Deferred Legal Fees and Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite lived intangible assets disclosures
Gross Carrying Amount	$ 16,490	$ 976
Less accumulated Amortization	(1,283)	(18)
Additional disclosures
Deferred legal fees	19,860	22,503
Net book value of intangible assets	16,490	976
Amortization expense	1,300	200	$ 200
Oxtellar XR
Additional disclosures
Reduction Of Deferred Legal Cost	16,600
Capitalized patent defense costs
Finite lived intangible assets disclosures
Gross Carrying Amount	$ 17,773	$ 994
Minimum | Capitalized patent defense costs
Finite lived intangible assets disclosures
Average Life	9 years 6 months	9 years 6 months
Maximum | Capitalized patent defense costs
Finite lived intangible assets disclosures
Average Life	11 years	11 years