v3.19.1

Stock-based compensation (Tables)

3 Months Ended

Apr. 30, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of share based compensation recognized

The following table shows a summary of stock-based compensation in the Company's condensed consolidated statements of operations and comprehensive income during the periods presented:

		Three months ended April 30,
(in thousands)		2019				2018
Cost of revenue		$	860			$	413
Sales and marketing		1,007				705
Technology and development		1,499				991
General and administrative		2,662				2,130
Total stock-based compensation expense		$	6,028			$	4,239

Summary of stock-based compensation expense by award type

The following table shows stock-based compensation by award type:

		Three months ended April 30,
(in thousands)		2019				2018
Stock options		$	1,783			$	1,764
Performance stock options		—				153
Restricted stock units		2,926				1,542
Performance restricted stock units		651				514
Restricted stock awards		163				55
Performance restricted stock awards		505				211
Total stock-based compensation expense		$	6,028			$	4,239

Summary of assumptions

The key input assumptions that were utilized in the valuation of the stock options granted during the periods presented:

		Three months ended April 30,
		2019			2018
Expected dividend yield		—	%		—	%
Expected stock price volatility		35.98% - 36.53%			37.84	%
Risk-free interest rate		2.21% - 2.43%			2.52% - 2.68%
Expected life of options		4.95 - 5.09 years			5.17 - 6.25 years

Summary of stock option activity

A summary of stock option activity is as follows:

		Outstanding stock options
(in thousands, except for exercise prices and term)		Number of options			Range of exercise prices		Weighted- average exercise price				Weighted- average contractual term (in years)		Aggregate intrinsic value
Outstanding as of January 31, 2019		2,444			$0.10 - 82.39		$	27.37			6.74		$	85,971
Granted		108			$63.64 - 73.61		$	73.27
Exercised		(178	)		$0.10 - 44.53		$	24.49
Forfeited		(18	)		$24.36 - 44.53		$	30.92
Outstanding as of April 30, 2019		2,356			$0.10 - 82.39		$	29.66			6.62		$	90,701
Vested and expected to vest as of April 30, 2019		2,356					$	29.66			6.62		$	90,701
Exercisable as of April 30, 2019		1,503					$	21.82			5.91		$	69,042

Summary of restricted stock unit activity

A summary of the RSU and RSA activity is as follows:

		RSUs and PRSUs							RSAs and PRSAs
(in thousands, except weighted-average grant date fair value)		Shares			Weighted-average grant date fair value				Shares			Weighted-average grant date fair value
Outstanding as of January 31, 2019		648			$	55.20			256			$	61.93
Granted		421			73.02				—			—
Vested		(94	)		52.35				(11	)		62.75
Forfeited		(19	)		54.48				(10	)		61.72
Outstanding as of April 30, 2019		956			$	63.33			235			$	61.91

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901

+ Details

Name:	us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration