| **CONCENTRATION OF RISK Customer Constituting 10% or more of Total Revenue (Details)** | 12 Months Ended                                                                                                                |
|----------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------|
||
| Suncor Energy Marketing, Inc.                                                          |                                                                                                                           |   |   |
| **Concentration Risk [Line Items]**                                                    |                                                                                                                           |   |   |
| Percentage of Revenue                                                                  | 19.70%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_SuncorEnergyMarketingIncMember           | 35.90%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_SuncorEnergyMarketingIncMember | 39.10%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_SuncorEnergyMarketingIncMember |
| Percentage of Accounts Receivable Balance at Year-End                                  | 11.10%pdce_MajorAccountsReceivableCustomerPercentage/ us-gaap_ConcentrationRiskByTypeAxis= pdce_SuncorEnergyMarketingIncMember |   |   |
| Concord Energy                                                                         |                                                                                                                           |   |   |
| **Concentration Risk [Line Items]**                                                    |                                                                                                                           |   |   |
| Percentage of Revenue                                                                  | 18.30%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_ConcordEnergyMember                      | 0.00%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_ConcordEnergyMember | 0.00%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_ConcordEnergyMember |
| Percentage of Accounts Receivable Balance at Year-End                                  | 10.30%pdce_MajorAccountsReceivableCustomerPercentage/ us-gaap_ConcentrationRiskByTypeAxis= pdce_ConcordEnergyMember            |   |   |
| DCP Midstream, LP                                                                      |                                                                                                                           |   |   |
| **Concentration Risk [Line Items]**                                                    |                                                                                                                           |   |   |
| Percentage of Revenue                                                                  | 15.10%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_DcpMidstreamLpMember                     | 13.90%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_DcpMidstreamLpMember | 16.00%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_DcpMidstreamLpMember |
| Teppco Crude Oil                                                                       |                                                                                                                           |   |   |
| **Concentration Risk [Line Items]**                                                    |                                                                                                                           |   |   |
| Percentage of Revenue                                                                  | 12.90%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_TeppcoCrudeOilMember                     | 8.00%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_TeppcoCrudeOilMember | 2.40%us-gaap_ConcentrationRiskPercentage1/ us-gaap_ConcentrationRiskByTypeAxis= pdce_TeppcoCrudeOilMember |

| X                                                                                                                                                                                                                                                                      |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Major Accounts Receivable Customer Percentage
+ References
No definition available.
+ Details**Name:**pdce_MajorAccountsReceivableCustomerPercentage**Namespace Prefix:**pdce_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_ConcentrationRiskLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592
+ Details**Name:**us-gaap_ConcentrationRiskPercentage1**Namespace Prefix:**us-gaap_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_ConcentrationRiskByTypeAxis=pdce_ConcordEnergyMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_ConcentrationRiskByTypeAxis=pdce_DcpMidstreamLpMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_ConcentrationRiskByTypeAxis=pdce_SuncorEnergyMarketingIncMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_ConcentrationRiskByTypeAxis=pdce_TeppcoCrudeOilMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |