Calculation Of Net Income Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

The following table presents the computation of weighted-average shares used in the calculation of basic and diluted earnings per share:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
	(In thousands)
Weighted-average shares of common stock outstanding	114,655	118,194	115,456	118,966
Weighted-average potential shares of common stock outstanding:
Unvested RSUs and ESPP	176	375	243	444
Shares used to compute diluted earnings per share	114,831	118,569	115,699	119,410