CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 128,249	$ 118,697
Accounts receivable	66,036	9,969
Inventory	7,902	1,813
Prepaid expenses and other current assets	5,526	3,005
Total current assets	207,713	133,484
Property and equipment, net	1,612	1,826
Intangible assets, net	486,100
Restricted cash	703	97
Other long-term assets	150	161
Total assets	696,278	135,568
Current liabilities
Accounts payable	9,336	5,684
Accrued expenses	17,436	8,541
Accrued rebates, returns and discounts	92,400	15,784
Current portion of asset acquisition obligations	131,056
Current portion of term loan payable		1,479
Total current liabilities	250,228	31,488
Asset acquisition obligations, long-term	343,727
Term loan payable, long-term	11,500
Total liabilities	605,455	31,488
Commitments and contingencies (see Note 12)
Shareholders' equity:
Preferred stock, $0.001 par value; authorized shares - 5,000,000 at March 31, 2018 and December 31, 2017; issued and outstanding shares - none at March 31, 2018 and December 31, 2017
Common stock, $0.001 par value; authorized shares - 100,000,000 at March 31, 2018 and December 31, 2017; issued and outstanding shares - 33,027,579 at March 31, 2018 and 32,770,678 at December 31, 2017	33	33
Additional paid-in capital	407,491	402,096
Accumulated deficit	(316,701)	(298,049)
Total shareholders' equity	90,823	104,080
Total liabilities and shareholders' equity	$ 696,278	$ 135,568