Accounts Payable And Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Commercial rebates and fees	$ 21,056	$ 16,362
Accounts payable	17,582	6,474
Professional, license, and other fees and expenses	9,252	5,257
Accrued compensation and related liabilities	5,994	7,504
Accrued manufacturing expenses	763	9,434
Total accounts payable and accrued expenses	$ 54,647	$ 45,031