Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 88,522	$ 28,483
Short-term investments	143,976	53,318
Accounts receivable, less allowance for credit losses of $1,096 and $1,124	22,892	28,046
Inventories	32,809	29,414
Prepaid and other current assets	3,835	3,899
Total current assets	292,034	143,160
Property and equipment, net	30,236	32,646
Operating lease right-of-use assets	2,573	4,032
Long-term investments	15,339	12,675
Intangible assets, net	128,904	129,881
Goodwill	234,781	234,781
Other noncurrent assets	366	705
Total Assets	704,233	557,880
Current liabilities:
Accounts payable	12,467	14,948
Accrued liabilities	17,884	32,750
Other current liabilities and current maturities of long-term debt and leases	7,701	2,218
Total current liabilities	38,052	49,916
Long-term debt	54,154	59,634
Finance lease liabilities	11,377	11,774
Operating lease liabilities	1,581	2,796
Contingent consideration and other noncurrent liabilities	182,207	186,417
Total Liabilities	287,371	310,537
Commitments and contingencies (Note 8)
Stockholders' Equity:
Common stock, $0.001 par value, 90,000 shares authorized and 44,939 and 39,655 issued and outstanding	45	40
Additional paid-in capital	723,754	529,658
Accumulated other comprehensive loss	(96)	(158)
Accumulated deficit	(306,841)	(282,197)
Total Stockholders' Equity	416,862	247,343
Total Liabilities and Stockholders' Equity	$ 704,233	$ 557,880