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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Cash flows from operating activities |  |  |
Net income | $ 279,386 us-gaap_NetIncomeLoss | $ 255,215 us-gaap_NetIncomeLoss | $ 37,630 us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Gain on sale of fixed assets | (351)iex_GainsLossesOnSalesAndImpairmentsOfFixedAssets | (96)iex_GainsLossesOnSalesAndImpairmentsOfFixedAssets | 0 iex_GainsLossesOnSalesAndImpairmentsOfFixedAssets
Asset impairments | 2,473 us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf | 2,747 us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf | 198,519 us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
Depreciation and amortization | 33,720 us-gaap_DepreciationAndAmortization | 35,007 us-gaap_DepreciationAndAmortization | 36,827 us-gaap_DepreciationAndAmortization
Amortization of intangible assets | 43,187 us-gaap_AmortizationOfIntangibleAssets | 44,327 us-gaap_AmortizationOfIntangibleAssets | 41,485 us-gaap_AmortizationOfIntangibleAssets
Amortization of debt issuance expenses | 1,723 us-gaap_AmortizationOfFinancingCosts | 1,703 us-gaap_AmortizationOfFinancingCosts | 1,685 us-gaap_AmortizationOfFinancingCosts
Share-based compensation expense | 20,717 us-gaap_ShareBasedCompensation | 16,993 us-gaap_ShareBasedCompensation | 13,102 us-gaap_ShareBasedCompensation
Deferred income taxes | (8,593)us-gaap_DeferredIncomeTaxExpenseBenefit | (3,156)us-gaap_DeferredIncomeTaxExpenseBenefit | (37,229)us-gaap_DeferredIncomeTaxExpenseBenefit
Excess tax benefit from share-based compensation | (6,275)us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities | (8,560)us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities | (4,474)us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
Non-cash interest expense associated with forward starting swaps | 7,223 iex_NonCashInterestExpenseAssociatedWithForwardStartingSwaps | 7,430 iex_NonCashInterestExpenseAssociatedWithForwardStartingSwaps | 7,637 iex_NonCashInterestExpenseAssociatedWithForwardStartingSwaps
Changes in (net of the effect from acquisitions): |  |  |
Receivables | (11,110)us-gaap_IncreaseDecreaseInReceivables | 6,195 us-gaap_IncreaseDecreaseInReceivables | 12,747 us-gaap_IncreaseDecreaseInReceivables
Inventories | (7,821)us-gaap_IncreaseDecreaseInInventories | 9,088 us-gaap_IncreaseDecreaseInInventories | 23,799 us-gaap_IncreaseDecreaseInInventories
Other current assets | (5,201)us-gaap_IncreaseDecreaseInOtherCurrentAssets | 6,562 us-gaap_IncreaseDecreaseInOtherCurrentAssets | (12,127)us-gaap_IncreaseDecreaseInOtherCurrentAssets
Trade accounts payable | (2,466)us-gaap_IncreaseDecreaseInAccountsPayableTrade | 15,460 us-gaap_IncreaseDecreaseInAccountsPayableTrade | (1,376)us-gaap_IncreaseDecreaseInAccountsPayableTrade
Accrued expenses | 23,760 us-gaap_IncreaseDecreaseInAccruedLiabilities | 11,790 us-gaap_IncreaseDecreaseInAccruedLiabilities | 9,944 us-gaap_IncreaseDecreaseInAccruedLiabilities
Other — net | (2,411)us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet | 817 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet | (1,989)us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet
Net cash flows provided by operating activities | 367,961 us-gaap_NetCashProvidedByUsedInOperatingActivities | 401,522 us-gaap_NetCashProvidedByUsedInOperatingActivities | 326,180 us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash flows from investing activities |  |  |
Purchases of property, plant and equipment | (47,997)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (31,536)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (35,807)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Acquisition of businesses, net of cash acquired | (25,443)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | (36,849)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | (68,930)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Proceeds from fixed asset disposals | 1,460 iex_ProceedsFromDispositionsOfAssets | 567 iex_ProceedsFromDispositionsOfAssets | 0 iex_ProceedsFromDispositionsOfAssets
Other — net | (280)us-gaap_PaymentsForProceedsFromOtherInvestingActivities | (344)us-gaap_PaymentsForProceedsFromOtherInvestingActivities | (529)us-gaap_PaymentsForProceedsFromOtherInvestingActivities
