CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 68,203	$ 51,326
Short-term investments	395,344	334,038
Restricted cash	3,604	3,604
Accounts receivable, net	61,004	64,922
Inventories	62,805	44,470
Deferred taxes and other current assets	21,880	18,147
Total current assets	612,840	516,507
Property and equipment, net	92,260	78,827
Severance assets	10,002	9,474
Intangible assets, net	37,340	42,067
Goodwill	200,743	200,743
Deferred taxes and other long-term assets	9,813	15,600
Total assets	962,998	863,218
Current liabilities:
Accounts payable	50,241	39,811
Accrued liabilities	73,447	61,974
Deferred revenue	16,186	14,758
Capital lease liabilities, current	1,040	1,102
Total current liabilities	140,914	117,645
Accrued severance	13,087	11,850
Deferred revenue	10,348	8,942
Capital lease liabilities		494
Other long-term liabilities	26,276	22,535
Total liabilities	$ 190,625	$ 161,466
Commitments and Contingencies (Note 7)
Shareholders' equity
Ordinary shares	$ 197	$ 192
Additional paid-in capital	649,976	615,148
Accumulated other comprehensive income (loss)	2,024	(4,020)
Retained earnings	120,176	90,432
Total shareholders' equity	772,373	701,752
Total liabilities and shareholders' equity	$ 962,998	$ 863,218