Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jul. 31, 2015	Jan. 31, 2015
Current assets:
Cash and cash equivalents	$ 199,577	$ 170,291
Marketable securities	40,177	37,703
Accounts receivable, net	42,137	40,180
Inventories	27,773	21,693
Restricted cash	8	8
Deferred tax assets, current	2,019	1,990
Prepaid expenses and other current assets	2,228	3,506
Total current assets	313,919	275,371
Property and equipment, net	2,891	3,075
Deferred tax assets, non-current	4,130	3,936
Intangible assets, net	4,107	0
Goodwill	26,601
Other assets	2,029	1,902
Total assets	353,677	284,284
Current liabilities:
Accounts payable	20,314	21,036
Accrued liabilities	24,303	18,699
Income taxes payable	2,939	748
Deferred tax liabilities, current	72	92
Deferred revenue, current	7,078	4,907
Total current liabilities	54,706	45,482
Deferred revenue, non-current	94	198
Other long-term liabilities	2,704	1,393
Total liabilities	$ 57,504	$ 47,073
Commitments and contingencies (Note 13)
Shareholders' equity:
Preference shares, $0.00045 par value per share, 20,000,000 shares authorized and no shares issued and outstanding at July 31, 2015 and January 31, 2015, respectively	$ 0	$ 0
Ordinary shares, $0.00045 par value per share, 200,000,000 shares authorized at July 31, 2015 and January 31, 2015, respectively; 31,661,906 shares issued and outstanding at July 31, 2015; 30,837,529 shares issued and outstanding at January 31, 2015	14	14
Additional paid-in capital	157,598	140,564
Accumulated other comprehensive loss	(24)	(1)
Retained earnings	138,585	96,634
Total shareholders’ equity	296,173	237,211
Total liabilities and shareholders' equity	$ 353,677	$ 284,284