Related Party Transactions - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Related Party Transaction [Line Items]
Net revenue	$ 492,500,000	$ 390,500,000	$ 999,300,000	$ 798,500,000
Carlyle Investment Management, L.L.C.
Related Party Transaction [Line Items]
Net revenue	900,000	200,000	1,800,000	1,800,000
Inventories, purchased	600,000		1,200,000
IT service fees	400,000		700,000
Consulting fees	400,000	200,000	1,100,000	400,000
Pharmacy related services, fees	1,300,000	1,600,000	2,900,000	3,000,000.0
Carlyle Investment Management, L.L.C. | Healthcare Equipment Company
Related Party Transaction [Line Items]
Inventories, purchased	100,000	0	$ 900,000	0
Carlyle Investment Management, L.L.C. | Consulting Services Agreement
Related Party Transaction [Line Items]
Agreement, initial term			10 years
Annual management fee			$ 3,000,000.0
Management fee and other out-of-pocket expenses	$ 800,000	$ 700,000	$ 1,500,000	$ 1,500,000