Stock-Based Compensation (Tables)

3 Months Ended

Jun. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock-Based Compensation Expense of Stock Options and Restricted Stock Units

The following table summarizes stock-based compensation expense related to stock options and RSUs (in thousands):

	Three Months Ended
	June 30,
	2014		2013
Stock-based compensation expense by type of grant:
Stock options	$	414	$	602
Restricted stock units	4,784		3,124
Total stock-based compensation	5,198		3,726
Stock-based compensation (capitalized to) expensed from inventory	18		(12		)
Total stock-based compensation expense	$	5,216	$	3,714

Summary of Stock-Based Compensation Expense

The following table summarizes stock-based compensation expense as it relates to the Company’s Condensed Consolidated Statement of Operations (in thousands):

	Three Months Ended
	June 30,
	2014		2013
Stock-based compensation expense by cost centers:
Cost of revenues	$	29	$	108
Research and development	3,271		1,798
Selling, general and administrative	1,898		1,820
Total stock-based compensation	$	5,198	$	3,726
Stock-based compensation (capitalized to) expensed from inventory	18		(12		)
Total stock-based compensation expense	$	5,216	$	3,714