CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 553,302	$ 528,392
Restricted cash		9,015
Accounts receivable, net of allowances of $621 and $525 at September 30, 2020 and December 31, 2019, respectively	55,830	43,068
Royalties and other receivables	95	148
Unbilled receivables		456
Inventories, net	78,531	54,832
Prepaid expenses and other current assets	8,970	5,917
Total current assets	696,728	641,828
Property, plant and equipment, net	55,355	48,455
Intangible assets, net	215,385	212,552
Goodwill	482,043	468,413
Deferred tax assets	2,192	2,920
Operating lease right of use assets	24,201	25,707
Other assets	412	238
Total assets	1,476,316	1,400,113
Current liabilities:
Accounts payable	14,483	11,425
Operating lease liability	4,460	3,557
Accrued liabilities	32,041	33,331
Total current liabilities	50,984	48,313
Convertible senior notes, net	240,942	232,767
Deferred tax liabilities	29,435	29,944
Operating lease liability, long-term	26,378	26,995
Other liabilities, long-term	3,707	2,326
Total liabilities	351,446	340,345
Commitments and contingencies (Note 10)
Stockholders' equity:
Preferred stock, $0.01 par value, 5,000,000 shares authorized, no shares issued or outstanding
Common stock, $0.01 par value; 80,000,000 shares authorized; 52,606,700 shares at September 30, 2020 and 52,078,258 shares at December 31, 2019 issued and outstanding	526	521
Additional paid-in capital	1,087,996	1,068,431
Accumulated other comprehensive loss	(9,723)	(15,027)
Retained earnings	46,071	5,843
Total stockholders' equity	1,124,870	1,059,768
Total liabilities and stockholders' equity	$ 1,476,316	$ 1,400,113