Litigation (Details) $ in Thousands	1 Months Ended
	Oct. 31, 2021 claim	Nov. 30, 2020 USD ($)	Jun. 30, 2020	Mar. 31, 2020 petition
Sandoz Inc. | Smiths Medical ASD, Inc.
Litigation
Payments for legal settlements | $		$ 4,250
Liquidia Technologies, Inc.
Litigation
Number of petitions | petition				2
Number of claims with proven invalidity	7
Number of claims without proven invalidity	2
Time period to file a preliminary response to the petitions			45 days
Maximum period for which the FDA is automatically precluded from approving ANDA			30 months