STOCK-BASED COMPENSATION

9 Months Ended

Dec. 31, 2016

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

The Company recognizes the grant-date fair value of stock-based compensation as compensation expense using the straight-line attribution approach over the service period for which the stock-based compensation is expected to vest. The following table summarizes the amount of stock-based compensation included in the condensed consolidated statements of operations:



	Three Months Ended December 31,						Nine Months Ended December 31,
(in thousands)	2015			2016			2015			2016
Cost of revenues	$	811		$	794		$	2,469		$	2,414

Research, development, and engineering	2,286			1,771			7,264			6,663
Selling, general, and administrative	4,620			6,124			14,866			15,928
Stock-based compensation included in operating expenses	6,906			7,895			22,130			22,591
Total stock-based compensation	7,717			8,689			24,599			25,005
Income tax benefit	(2,238		)	(2,986		)	(7,202		)	(8,635		)
Total stock-based compensation, net of tax	$	5,479		$	5,703		$	17,397		$	16,370

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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