Valuation and Qualifying Accounts

12 Months Ended

Mar. 31, 2011

Valuation and Qualifying Accounts [Abstract]

VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

	Allowance for Doubtful Accounts
	Balance at		Additions					Balance at
(in thousands)	Beginning of		Charged to Costs					End of
For the year ended	Year		and Expenses		Deductions			Year
March 31, 2011	$	4,489	$	3,780	$	(1,552	)	$	6,717
March 31, 2010	$	3,877	$	3,465	$	(2,853	)	$	4,489
March 31, 2009	$	2,528	$	2,089	$	(740	)	$	3,877

	Allowance for Inventory Obsolescence
	Balance at		Additions					Balance at
(in thousands)	Beginning of		Charged to Costs					End of
For the year ended	Year		and Expenses		Deductions			Year
March 31, 2011	$	237	$	27	$	—		$	264
March 31, 2010	$	210	$	27	$	—		$	237
March 31, 2009	$	223	$	—	$	(13	)	$	210