Stock-Based Compensation (Tables)

9 Months Ended

Sep. 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 September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
Cost of revenues	$	666	$	432	$	1,996	$	1,489
Research and development expense		551		405		1,614		1,255
Selling, general and administrative expense		3,941		2,410		16,216		7,281

Total pre-tax stock-based compensation expense	$	5,158	$	3,247	$	19,826	$	10,025

Summary of Activity for RSUs

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


	Nine Months Ended September 30, 2016
	Non-vested RSUs			Weighted Average Grant Date Fair value
Non-vested RSUs – beginning of period		733,162		$	30.94
Assumed RSUs from Newport Merger		360,674			35.01
Accrued dividend shares		136			43.64
Granted		740,985			35.51
Vested		(452,251	)		31.18
Forfeited		(55,474	)		33.74

Non-vested RSUs – end of period		1,327,232		$	34.40

Summary of Activity for Outstanding and Exercisable Stock Appreciation Rights

At September 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		712,284	$	27.86		4.1	$	15,581
Stock appreciation rights exercisable		482,001	$	26.52		3.5	$	11,185