 10,955 |
Gathering systems – pipelines |  | 30 years |  | 5,429,779 |  |  | 5,386,003 |
Gathering systems – compressors |  | 15 years |  | 2,203,895 |  |  | 2,172,953 |
Processing complexes and treating facilities |  | 25 years |  | 3,380,819 |  |  | 3,375,317 |
Transportation pipeline and equipment |  | 6 to 45 years |  | 169,380 |  |  | 169,356 |
Produced-water disposal systems |  | 20 years |  | 885,265 |  |  | 882,527 |
Assets under construction |  | N/A |  | 91,268 |  |  | 98,473 |
Other |  | 3 to 40 years |  | 758,997 |  |  | 750,494 |
Total property, plant, and equipment |  |  |  | 12,930,358 |  |  | 12,846,078 |
Less accumulated depreciation |  |  |  | 4,455,162 |  |  | 4,333,171 |
Net property, plant, and equipment |  |  |  | $ | 8,475,196 |  |  | $ | 8,512,907 |
The cost of property classified as “Assets under construction” is excluded from capitalized costs being depreciated. These amounts represent property that is not yet placed into productive service as of the respective balance sheet date. Long-lived asset and other impairments. During the three months ended March 31, 2021, the Partnership recognized impairments of $14.9 million, primarily attributable to $13.5 million of impairments at the DJ Basin complex due to cancellation of projects.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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