Condensed Consolidated Statements of Cash Flows Statement - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net Loss, Including Portion Attributable to Noncontrolling Interest	$ (50,818,000)	$ (12,775,000)
Adjustments to reconcile net loss including noncontrolling interests in operating subsidiaries to net cash used in operating activities:
Depreciation and amortization	21,604,000	26,386,000
Non-cash stock compensation	3,210,000	6,424,000
Impairment of Intangible Assets (Excluding Goodwill)	40,165,000	0
Other	18,000	(127,000)
Changes in assets and liabilities:
Restricted cash	(3,311,000)	(10,718,000)
Accounts receivable	29,175,000	(17,382,000)
Prepaid expenses and other assets	654,000	(791,000)
Accounts payable and accrued expenses	(5,880,000)	(3,292,000)
Royalties and contingent legal fees payable	2,976,000	5,830,000
Net cash used in operating activities	37,793,000	(6,445,000)
Cash flows from investing activities:
Maturities and sale of available-for-sale investments	17,462,000	44,845,000
Purchase of available-for-sale investments	(49,677,000)	(23,296,000)
Investments in patents/ patent rights	(1,000,000)	(18,667,000)
Purchases of property and equipment	(4,000)	(8,000)
Net cash provided by investing activities	(33,219,000)	2,874,000
Cash flows from financing activities:
Payments of Dividends	0	(12,749,000)
Payments for Repurchase of Common Stock	25,000	0
Proceeds from exercises of stock options	0	938,000
Net cash used in financing activities	(25,000)	(11,811,000)
Increase (decrease) in cash and cash equivalents	4,549,000	(15,382,000)
Cash and cash equivalents, beginning	135,223,000	134,466,000
Cash and cash equivalents, ending	$ 139,772,000	$ 119,084,000