Guarantees, Other Contingent Liabilities, And Other Matters (Details)	0 Months Ended	3 Months Ended							3 Months Ended
	Sep. 09, 2011 USD ($)	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Mar. 31, 2013 USD ($)	Sep. 09, 2011 EUR (€)	Nov. 15, 2005 EUR (€)	Jun. 30, 2013 Minimum [Member] USD ($)	Jun. 30, 2013 Maximum [Member] USD ($)	Jun. 30, 2013 Brazil [Member] USD ($)
Guarantees, Other Contingent Liabilities, and Other Matters [Line Items]
Face amount of guarantee including unpaid accrued interest		$ 4,000,000	$ 5,000,000	$ 20,000,000
Fair value of the guarantees		4,000,000	2,000,000	4,000,000
Other contingent liabilities		3,000,000
Fines imposed by European Commission					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
Collateralized guaranteed bank deposit		50,000,000
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									90,000,000
Gain on favorable outcome of excise tax case in Brazil		(81,619,000)	0						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									1.98
Advances to suppliers current and non-current		123,000,000	155,000,000	199,000,000
Valuation allowance amount related to advances to suppliers		51,000,000	67,000,000	54,000,000
Provision for loss on uncollectible advances to suppliers		3,000,000	1,000,000
Aggregate balance of recoverable value added tax credits		73,000,000	77,000,000	73,000,000
Valuation allowance on recoverable value added tax credits		26,000,000	25,000,000	26,000,000
Brazil audit assessment for tax, penalties, and interest on recoverable value added tax credits		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