| **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                                                                  | 14.30%          | 19.70% | 35.90% |
| Percentage of Accounts Receivable Balance at Year-End                                  |            | 11.10% |   |
| Concord Energy                                                                         |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 23.20%          | 18.30% | 0.00% |
| Percentage of Accounts Receivable Balance at Year-End                                  | 11.30%          | 10.30% |   |
| Shell Trading Company                                                                  |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 13.80%          | 0.00% | 0.00% |
| DCP Midstream, LP                                                                      |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 13.20%          | 15.10% | 13.90% |
| Teppco Crude Oil                                                                       |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 0.00%           | 12.90% | 8.00% |

| X                                                                                                                                                                                                                                                                      |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Major Accounts Receivable Customer Percentage
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                  |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
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| 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 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592Reference 2: 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=49121117&loc=d3e13531-108611Reference 3: 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=51801978&loc=d3e6404-108592Reference 4: 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=49121117&loc=d3e13537-108611
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| X                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_ConcentrationRiskByTypeAxis=pdce_SuncorEnergyMarketingIncMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_ConcentrationRiskByTypeAxis=pdce_ConcordEnergyMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_ConcentrationRiskByTypeAxis=pdce_ShellTradingCompanyMember**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                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
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