Net Income Per Ordinary Share (Tables)

9 Months Ended

Oct. 31, 2016

Computation of Basic and Diluted Net Income Per Ordinary Share

The following table sets forth the computation of basic and diluted net income per ordinary share for the periods indicated:

	Three Months Ended October 31,				Nine Months Ended October 31,
	2016		2015		2016		2015
	(in thousands, except share and per share data)
Numerator:
Net income	$	29,045	$	29,461	$	39,460	$	71,412
Less: amount allocable to unvested early exercised options		—		—		—		—
Net income allocable to ordinary shareholders - basic	$	29,045	$	29,461	$	39,460	$	71,412
Undistributed earnings reallocated to ordinary shareholders		—		—		—		—
Net income allocable to ordinary shareholders - diluted	$	29,045	$	29,461	$	39,460	$	71,412
Denominator:
Weighted-average ordinary shares outstanding		32,670,784		31,815,588		32,552,077		31,476,724
Less: weighted-average unvested early exercised options subject to repurchase		—		—		—		(56	)
Weighted-average ordinary shares - basic		32,670,784		31,815,588		32,552,077		31,476,668
Effect of potentially dilutive securities:
Employee stock options		1,159,739		1,199,065		1,094,786		1,316,228
Restricted stock and restricted stock units		753,178		881,605		583,144		957,263
Employee stock purchase plan		16,291		2,944		12,058		8,382
Weighted-average ordinary shares - diluted		34,599,992		33,899,202		34,242,065		33,758,541
Net income per ordinary share:
Basic	$	0.89	$	0.93	$	1.21	$	2.27
Diluted	$	0.84	$	0.87	$	1.15	$	2.12

Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Net Income Per Ordinary Share

The following weighted-average potentially dilutive securities were excluded from the computation of diluted net income per ordinary share as their effect would have been antidilutive:

	Three Months Ended October 31,				Nine Months Ended October 31,
	2016		2015		2016		2015
Options to purchase ordinary shares		189,147		135,617		380,460		73,377
Restricted stock and restricted stock units		606,843		237,285		900,701		110,096
Employee stock purchase plan		24,221		22,865		19,534		12,098
Early exercised options subject to repurchase		—		—		—		56
		820,211		395,767		1,300,695		195,627