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Stock-Based Compensation Plans (Tables)

6 Months Ended

Jul. 31, 2022

Stock-Based Compensation Plans

Schedule of estimated stock-based compensation expense recognized in condensed consolidated statement of operations

​

​	​	​	​	​	​	​	​	​
​		Three Months Ended				Six Months Ended
​	​	July 31,		July 31,	​	July 31,		July 31,
​	​	2022	​	2021	​	2022	​	2021
​	​	​	​	​	​	​	​	​
Cost of revenues		254		199		449		343
Sales and marketing		675		918		1,160		1,279
Research and development		490		388		857		668
General and administrative		2,317		1,510		4,057		2,877
Effect on net income		3,736		3,015		6,523		5,167

Schedule of weighted-average assumptions

​

​	​	​	​	​
​		Six Months Ended
​	​	July 31,		July 31,
​	​	2022	​	2021
Expected dividend yield (%)		—		—
Expected volatility (%)		29.2		27.8
Risk-free rate (%)		2.4		0.7
Expected option life (years)		5		5

Schedule of stock option activity

​

​	​	​	​	​	​	​	​	​	​	​
​		​		​			Weighted-		​
​	​	Number of	​	Weighted-		​	Average	​	Aggregate
​	​	Stock	​	Average		​	Remaining	​	Intrinsic
​	​	Options	​	Exercise		​	Contractual	​	Value
​	​	Outstanding	​	Price		​	Life (years)	​	(in millions)
Balance at January 31, 2022		1,319,279	​	$	42.35		4.4	​	$	41.5
Granted		354,699	​	$	62.57			​
Exercised		(32,337)	​	$	26.51			​
Forfeited		(13,663)	​	$	53.06			​
Balance at July 31, 2022		1,627,978	​	$	46.34		4.6	​	$	37.4
​	​	​	​	​	​	​	​	​	​	​
Vested or expected to vest at July 31, 2022		1,627,978	​	$	46.34		4.6	​	$	37.4
​	​	​	​	​	​	​	​	​	​	​
Exercisable at July 31, 2022		827,223	​	$	36.69		3.5	​	$	26.9

Summary of performance share units activity

​

​	​	​	​	​	​	​	​	​	​	​
​		​		Weighted-			Weighted-		​
​	​	​	​	Average		​	Average	​	Aggregate
​	​	Number of	​	Granted		​	Remaining	​	Intrinsic
​	​	PSUs	​	Date Fair		​	Contractual	​	Value
​	​	Outstanding	​	Value		​	Life (years)	​	(in millions)
Balance at January 31, 2022		777,538	​	$	35.76		4.8	​	$	57.4
Granted		97,991	​	$	66.58			​
Performance units issued		39,704	​	$	55.68			​
Balance at July 31, 2022		915,233	​	$	39.36		5.0	​	$	63.4
​	​	​	​	​	​	​	​	​	​	​
Vested or expected to vest at July 31, 2022		915,233	​	$	39.36		5.0	​	$	63.4
​	​	​	​	​	​	​	​	​	​	​
Exercisable at July 31, 2022		654,467	​	$	27.43		3.6	​	$	45.3

Summary of restricted share units activity

​

​	​	​	​	​	​	​	​	​	​	​
​		​		Weighted-			Weighted-		​
​	​	​	​	Average		​	Average	​	Aggregate
​	​	Number of	​	Granted		​	Remaining	​	Intrinsic
​	​	RSUs	​	Date Fair		​	Contractual	​	Value
​	​	Outstanding	​	Value		​	Life (years)	​	(in millions)
Balance at January 31, 2022		410,980	​	$	29.17		5.0	​	$	30.3
Granted		63,651	​	$	63.05			​
Balance at July 31, 2022		474,631	​	$	33.24		5.1	​	$	32.9
​	​	​	​	​	​	​	​	​	​	​
Vested or expected to vest at July 31, 2022		474,631	​	$	33.24		5.1	​	$	32.9
​	​	​	​	​	​	​	​	​	​	​
Exercisable at July 31, 2022		355,675	​	$	24.17		3.9	​	$	24.6

Summary cash settled restricted share unit plan activity

​

​	​	​	​	​
​		​		Weighted-
​	​	​	​	Average
​	​	Number of	​	Remaining
​	​	CRSUs	​	Contractual
​	​	Outstanding	​	Life (years)
Balance at January 31, 2022		24,428		1.4
Granted		7,948
Vested and settled in cash		(9,463)
Forfeited		(74)
Balance at July 31, 2022		22,839		1.6
​	​	​	​	​
Non-vested at July 31, 2022		22,839		1.6

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Schedule of cash settled under restricted share units.

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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