CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues
Interest revenue	$ 5,457	$ 8,964
Product revenue	12,581	0
Licenses Revenue	100	(193)
Total revenues	45,440	103,124
Cost of Revenue	2,552	0
Operating expenses
Cost of goods sold	6,015	0
General and administrative	12,576	9,846
Selling and Marketing Expense	2,584	0
Research and Development Expense	1,766	0
Change in fair value of contingent consideration	1,442	0
Total operating expenses	26,935	9,846
Operating income	18,505	93,278
Non-operating expense, net
Interest and other income, net	212	113
Interest expense	(4,971)	(4,550)
Total non-operating expense, net	(4,759)	(4,437)
Income before income taxes	13,746	88,841
Income tax expense	6,552	32,954
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	7,194	55,887
Net Income (Loss) Attributable to Noncontrolling Interest	(47)	0
Net income	$ 7,241	$ 55,887
Net income per share
Basic (in Dollars per Share)	$ 0.04	$ 0.34
Net income per diluted share (in Dollars per Share)	$ 0.04	$ 0.34
Weighted average shares outstanding
Basic (in Shares)	163,745	163,701
Diluted (in Shares)	163,992	163,835
Cash dividends declared per common share (in Dollars per Share)	$ 0.00	$ 0.05
Queen et al. patents [Member]
Revenues
Royalty revenues	$ 14,156	$ 121,455
Acquired rights [Member]
Revenues
Royalty revenues	$ 13,146	$ (27,102)