Goodwill and Intangible Assets (Tables)

6 Months Ended

Sep. 30, 2012

Goodwill and Intangible Assets

Schedule of intangible assets

	September 30, 2012				March 31, 2012
	Carrying		Accumulated		Carrying		Accumulated
	Amount		Amortization		Amount		Amortization
Indefinite Lived Intangible Assets:
Trademarks	$	7,644	$	—	$	7,644	$	—
Amortized Intangibles:
Customer relationships, patents and other (3-18 years)	43,172		10,714		43,813		9,930
	$	50,816	$	10,714	$	51,457	$	9,930

Summary of changes in carrying amount of goodwill

	Six Months Ended September 30,
	2012			2011
Gross balance at the beginning of fiscal year	$	36,676		$	—
Acquisitions	—			36,676
Impairment charges	(1,092		)	—
	$	35,584		$	36,676