Valuation and Qualifying Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013		Mar. 31, 2012		Mar. 31, 2011
Allowance for doubtful accounts
Valuation Allowance [Line Items]
Balance at Beginning of Period	$ 10,022		$ 10,547		$ 9,879
Additions Charged to Expense	998		1,395		1,513
Charge-Offs	(1,568)		(2,012)		(1,673)
Other	(160)	[1]	92	[1]	828	[1]
Balance at End of Period	9,292		10,022		10,547
Allowance for inventory valuation
Valuation Allowance [Line Items]
Balance at Beginning of Period	14,831		15,052		11,678
Additions Charged to Expense	7,337		7,659		8,329
Charge-Offs	(4,584)		(7,657)		(5,361)
Other	(212)	[1]	(223)	[1]	406	[1]
Balance at End of Period	17,372		14,831		15,052
Deferred tax asset-valuation allowance
Valuation Allowance [Line Items]
Balance at Beginning of Period	56,359		63,617		58,382
Additions Charged to Expense	3,829		2,457		825
Charge-Offs	(3,259)		(7,528)		(2,444)
Purchase accounting adjustments			1,124		5,340
Other	(2,387)	[1]	(3,311)	[1]	1,514	[1]
Balance at End of Period	$ 54,542		$ 56,359		$ 63,617

[1] Primarily the impact of currency changes.