Guarantees, Other Contingent Liabilities, And Other Matters (Narrative) (Details)	0 Months Ended			9 Months Ended									0 Months Ended		0 Months Ended		0 Months Ended				0 Months Ended				3 Months Ended	9 Months Ended
	Dec. 30, 2014 USD ($)	Dec. 01, 2014 USD ($)	Sep. 09, 2011 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 30, 2014 USD ($)	Dec. 01, 2014	Jun. 30, 2014 USD ($)	Jun. 30, 2014 EUR (€)	Mar. 31, 2014 USD ($)	Sep. 09, 2011 EUR (€)	Nov. 15, 2005 EUR (€)	Dec. 30, 2014 Revolving credit facility [Member]	Dec. 31, 2014 Revolving credit facility [Member] USD ($)	Dec. 30, 2014 Revolving credit facility [Member] Five-year term [Member]	Dec. 31, 2014 Revolving credit facility [Member] Five-year term [Member]	Dec. 30, 2014 Term Loan [Member] Five-year term [Member]	Dec. 31, 2014 Term Loan [Member] Five-year term [Member]	Dec. 30, 2014 Term Loan [Member] Five-year term [Member] USD ($)	Jan. 13, 2015 Term Loan [Member] Five-year term [Member] Subsequent Event [Member]	Dec. 30, 2014 Term Loan [Member] Seven-year term [Member]	Dec. 31, 2014 Term Loan [Member] Seven-year term [Member]	Dec. 30, 2014 Term Loan [Member] Seven-year term [Member] USD ($)	Jan. 13, 2015 Term Loan [Member] Seven-year term [Member] Subsequent Event [Member]	Jun. 30, 2013 Brazil [Member] USD ($)	Dec. 31, 2014 Santa Catarina [Member] USD ($)	Dec. 31, 2014 Santa Catarina [Member] Minimum [Member] USD ($)	Dec. 31, 2014 Santa Catarina [Member] Maximum [Member] USD ($)	Dec. 31, 2014 Parana [Member] USD ($)	Dec. 31, 2014 Parana [Member] Minimum [Member] USD ($)	Dec. 31, 2014 Parana [Member] Maximum [Member] USD ($)
Guarantees, Other Contingent Liabilities, and Other Matters [Line Items]
Company total exposure under guarantees				$ 36,000,000
Face amount of guarantee including unpaid accrued interest				38,000,000	41,000,000					20,000,000
Fair value of the guarantees				2,000,000	3,000,000					2,000,000
Other contingent liabilities				2,000,000
Brazil audit assessment for tax, penalties, and interest on recoverable value added tax credits																										18,000,000			21,000,000
Reduced Brazil audit assessment for tax, penalties, and interest on recoverable value added tax credits																										15,000,000
Estimate of possible loss on remaining VAT audit assessment																											0	15,000,000		0	17,000,000
Repayments of Medium-term Notes		100,000,000
Debt Instrument, Interest Rate, Stated Percentage							6.25%
Five-year revolving credit facility						430,000,000
Term loan																			150,000,000				220,000,000
Debt Instrument, Term													5 years				5 years				7 years
Repayments of aggregate principal outstanding on term loan	248,800,000
Reduction in revolving credit borrowings	120,000,000
Additional borrowings under present credit agreement						100,000,000
Debt Instrument, Basis Spread on Variable Rate															1.50%		1.50%				1.75%
Debt Instrument, Interest Rate, Effective Percentage																1.69%		1.69%		2.94%		1.94%		3.48%
Amount outstanding revolving credit facility														50,000,000
Interest rate swap agreements notional amount				74,000,000
Interest rate swap agreements					1,068,000	600,000				936,000
Fines imposed by European Commission								30,000,000	38,900,000		30,000,000	30,000,000
Charge Recorded To Accrue European Commission Fine			49,100,000
Accumulated interest on European Commission fine											5,900,000
Total amount of Brazilian IPI federal tax credits made available by court decision																									104,000,000
Brazilian federal taxes offset period																									5 years
Net book value on tax credits from excise tax case after valuation allowance				24,000,000																					90,000,000
Gain on favorable outcome of excise tax case in Brazil				0	81,619,000																				81,600,000
Gain on favorable outcome of excise tax case in Brazil, after tax																									53,100,000
Diluted earnings per share calculation based on gain from excise tax case in Brazil																									$ 1.87
Remaining unused tax credits on excise tax case in Brazil at current exchange rate				40,000,000
Advances to suppliers current and non-current				153,000,000	174,000,000					190,000,000
Valuation allowance amount related to advances to suppliers				40,000,000	46,000,000					46,000,000
Provision for loss on uncollectible advances to suppliers				1,000,000	9,000,000
Aggregate balance of recoverable value added tax credits				66,000,000	75,000,000					66,000,000
Valuation allowance on recoverable value added tax credits				$ 32,000,000	$ 28,000,000					$ 30,000,000