Net Income (Loss) Per Ordinary Share (Tables)

6 Months Ended

Jul. 31, 2018

Computation of Basic and Diluted Net Income (Loss) Per Ordinary Share

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

	Three Months Ended July 31,					Six Months Ended July 31,
	2018			2017		2018			2017
	(in thousands, except share and per share data)
Numerator:
Net income (loss)	$	(6,877	)	$	3,303	$	(16,883	)	$	5,867
Denominator:
Weighted-average ordinary shares - basic		33,219,152			33,227,717		33,276,976			33,240,767
Effect of potentially dilutive securities:
Employee stock options		—			984,064		—			995,107
Restricted stock and restricted stock units		—			356,253		—			389,498
Employee stock purchase plan		—			4,893		—			3,632
Weighted-average ordinary shares - diluted		33,219,152			34,572,927		33,276,976			34,629,004
Net income (loss) per ordinary share:
Basic	$	(0.21	)	$	0.10	$	(0.51	)	$	0.18
Diluted	$	(0.21	)	$	0.10	$	(0.51	)	$	0.17

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

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

	Three Months Ended July 31,				Six Months Ended July 31,
	2018		2017		2018		2017
Options to purchase ordinary shares		1,077,045		271,516		1,134,670		266,619
Restricted stock and restricted stock units		1,245,210		796,472		1,120,654		854,799
Employee stock purchase plan		7,202		—		23,542		12,974
		2,329,457		1,067,988		2,278,866		1,134,392