Net cash flows used in investing activities | (72,260)us-gaap_NetCashProvidedByUsedInInvestingActivities | (68,162)us-gaap_NetCashProvidedByUsedInInvestingActivities | (105,266)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash flows from financing activities |  |  |
Borrowings under revolving credit facilities | 165,014 us-gaap_ProceedsFromLinesOfCredit | 73,101 us-gaap_ProceedsFromLinesOfCredit | 129,479 us-gaap_ProceedsFromLinesOfCredit
Payments under revolving credit facilities | (61,951)us-gaap_RepaymentsOfLongTermLinesOfCredit | (89,478)us-gaap_RepaymentsOfLongTermLinesOfCredit | (158,825)us-gaap_RepaymentsOfLongTermLinesOfCredit
Dividends paid | (85,726)us-gaap_PaymentsOfDividendsCommonStock | (72,905)us-gaap_PaymentsOfDividendsCommonStock | (64,087)us-gaap_PaymentsOfDividendsCommonStock
Proceeds from stock option exercises | 17,161 us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions | 35,306 us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions | 45,771 us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
Excess tax benefit from share-based compensation | 6,275 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities | 8,560 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities | 4,474 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
Purchase of common stock | (219,893)us-gaap_PaymentsForRepurchaseOfCommonStock | (167,503)us-gaap_PaymentsForRepurchaseOfCommonStock | (89,563)us-gaap_PaymentsForRepurchaseOfCommonStock
Unvested shares surrendered for tax withholding | (4,952)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation | (1,902)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation | (2,340)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
Other | 0 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities | (4,224)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities | (1,394)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
Net cash flows used in financing activities | (184,072)us-gaap_NetCashProvidedByUsedInFinancingActivities | (219,045)us-gaap_NetCashProvidedByUsedInFinancingActivities | (136,485)us-gaap_NetCashProvidedByUsedInFinancingActivities
Effect of exchange rate changes on cash and cash equivalents | (42,121)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 6,450 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 4,176 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Net increase in cash | 69,508 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 120,765 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 88,605 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents at beginning of year | 439,629 us-gaap_CashAndCashEquivalentsAtCarryingValue | 318,864 us-gaap_CashAndCashEquivalentsAtCarryingValue | 230,259 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents at end of period | 509,137 us-gaap_CashAndCashEquivalentsAtCarryingValue | 439,629 us-gaap_CashAndCashEquivalentsAtCarryingValue | 318,864 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash paid for: |  |  |
Interest | 32,565 us-gaap_InterestPaid | 33,432 us-gaap_InterestPaid | 32,639 us-gaap_InterestPaid
Income taxes | 122,295 us-gaap_IncomeTaxesPaid | 73,657 us-gaap_IncomeTaxesPaid | 87,603 us-gaap_IncomeTaxesPaid
Significant non-cash activities: |  |  |
Contingent consideration for acquisition | 0 iex_ContingentConsiderationForAcquisition | 0 iex_ContingentConsiderationForAcquisition | 8,370 iex_ContingentConsiderationForAcquisition
Debt acquired with acquisition of business | $ 0 iex_DebtAcquiredWithAcquisitionOfBusiness | $ 0 iex_DebtAcquiredWithAcquisitionOfBusiness | $ 4,680 iex_DebtAcquiredWithAcquisitionOfBusiness

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- Definition The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.19) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.18) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.22) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 + Details
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- Definition The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3098-108585 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3098-108585 + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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