CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 5,280	$ 19,522
Short-term investments	142,655	321,586
Accounts receivable, net	62,308	85,453
Inventory	24,773	27,326
Income taxes receivable	964	6,193
Other current assets	7,804	4,671
Total current assets	243,784	464,751
Deferred income taxes, net	35,654	34,482
Intangible assets, net	528,364	551,040
Goodwill	181,206	181,206
Commercial license rights, net	10,267	10,110
Property and equipment, net	30,954	20,511
Operating lease right-of-use assets	24,711	16,542
Financing lease right-of-use assets	15,032	16,207
Other assets	6,316	2,741
Total assets	1,076,288	1,297,590
Current liabilities:
Accounts payable	19,153	8,403
Accrued liabilities	14,551	17,579
Income taxes payable	3,782	0
Current contingent liabilities	2,258	2,588
Deferred revenue	10,584	10,996
Current operating lease liabilities	2,501	2,053
Current financing lease liabilities	50	46
2023 convertible senior notes, net	114,974	0
Total current liabilities	167,853	41,665
2023 convertible senior notes, net	0	320,717
Long-term contingent liabilities	6,961	8,483
Deferred income taxes, net	42,669	59,095
Long-term operating lease liabilities	27,088	15,494
Long-term deferred revenue	7,428	9,270
Other long-term liabilities	21,924	21,707
Total liabilities	273,923	476,431
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value; 5,000 shares authorized; zero issued and outstanding at June 30, 2022 and December 31, 2021	0	0
Common stock, $0.001 par value; 60,000 shares authorized; 16,882 and 16,767 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively	17	17
Additional paid-in capital	335,471	372,969
Accumulated other comprehensive loss	(1,066)	(917)
Retained earnings	467,943	449,090
Total stockholders' equity	802,365	821,159
Total liabilities and stockholders' equity	$ 1,076,288	$ 1,297,590