Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share ("EPS") for the periods presented (in thousands, except per share amounts):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Net income	$	124,825	$	79,900	$	255,337	$	167,767
Weighted-average shares used to calculate basic EPS	79,872		78,055		79,533		76,283
Effect of dilutive securities:
Employee equity awards	411		664		423		665
Weighted-average shares used to calculate diluted EPS	80,283		78,719		79,956		76,948
Basic EPS	$	1.56	$	1.02	$	3.21	$	2.20
Diluted EPS	$	1.55	$	1.02	$	3.19	$	2.18