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PROPERTY, PLANT, EQUIPMENT, AND MINERAL PROPERTIES (Schedule of Depreciation, Depletion, and Accretion) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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| Property, Plant and Equipment [Abstract] | ||
| Depreciation | $ 18,879us-gaap_Depreciation | $ 18,260us-gaap_Depreciation |
| Depletion | 1,973us-gaap_Depletion | 983us-gaap_Depletion |
| Accretion | 424us-gaap_AssetRetirementObligationAccretionExpense | 406us-gaap_AssetRetirementObligationAccretionExpense |
| Total incurred | $ 21,276ipi_DepreciationDepletionAmortizationAndAccretion | $ 19,649ipi_DepreciationDepletionAmortizationAndAccretion |
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- Definition
The aggregate net amount of depreciation, depletion, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by (used in) operations using the indirect method. No definition available.
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- Definition
Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The noncash expense charged against earnings to recognize the consumption of natural resources. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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