14. Net Income Per Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Net Income per Share

14. Net Income per Share

The calculation of basic and diluted net income per share for the three and six months ended June 30, 2021 and 2020 was as follows (in thousands, except per share amounts):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Basic net income per share
Numerator:
Net income	$	82,449	$	36,911	$	292,120	$	127,615
Denominator:
Weighted-average common shares outstanding	106,313		105,927		106,201		105,761
Diluted net income per share
Denominator:
Weighted-average common shares outstanding	106,313		105,927		106,201		105,761
Effect of restricted and performance units and stock purchase plan shares	523		546		665		668
Weighted-average shares used in computing diluted net income per share	106,836		106,473		106,866		106,429
Net income per share:
Basic	$	0.78	$	0.35	$	2.75	$	1.21
Diluted	$	0.77	$	0.35	$	2.73	$	1.20

There were no anti-dilutive common shares for the three and six months ended June 30, 2021 and 2020.