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v2.4.1.9

Schedule of Borrowings (Schedule of Debt, Narrative) (Detail) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
4.2% Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.20%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = iex_FourPointTwoPercentageSeniorNotesMember |  | 4.20%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = iex_FourPointTwoPercentageSeniorNotesMember
Senior Notes, maturity date | Dec. 31, 2021 | Dec. 31, 2021 |
4.5 % Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = iex_FourPointFivePercentageSeniorNotesMember |  |
Senior Notes, maturity date | Dec. 31, 2020 | Dec. 31, 2020 |
2.58% Senior Euro Notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 2.58%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = iex_SeniorEuroNotesMember |  |
Senior Notes, maturity date | Jun. 30, 2015 | Jun. 30, 2015 |

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