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ASSET RETIREMENT OBLIGATION (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2015
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Dec. 31, 2013
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| Asset Retirement Obligation Disclosure [Abstract] | ||
| Credit adjusted risk-free rates to discount abandonment liabilities, low end of range (as a percent) | 6.90%ipi_AssetRetirementObligationCreditAdjustedRiskFreeRateToDiscountLiabilitiesLowEndOfRange | |
| Credit adjusted risk-free rates to discount abandonment liabilities, high end of range (as a percent) | 8.50%ipi_AssetRetirementObligationCreditAdjustedRiskFreeRateToDiscountLiabilitiesHighEndOfRange | |
| Asset retirement obligation, current | $ 1.6us-gaap_AssetRetirementObligationCurrent | $ 1.6us-gaap_AssetRetirementObligationCurrent |
| Undiscounted amount of asset retirement obligation | $ 57.7ipi_AssetRetirementObligationUndiscountedAmount |
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- Definition
Represents the high end of the range of the credit adjusted risk-free rate used to discount abandonment liabilities that are associated with an asset retirement obligation. No definition available.
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- Definition
Represents the low end of the range of the credit adjusted risk-free rate used to discount abandonment liabilities that are associated with an asset retirement obligation. No definition available.
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- Definition
The undiscounted amount of the asset retirement obligation. No definition available.
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- Definition
Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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