Summary of Significant Accounting Policies - Segments (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2021 USD ($) segment	Mar. 31, 2020 USD ($)
Medical Indication Information
Total net sales	$ 112,370	$ 144,372	$ 372,769	$ 407,824
Number of reportable segments | segment			1
Analgesic
Medical Indication Information
Total net sales	3,836	2,811	$ 10,528	6,806
Anti-Psychosis
Medical Indication Information
Total net sales	11,678	27,858	38,023	78,588
Cardiovascular
Medical Indication Information
Total net sales	16,573	21,746	52,623	67,325
Central Nervous System
Medical Indication Information
Total net sales	24,509	18,566	71,648	57,154
Endocrinology
Medical Indication Information
Total net sales	6,822		19,551
Gastrointestinal
Medical Indication Information
Total net sales	16,817	20,745	52,492	56,020
Infectious Disease
Medical Indication Information
Total net sales	10,610	21,749	55,586	51,722
Migraine
Medical Indication Information
Total net sales	5,169	12,886	20,942	32,907
Respiratory/Allergy/Cough/Cold
Medical Indication Information
Total net sales	2,548	2,966	6,241	8,747
Urinary
Medical Indication Information
Total net sales	1,566	1,149	4,385	2,817
Other
Medical Indication Information
Total net sales	8,617	8,051	24,661	27,847
Contract manufacturing revenue
Medical Indication Information
Total net sales	$ 3,625	$ 5,845	$ 16,089	$ 17,891