Subsequent Events (Details) - Subsequent event $ in Millions	May 04, 2018 USD ($) item
Asset Purchase Agreement
Number of portfolio acquired | item	23
Number of portfolio to be acquired pending for FDA approval | item	1
Purchase price	$ 12
Purchase price paid in cash	10
Purchase price paid within five days after filing of transfer of ownership letters with FDA for ANDAs	1
Purchase price paid within five days after Company first supplies or distributes any products relating to any of the purchased ANDAs to a third party	$ 1