Restructuring, Plant Closures and Other Related Costs (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Restructuring expense (income) [Abstract]
Employee severance and related benefits	$ 4,490	$ (57)
Total restructuring and other repositioning expense	4,761	78
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Costs incurred to date	4,502
Costs incurred to date - other	59
Expected cost	12,500
Expected future cash costs	17,000
Accrued Restructuring Liability [Roll Forward]
Beginning Balance	595	1,301
Additions	4,502	0
Adjustment	(12)	(57)
Effect of exchange rate changes	(8)	4
Payments	(733)	(72)
Ending Balance	4,344	1,176
Cost of Sales [Member]
Restructuring expense (income) [Abstract]
Other repositioning costs	271	135
Restructuring Expense (Income) [Member]
Restructuring expense (income) [Abstract]
Employee severance and related benefits	$ 4,490	$ (57)