Basis Of Presentation (Tables)

6 Months Ended

Jun. 30, 2016

Basis Of Presentation [Abstract]

Reconciliation Of The Numerator And Denominators Of The Basic And Diluted Net Income (Loss) Per Share Computations

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
Numerator:
Net income (loss)	$	6,338	$	(4,022)	$	14,202	$	4,940
Denominator:
Weighted-average shares outstanding used to compute basic net income (loss) per share		49,897		49,929		49,743		49,947
Effect of dilutive securities		2,922		—		2,662		2,479
Weighted-average shares outstanding used to compute diluted net income (loss) per share		52,819		49,929		52,405		52,426
Basic net income (loss) per share	$	0.13	$	(0.08)	$	0.29	$	0.10
Diluted net income (loss) per share	$	0.12	$	(0.08)	$	0.27	$	0.09