Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2016

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

Schedule of Total Stock-Based Compensation Expense Included in Company's Consolidated Statements of Income and Comprehensive Income

The total stock-based compensation expense included in the Company’s consolidated statements of income and comprehensive income was as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Cost of revenues	$	890	$	578	$	1,330	$	1,057
Research and development expense		689		428		1,063		850
Selling, general and administrative expense		8,937		2,560		12,275		4,871

Total pre-tax stock-based compensation expense	$	10,516	$	3,566	$	14,668	$	6,778

Summary of Activity for RSUs

The following table presents the activity for RSUs under the Plan:


	Six Months Ended June 30, 2016
	Non-vested RSUs			Weighted Average Grant Date Fair value
Non-vested RSUs – beginning of period		733,162		$	30.94
Assumed shares from Newport Merger		324,075			35.01
Granted		695,284			35.17
Vested		(429,484	)		31.17
Forfeited or expired		(37,585	)		32.56

Non-vested RSUs – end of period		1,285,452		$	34.19

Summary of Activity for Outstanding and Exercisable Stock Appreciation Rights

At June 30, 2016, the Company’s outstanding and exercisable stock appreciation rights, the weighted-average base value, the weighted average remaining contractual life and the aggregate intrinsic value thereof, were as follows:


	Number of shares		Weighted Average Base Value		Weighted Average Remaining Contractual Life (years)		Aggregate Intrinsic Value
Stock appreciation rights outstanding		746,184	$	27.87		4.3	$	11,334
Stock appreciation rights exercisable		506,436	$	26.57		3.7	$	8,349