Schedule of Other Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Schedule of Other Liabilities [Line Items]
Pension and profit sharing obligation	$ 34,554	$ 30,752
Warranty	22,512	22,793
Long-term income taxes liabilities	17,165	13,520
Deferred income	6,285	6,094
Interest rate swap liabilities		244
Other	9,902	19,065
Total	$ 90,418	$ 92,468