CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accrued Income Taxes, Current	$ 3,293	$ 0
Current assets:
Cash and cash equivalents	291,377	94,302
Short-term investments	2,310	5,238
Receivables from licensees	300	300
Deferred tax assets	375	377
Notes receivable	57,597	1,208
Prepaid and other current assets	3,938	6,272
Total current assets	355,897	107,697
Property and equipment, net	62	41
Royalty rights	259,244	235,677
Notes and other receivables, long-term	305,615	193,840
Long-term deferred tax assets	33,799	6,700
Other assets	7,733	0
Total assets	962,350	543,955
Current liabilities:
Accounts payable	318	287
Accrued liabilities	8,876	11,857
Term loan payable	0	74,397
Convertible Notes Payable, Current	175,496	320,883
Total current liabilities	187,983	407,424
Convertible notes payable	276,228	0
Other long-term liabilities	37,702	23,042
Total liabilities	501,913	430,466
Commitments and contingencies (Note 12)
Stockholders' equity (deficit):
Preferred stock, par value $0.01 per share, 10,000 shares authorized; no shares issued and outstanding	0	0
Common stock, par value $0.01 per share, 350,000 shares authorized; 162,186 and 139,935 shares issued and outstanding at December 31, 2014 and 2013, respectively	1,622	1,399
Additional paid-in capital	(119,874)	(233,173)
Accumulated other comprehensive loss	2,949	(4,888)
Retained earnings	575,740	350,151
Total stockholders' equity (deficit)	460,437	113,489
Total liabilities and stockholders' equity (deficit)	$ 962,350	$ 543,955