Goodwill and Intangible Assets - Additional Information (Details) $ in Thousands	1 Months Ended		3 Months Ended				12 Months Ended
	May 31, 2018 USD ($) product	Feb. 28, 2018 USD ($) product	Jun. 30, 2019 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
License Agreement
Other current liabilities			$ 3,652
Intangible assets, net			411,229				$ 424,425
Loss on sale of intangible asset							$ (15,514)
Impairment charges						$ 65,100		$ 65,100
ANDOR | License
License Agreement
Agreed amount of license			17,000
License amount paid			1,000
Amount to be paid on timing of Methylphenidate sales			$ 16,000
Term of remaining payment (in years)			4 years
KUPI
License Agreement
Loss on sale of intangible asset				$ (15,500)
Intangible asset, carrying value at the time of sale				$ 15,800
Other Intangible Assets
License Agreement
Intangible assets, net	$ 12,000	$ 5,000
Number of products acquired | product	20	5
In-process research and development
License Agreement
Value assigned, abandoned project								23,000
Impairment charges					$ 23,000			$ 23,000