Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 174,371	$ 227,323
Marketable securities	95,287	248
Accounts receivable, net of allowance for doubtful accounts of $70 and $71, respectively	27,658	32,260
Other receivables	2,915	2,133
Inventories	4,520	5,715
Prepaid expenses and other assets	4,769	10,067
Total current assets	309,520	277,746
Property and equipment, net of accumulated depreciation	523	589
Intangible assets, net of accumulated amortization	123,214	137,159
Goodwill	18,106	18,162
Other assets	13,159	53,783
Total assets	464,522	487,439
Current liabilities:
Accounts payable and other accrued liabilities	49,886	58,117
Accrued payroll and benefits	4,946	9,261
Deferred revenue	0	3,872
FOLOTYN development liability	211	275
Convertible senior notes	39,427	38,224
Total current liabilities	94,470	109,749
FOLOTYN development liability, less current portion	11,980	12,111
Deferred revenue, less current portion	0	315
Acquisition-related contingent obligations	6,755	6,272
Deferred tax liabilities	1,447	1,438
Other long-term liabilities	5,751	6,215
Total liabilities	120,403	136,100
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 300,000,000 shares authorized; 105,130,603 and 100,742,735 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively	103	100
Additional paid-in capital	829,052	837,347
Accumulated other comprehensive (loss) income	(3,088)	15,999
Accumulated deficit	(481,948)	(502,107)
Total stockholders’ equity	344,119	351,339
Total liabilities and stockholders’ equity	$ 464,522	$ 487,439