CONDENSED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 116,178	$ 170,019
Accounts receivable	85,427	72,953
Inventory	15,963	9,643
Prepaid expenses and other current assets	6,107	3,105
Total current assets	223,675	255,720
Property and equipment, net	13,145	11,854
Operating lease assets	8,873	9,047
Intangible asset, net	386,289	29,503
Restricted cash	2,645
Other noncurrent assets	166	178
Total assets	634,793	306,302
Current liabilities
Accounts payable	6,139	6,247
Accrued expenses	18,814	33,480
Accrued rebates, returns and discounts	171,886	157,549
Current portion of term notes payable	46,859	3,833
Current portion of operating lease liabilities	676	656
Total current liabilities	244,374	201,765
Term notes payable, net of current portion	145,711	7,667
Convertible senior notes	94,383
Operating lease liabilities, net of current portion	9,262	9,438
Total liabilities	493,730	218,870
Commitments and contingencies (see Note 14)
Shareholders' equity:
Preferred stock, $0.001 par value; authorized shares - 5,000,000 at March 31, 2020 and December 31, 2019; issued and outstanding shares - none at March 31, 2020 and December 31, 2019
Common stock, $0.001 par value; authorized shares - 100,000,000 at March 31, 2020 and December 31, 2019; issued and outstanding shares - 34,306,040 at March 31, 2020 and 33,678,840 at December 31, 2019	34	34
Additional paid-in capital	500,478	447,297
Accumulated deficit	(359,449)	(359,899)
Total shareholders' equity	141,063	87,432
Total liabilities and shareholders' equity	$ 634,793	$ 306,302