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Commitments and Contingencies (Narrative) (Details) $ in Thousands, € in Millions				6 Months Ended		12 Months Ended
	May 15, 2018 USD ($)	Oct. 06, 2016 USD ($)	Apr. 01, 2016 USD ($)	Jun. 30, 2018 USD ($) installment notice	Jun. 30, 2018 EUR (€)	Dec. 31, 2004 USD ($)	Jul. 31, 2018 claim	Jun. 30, 2018 EUR (€) installment notice	Dec. 31, 2017 USD ($)	Aug. 27, 2015 non-conformity	Oct. 30, 2009 USD ($)	Oct. 30, 2009 EUR (€)
Other Commitments [Line Items]
Accrual for environmental loss contingencies				$ 19,717					$ 27,546
Estimate of possible loss				19,700	€ 17.0
Settled Litigation
Other Commitments [Line Items]
Litigation settlement	$ 480	$ 480
Legal fees	$ 58
Threatened Litigation | Regional Internal Revenue Office of Lombardy
Other Commitments [Line Items]
Losses under dispute				$ 72,900				€ 62.6			$ 119,500	€ 102.6
Number of equal installments | installment				5				5
Number of notice of assessments | notice				3				3
FDA Warning Letter
Other Commitments [Line Items]
Number of observed non-conformities | non-conformity										2
SNIA | Pending Litigation | SNIA s.p.a
Other Commitments [Line Items]
Compensation sought						$ 4,000,000
SNIA | Settled Litigation | Sorin S.p.A. | Positive Outcome of Litigation
Other Commitments [Line Items]
Litigation settlement			$ 340
Forecast
Other Commitments [Line Items]
Pending claims, number | claim							135

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