Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2012	Mar. 31, 2012
Goodwill [Roll Forward]
Opening Balance	$ 106,435
Goodwill Translation Adjustments	(374)
Closing Balance	106,061
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	21,703	21,858
Accumulated Amortization	(7,422)	(6,067)
Net	14,281	15,791
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,720	5,783
Accumulated Amortization	(1,332)	(1,109)
Net	4,388	4,674
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14,605	14,808
Accumulated Amortization	(5,723)	(4,693)
Net	8,882	10,115
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,378	1,267
Accumulated Amortization	(367)	(265)
Net	$ 1,011	$ 1,002