Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jul. 24, 2020	Oct. 02, 2019	Jul. 02, 2019
Tax Credit Carryforward [Line Items]
CARES Act, discrete tax benefit	$ 9,124
Proceeds from Income Tax Refunds	18,753		$ 3,351
Income tax (benefit) provision	$ (5,040)	$ 2,234	$ (9,258)	$ 3,641
Effective income tax rate	30.10%	(33.60%)	(102.30%)	(13.70%)
Bankruptcy claims, amount paid to settle claims					$ 800
Speciality Pharama | Internal Revenue Service (IRS)
Tax Credit Carryforward [Line Items]
Bankruptcy claims, amount of filed claims likely to be denied	$ 1,937		$ 1,937			$ 9,302	$ 50,695
Bankruptcy claims, amount paid to settle claims	$ 1,937		$ 1,937