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CONSOLIDATED STATEMENTS OF CASH FLOWS (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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| Reconciliation of net income to net cash provided by operating activities: | ||
| Net income | $ 6,529us-gaap_NetIncomeLoss | $ (355)us-gaap_NetIncomeLoss |
| Deferred income taxes | 2,956us-gaap_DeferredIncomeTaxExpenseBenefit | (2,778)us-gaap_DeferredIncomeTaxExpenseBenefit |
| Items not affecting cash: | ||
| Depreciation, depletion, and accretion | 21,276ipi_DepreciationDepletionAmortizationAndAccretion | 19,649ipi_DepreciationDepletionAmortizationAndAccretion |
| Stock-based compensation | 1,062us-gaap_ShareBasedCompensation | 1,028us-gaap_ShareBasedCompensation |
| Lower-of-cost-or-market inventory adjustments | 360us-gaap_InventoryWriteDown | 3,566us-gaap_InventoryWriteDown |
| Other | 378us-gaap_OtherNoncashIncomeExpense | 223us-gaap_OtherNoncashIncomeExpense |
| Changes in operating assets and liabilities: | ||
| Trade accounts receivable, net | (9,955)us-gaap_IncreaseDecreaseInAccountsReceivable | (9,431)us-gaap_IncreaseDecreaseInAccountsReceivable |
| Other receivables, net | 319us-gaap_IncreaseDecreaseInOtherReceivables | (3,316)us-gaap_IncreaseDecreaseInOtherReceivables |
| Refundable income taxes | 41us-gaap_IncreaseDecreaseInIncomeTaxesReceivable | 2,025us-gaap_IncreaseDecreaseInIncomeTaxesReceivable |
| Inventory, net | 7,954us-gaap_IncreaseDecreaseInInventories | 6,743us-gaap_IncreaseDecreaseInInventories |
| Prepaid expenses and other assets | 666us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 1,005us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets |
| Accounts payable, accrued liabilities, and accrued employee compensation and benefits | 1,180us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities | (335)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities |
| Other liabilities | (92)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities | (700)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities |
| Net cash provided by operating activities | 32,674us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 17,324us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations |
| Cash Flows from Investing Activities: | ||
| Additions to property, plant, equipment, and mineral properties | (8,678)us-gaap_PaymentsToAcquireProductiveAssets | (31,919)us-gaap_PaymentsToAcquireProductiveAssets |
| Purchases of investments | (27,600)us-gaap_PaymentsToAcquireInvestments | (5)us-gaap_PaymentsToAcquireInvestments |
| Proceeds from sale of investments | 3,838us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments | 18,051us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments |
| Net cash used in investing activities | (32,440)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (13,873)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations |
| Cash Flows from Financing Activities: | ||
| Employee tax withholding paid for restricted stock upon vesting | (1,037)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation | (611)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation |
| Net cash (used in) provided by financing activities | (1,037)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | (611)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations |
| Net Change in Cash and Cash Equivalents | (803)us-gaap_NetCashProvidedByUsedInContinuingOperations | 2,840us-gaap_NetCashProvidedByUsedInContinuingOperations |
| Cash and Cash Equivalents, beginning of period | 67,589us-gaap_CashAndCashEquivalentsAtCarryingValue | 394us-gaap_CashAndCashEquivalentsAtCarryingValue |
| Cash and Cash Equivalents, end of period | 66,786us-gaap_CashAndCashEquivalentsAtCarryingValue | 3,234us-gaap_CashAndCashEquivalentsAtCarryingValue |
| Net cash paid (refunded) during the period for: | ||
| Interest | 161ipi_InterestIncludingSettlementsOnDerivatives | 112ipi_InterestIncludingSettlementsOnDerivatives |
| Income taxes | 11us-gaap_IncomeTaxesPaidNet | (2,025)us-gaap_IncomeTaxesPaidNet |
| Accrued purchases for property, plant, equipment, and mineral properties | $ 2,100us-gaap_CapitalExpendituresIncurredButNotYetPaid | $ 13,172us-gaap_CapitalExpendituresIncurredButNotYetPaid |
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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
Aggregate amount of cash paid during the current period for interest, including settlements on derivatives. No definition available.
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- Definition
Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase (decrease) during the reporting period in other liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current liabilities, other noncurrent liabilities, or a combination of other current and noncurrent liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase (decrease) during the reporting period in other amounts due to the reporting entity, which are not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase (decrease) during the reporting period in the value of prepaid expenses and other assets not separately disclosed in the statement of cash flows, for example, deferred expenses, intangible assets, or income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase (decrease) in cash associated with the entity's continuing operating, investing, and financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label. No definition available.
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- Definition
Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash outflow associated with the purchase of all investments (debt, security, other) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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