Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Weighted-average shares outstanding for basic and diluted net income per share

The Company provides dual presentation of “basic” and “diluted” earnings per share (“EPS”). Shares discussed below are in thousands.

	Fiscal Year Ended March 31,
	2014		2013		2012
Net income	$	15,680	$	42,724	$	75,657
Basic net income per share:
Weighted-average shares outstanding — Basic	59,918		59,392		58,729
Basic net income per common share	$	0.26	$	0.72	$	1.29
Net income	$	15,680	$	42,724	$	75,657
Diluted net income per share:
Weighted-average shares outstanding — Basic	59,918		59,392		58,729
Effect of potentially dilutive securities	216		70		320
Weighted-average shares outstanding — Diluted	60,134		59,462		59,049
Diluted net income per common share	$	0.26	$	0.72	$	1.28

Stock-based compensation expense

	Fiscal Year Ended March 31,
	2014			2013			2012
Costs and expenses:
Cost of revenue	$	348		$	201		$	261
Research and development costs	323			230			184
Selling, general and administrative	1,819			1,896			2,876
Total share-based compensation	2,490			2,327			3,321
Income tax benefit	(794		)	(726		)	(1,236		)
Decrease in net income	$	1,696		$	1,601		$	2,085