Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Feb. 16, 2017
Summary of Significant Accounting Policies [Line Items]
Gain (loss) on investment, net of conversion	$ 158,979,000		$ 153,568,000
Gain on Conversion of Loan and Accrued Interest	0	$ 0	2,671,000	$ 0
Short-term investments	57,487,000		57,487,000		$ 19,443,000
Available-for-sale Securities, Amortized Cost Basis	57,427,000		57,427,000		19,403,000
Available-for-sale Securities, Gross Unrealized Gain			60,000		40,000
Available-for-sale Securities, Gross Unrealized Loss			0		0
Available-for-sale Securities	57,487,000		57,487,000		19,443,000
Investments at fair value	208,796,000		208,796,000		0
Fair Value of Profits Interest	8,235,000		8,235,000			$ 722,000
Gain on exercise of warrant	0	0	4,616,000	0
Change in fair value of investment, net	158,979,000	$ 0	146,281,000	$ 0
Purchases and issues			55,228,000
Total recurring fair value measurements(1)	208,796,000		208,796,000		0
Deferred Tax Liabilities, Investments	$ 54,108,000		$ 54,108,000
Effective tax rate	0.00%	(58.00%)	(2.00%)	56.00%
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 158,585,000	$ 16,551,000	$ 134,919,000	$ (28,148,000)
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Useful life of patents and patent rights			1 year
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Useful life of patents and patent rights			7 years
Fair Value Assumptions, Expected Volatility Rate			50.00%
Geometric Brownian Motion [Member]
Summary of Significant Accounting Policies [Line Items]
Fair Value Assumptions, Expected Term			5 years
Fair Value Assumptions, Expected Volatility Rate			45.00%
Geometric Brownian Motion [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Fair Value Assumptions, Expected Term			1 year
Fair Value Assumptions, Risk Free Interest Rate			1.00%
Geometric Brownian Motion [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Fair Value Assumptions, Expected Term			10 years
Fair Value Assumptions, Risk Free Interest Rate			2.00%
Fair Value, Inputs, Level 1 [Member]
Summary of Significant Accounting Policies [Line Items]
Short-term investments	57,487,000		$ 57,487,000
Investments at fair value	0		0
Fair Value, Inputs, Level 2 [Member]
Summary of Significant Accounting Policies [Line Items]
Short-term investments	0		0
Investments at fair value	0		0
Fair Value, Inputs, Level 3 [Member]
Summary of Significant Accounting Policies [Line Items]
Short-term investments	0		0
Investments at fair value	208,796,000		208,796,000
Common Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Gain on Conversion of Loan and Accrued Interest			2,671,000
Gain on exercise of warrant			0
Change in fair value of investment, net			115,381,000
Purchases and issues			54,202,000
Total recurring fair value measurements(1)	172,254,000		172,254,000		0
Warrant [Member]
Summary of Significant Accounting Policies [Line Items]
Gain on Conversion of Loan and Accrued Interest			0
Gain on exercise of warrant			4,616,000
Change in fair value of investment, net			30,900,000
Purchases and issues			1,026,000
Total recurring fair value measurements(1)	$ 36,542,000		$ 36,542,000		$ 0