Net Income per Share (Tables)

9 Months Ended

Oct. 31, 2020

Earnings Per Share [Abstract]

Numerators and Denominators of the Basic and Diluted EPS Computations for Common Stock

The numerators and denominators of the basic and diluted net income per share computations for our common stock are calculated as follows (in thousands, except per share data):

	Three months ended October 31,								Nine months ended October 31,
	2020				2019				2020				2019
	Class A		Class B		Class A		Class B		Class A		Class B		Class A		Class B
Basic
Numerator
Net income, basic	$	87,262	$	9,697	$	73,120	$	9,125	$	249,155	$	27,925	$	206,862	$	28,074
Denominator
Weighted average shares used in computing net income per share, basic	135,892		15,101		131,720		16,437		135,172		15,150		129,845		17,622
Net income per share, basic	$	0.64	$	0.64	$	0.56	$	0.56	$	1.84	$	1.84	$	1.59	$	1.59
Diluted
Numerator
Net income, basic	$	87,262	$	9,697	$	73,120	$	9,125	$	249,155	$	27,925	$	206,862	$	28,074
Reallocation as a result of conversion of Class B to Class A common stock:
Net income, basic	9,697		—		9,125		—		27,925		—		28,074		—
Reallocation of net income to Class B common stock	—		5,784		—		4,879		—		15,825		—		13,942
Net income, diluted	$	96,959	$	15,481	$	82,245	$	14,004	$	277,080	$	43,750	$	234,936	$	42,016
Denominator
Number of shares used for basic net income per share computation	135,892		15,101		131,720		16,437		135,172		15,150		129,845		17,622
Conversion of Class B to Class A common stock	15,101		—		16,437		—		15,150		—		17,622		—
Effect of potentially dilutive common shares	10,718		10,718		10,593		10,593		10,195		10,195		10,657		10,657
Weighted average shares used in computing net income per share, diluted	161,711		25,819		158,750		27,030		160,517		25,345		158,124		28,279
Net income per share, diluted	$	0.60	$	0.60	$	0.52	$	0.52	$	1.73	$	1.73	$	1.49	$	1.49

Potential Common Share Equivalents Excluded where the Inclusion would be Anti-dilutive

Potential common share equivalents excluded where the inclusion would be anti-dilutive are as follows:

	Three months ended October 31,		Nine months ended October 31,
	2020	2019	2020	2019
Options and awards to purchase shares not included in the computation of diluted net income per share because their inclusion would be anti-dilutive	85,099	1,362,085	997,236	1,037,362