Business Combination - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Business Combination
Intangible assets, net of accumulated amortization	$ 91,877	$ 91,877	$ 96,471
Goodwill not deductible for tax purposes		105,800
Perrigo Animal Health Acquisition
Business Combination
Intangible assets, net of accumulated amortization	14,500	14,500
Current amortization expense	$ 600	$ 1,200