Employee Benefits And Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

Classification Of Stock-Based Compensation

The following table presents the classification of stock-based compensation:

	Year Ended December 31,
	2016		2015		2014
	(In thousands)
Stock-based compensation:
Cost of revenues	$	7,253	$	7,009	$	6,400
Sales and marketing	5,738		6,763		8,023
Research and development	6,739		6,488		7,018
General and administrative	30,314		25,815		22,536
Total stock-based compensation	$	50,044	$	46,075	$	43,977

Nature Of Total Stock-Based Compensation

The following table presents the nature of the Company’s total stock-based compensation:

	Year Ended December 31,
	2016			2015			2014
	(In thousands)
RSUs	$	37,325		$	36,664		$	32,304
Performance-based RSUs	11,512			8,078			10,232
ESPP	3,593			4,051			4,192
Capitalization (Included in Property and equipment, net)	(2,386		)	(2,718		)	(2,751		)
Total stock-based compensation expense	$	50,044		$	46,075		$	43,977

Summary Of Unvested RSUs Activity

The following table summarizes unvested RSUs activity:

	Year Ended December 31,
	2016				2015				2014
	Shares		Weighted-Average Grant-Date Fair Value		Shares		Weighted-Average Grant-Date Fair Value		Shares		Weighted-Average Grant-Date Fair Value
	(Shares in thousands)
Unvested at beginning of period	2,110		$	54.77	2,179		$	46.36	2,442		$	38.00
Granted	760		78.58		1,075		61.74		909		55.05
Vested and settled	(873	)	49.95		(932	)	43.92		(878	)	35.99
Forfeited	(151	)	61.57		(212	)	51.47		(294	)	44.00
	1,846		$	66.30	2,110		$	54.77	2,179		$	46.36