Condensed Consolidated Statements of Cash Flows Statement - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income (loss) including noncontrolling interests in operating subsidiaries	$ (26,385,000)	$ (50,818,000)
Adjustments to reconcile net loss including noncontrolling interests in operating subsidiaries to net cash provided by operating activities:
Gain on Conversion of Loan and Accrued Interest	(2,671,000)	0
Gain on exercise of warrant	(4,616,000)	0
Unrealized Gain (Loss) on Investments	12,698,000	0
Depreciation and amortization	11,134,000	21,604,000
Non-cash stock compensation	3,615,000	3,210,000
Impairment of Intangible Assets (Excluding Goodwill)	0	40,165,000
Other	(598,000)	18,000
Changes in assets and liabilities:
Restricted cash	11,512,000	(3,311,000)
Accounts receivable	12,505,000	29,175,000
Prepaid expenses and other assets	(1,474,000)	654,000
Accounts payable and accrued expenses	(5,054,000)	(5,880,000)
Royalties and contingent legal fees payable	(4,481,000)	2,976,000
Net cash provided by operating activities	6,185,000	37,793,000
Cash flows from investing activities:
Payments to Acquire Other Investments	(31,514,000)	0
Advances to Investee	(4,000,000)	0
Purchase of available-for-sale investments	(331,412,000)	(49,677,000)
Maturities and sale of available-for-sale investments	295,807,000	17,462,000
Patent portfolio investment costs	0	(1,000,000)
Purchases of property and equipment	0	(4,000)
Net cash provided by (used in) investing activities	(71,119,000)	(33,219,000)
Cash flows from financing activities:
Repurchased Restricted Common Stock	35,000	25,000
Proceeds from exercises of stock options	649,000	0
Net cash used in financing activities	614,000	(25,000)
Increase (decrease) in cash and cash equivalents	(64,320,000)	4,549,000
Cash and cash equivalents, beginning	127,540,000	135,223,000
Cash and cash equivalents, ending	63,220,000	139,772,000
Other Noncash Income (Expense)	$ 23,061,000	$ 0