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Derivatives (Details 1) € in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2022 EUR (€) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2019 EUR (€) | Jun. 30, 2018 USD ($) | Jun. 30, 2019 EUR (€) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 EUR (€)
Derivatives designated as hedging instruments |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Term of Contract |  |  |  | 1 year | 1 year |  |  |  |
Cash Flow Hedge Loss to be Reclassified within Twelve Months |  |  |  | $ 2.3 |  |  |  |  |
Derivatives designated as hedging instruments | Foreign currency option contracts |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |
Notional Amount |  | $ 10.3 |  | 10.3 |  |  |  | $ 8.4 |
Derivative Asset, Current |  | 0.0 |  | 0.0 |  |  |  | 0.2 |
Fair Value Asset Derivatives |  | 0.0 |  | 0.0 |  |  |  | 0.0 |
Derivative Liability, Current |  | 0.0 |  | 0.0 |  |  |  | 0.0 |
Fair Value Liability Derivatives |  | 0.0 |  | 0.0 |  |  |  | 0.0 |
Derivatives designated as hedging instruments | Foreign currency forward contracts |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |
Notional Amount |  | 2.6 |  | 2.6 |  |  |  | 0.0 |
Derivative Asset, Current |  | 2.4 |  | 2.4 |  |  |  | 2.3 |
Fair Value Asset Derivatives |  | 0.0 |  | 0.0 |  |  |  | 0.0 |
Derivative Liability, Current |  | 0.0 |  | 0.0 |  |  |  | 0.0 |
Fair Value Liability Derivatives |  | 16.8 |  | 16.8 |  |  |  | 20.7 |
Derivatives designated as hedging instruments | Cross currency swap |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |
Notional Amount | € |  |  |  |  |  |  | € 170.4 |  | € 174.0
Aggregate scheduled interest payments over the course of the loan and related swaps | € |  |  |  |  | € 20.4 |  |  |  |
Derivatives designated as hedging instruments | Cross currency swap | Scenario, Forecast |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal | € | € 150.0 |  |  |  |  |  |  |  |
Derivatives not designated as hedging instruments | Foreign currency forward contracts |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |
Notional Amount |  | 47.4 |  | 47.4 |  |  |  | 63.4 |
Derivative Asset, Current |  | 0.6 |  | 0.6 |  |  |  | 0.2 |
Fair Value Asset Derivatives |  | 0.0 |  | 0.0 |  |  |  | 0.0 |
Derivative Liability, Current |  | 0.6 |  | 0.6 |  |  |  | 0.0 |
Fair Value Liability Derivatives |  | 0.0 |  | 0.0 |  |  |  | $ 0.0 |
Cash Flow Hedge | Foreign currency option contracts |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |
Net gain (loss) reclassified from Accumulated Other Comprehensive Loss into earnings, net of tax, effective portion to Net Foreign Currency Transaction Losses |  | 0.0 | $ 0.0 | 0.0 |  | $ 0.0 |  |  |
Cash Flow Hedge | Foreign currency forward contracts |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |
Net gain (loss) reclassified from Accumulated Other Comprehensive Loss into earnings, net of tax, effective portion to Net Foreign Currency Transaction Losses |  | $ (1.6) | $ 7.9 | $ 0.8 |  | $ 4.0 |  |  |

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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 effective portion of net gain (loss) reclassified from accumulated other comprehensive income into net foreign currency transaction gains (losses) on derivative instruments designated and qualifying as hedging instruments. + References No definition available. + Details
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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994 + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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