Legal, Regulatory Matters and Contingencies (Details) $ in Millions			1 Months Ended		3 Months Ended	9 Months Ended	12 Months Ended
	Jan. 22, 2018 item	Dec. 17, 2017 USD ($)	Sep. 30, 2014 lawsuit	Jul. 31, 2014 lawsuit patent	Dec. 31, 2016 customer	Mar. 31, 2018 USD ($) Distributor lawsuit tranche patent item	Jun. 30, 2016 lawsuit	Oct. 31, 2017 state item	Oct. 06, 2017 item	Jun. 30, 2017 USD ($)	Nov. 30, 2016 item	Nov. 24, 2015 USD ($)
Legal, Regulatory Matters and Contingencies
Number of drugs	30					18		13	6
Compliance reviews, number of customers | customer					1
Liability estimate | $						$ 9.3				$ 9.3
Indemnification asset | $												$ 8.3
Number of lawsuits | lawsuit			1	2			2
Number of manufacturers and distributors | Distributor						30
Number of tranches | tranche						3
Number of States | state								45
Patents allegedly invalid | patent						2
Patents allegedly infringed | patent				2
Patents allegedly invalid, unenforceable and/or not infringed | patent						15
Opt-out purchasers, number	3
Other Income
Legal, Regulatory Matters and Contingencies
Amount received from settlement agreement | $		$ 3.5
Officers
Legal, Regulatory Matters and Contingencies
Number of officers											2
Doxycycline Monohydrate
Legal, Regulatory Matters and Contingencies
Number of drugs								1
Minimum
Legal, Regulatory Matters and Contingencies
Number of lawsuits | lawsuit						100