Derivatives Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015	Mar. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 0		$ 0
Derivative Liability	2,714		2,714
Derivative, Fair Value, Net	(2,714)		(2,714)		$ (1,944)	$ 1,003
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(9,882)	$ (10,677)	(8,400)	$ (11,286)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(1,178)	(29)	(1,809)	(37)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(8,704)	(10,648)	(6,591)	(11,249)
Mexico, Pesos
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	36,700		36,700
Japan, Yen
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	6,100		6,100
Euro Member Countries, Euro
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	0		0
Sales Revenue, Net [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(439)		(789)
Cost of sales
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(533)		(687)
Operating Expense [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(533)		(687)
Operating Income (Loss) [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(972)		(1,476)
Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(1,742)		(5,193)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(972)		(1,476)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (770)	$ 0	$ (3,717)	$ 0