SHARE-BASED COMPENSATION (Tables)

6 Months Ended

Sep. 30, 2016

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

Summary of Share-Based Compensation Expense

The following is a summary of share-based compensation expense including restricted stock units and employee stock purchases made under the Company's 2011 Employee Stock Purchase Plan (ESPP) based on estimated fair values within the applicable cost and expense lines identified below (in thousands):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2016		2015		2016		2015
Cost of product revenue	$	266	$	167	$	461	$	269
Cost of service revenue	1,245		754		2,043		1,127
Research and development	3,872		2,572		6,505		4,062
Sales and marketing	3,726		2,240		6,337		3,643
General and administrative	2,569		1,770		4,464		2,997
	$	11,678	$	7,503	$	19,810	$	12,098