Fair Value Measurements and Derivative Instruments (Narrative) (Details) - USD ($)	6 Months Ended
Jun. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Amount of ineffectiveness	$ 0
Collateral outstanding	0
Notes due December 2020 \| New Term Loan
Derivative [Line Items]
Loan amount	300,000,000
Foreign exchange contracts
Derivative [Line Items]
Derivative notional amount	9,000,000	$ 8,000,000
Interest Rate Swap \| Cash Flow Hedging
Derivative [Line Items]
Derivative notional amount	$ 300,000,000

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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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.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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- Definition

The net gain (loss) relating to components of the gain (loss) on the cash flow hedging instrument excluded from the assessment of cash flow hedge effectiveness. Recognized in earnings.

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