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Derivative Instruments and Hedging Activities (Narrative) (Details) € in Millions | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 USD ($) country | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2015 EUR (€)
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Number of countries where products sold, countries (over 150) | country | 150 |  |  |
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Swap [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative, notional amount | $ 368,100,000 |  |  | € 312.0
Debt instrument, interest rate, percent | 0.33% |  |  |
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative, notional amount | $ 107,400,000 | $ 111,200,000 |  |
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative, notional amount |  |  | $ 300,000,000.0 |
Deferred gain on hedge termination | 5,600,000 | 7,300,000 |  |
Derivative, variable interest rate |  |  | 4.14% | 4.14%
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative, notional amount | $ 1,391,600,000 | $ 1,550,200,000 |  |

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- Definition Deferred Gain On Hedge Termination + References No definition available. + Details
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- Definition Number of countries where products sold. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition The percentage points added to the reference rate to compute the variable rate on the interest rate derivative. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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