Derivative Financial Instruments (Details) € in Millions, ¥ in Millions, $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2016 EUR (€) MBbls	Jun. 30, 2016 JPY (¥)	Jun. 30, 2016 USD ($)	Jun. 30, 2016 JPY (¥) MBbls	Jun. 30, 2016 USD ($) MBbls
Forward-Start Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount						$ 36.0
Maximum term (in years)		5 years	5 years	5 years
Derivative, underlying basis		one-month London Interbank Offered Rate (“LIBOR”)	one-month London Interbank Offered Rate (“LIBOR”)	one-month London Interbank Offered Rate (“LIBOR”)
Fixed interest rate		5.41%			5.41%	5.41%
Foreign Currency Hedge - USD Inventory Purchases, Euro Sub [Member]
Derivative [Line Items]
Notional amount		€ 11.0				$ 12.1
Foreign Currency Hedge - Euro Sales, U.S. Sub [Member]
Derivative [Line Items]
Notional amount		9.0				9.9
Foreign Currency Hedge - Yen Inventory Purchases, U.S. [Member]
Derivative [Line Items]
Notional amount					¥ 710.2	6.0
Foreign Currency Hedge - Yen Inventory Purchases, Euro Sub [Member]
Derivative [Line Items]
Notional amount					¥ 360.0	3.1
Euro-Denominated Revolver [Member]
Derivative [Line Items]
Notional amount, nonderivative instruments		€ 21.0		$ 23.2
Cumulative foreign currency translation gain						0.6
Cumulative foreign currency translation gain, net of tax						0.3
Yen-Denominated Revolver [Member]
Derivative [Line Items]
Notional amount, nonderivative instruments			¥ 500.0	4.9
Cumulative foreign currency translation gain						0.7
Cumulative foreign currency translation gain, net of tax						$ 0.4
Options Held [Member]
Derivative [Line Items]
Derivative, nonmonetary notional amount | MBbls		71,900			71,900	71,900
Premium paid				0.2
Gain related to call options	$ 0.2			$ 0.2
Forward Contracts - cross currency loan [Member]
Derivative [Line Items]
Notional amount | €		€ 20.0