Goodwill and Intangible Assets - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended			12 Months Ended
	Sep. 27, 2020	Dec. 27, 2020	Jun. 28, 2020	Dec. 29, 2019	Sep. 27, 2020	Jun. 29, 2020
Goodwill [Line Items]
Impairment of goodwill					$ 0
Carrying value	$ 2,378,558,000	$ 2,414,872,000			2,378,558,000
Goodwill	993,498,000	1,017,909,000			993,498,000
Amortization expense		3,400,000		$ 2,900,000
Australia
Goodwill [Line Items]
Percentage negative growth			7.00%
All reporting units excluding ASP
Goodwill [Line Items]
Percentage of excess of fair value over carrying value						80.00%
ASP
Goodwill [Line Items]
Impairment of goodwill	15,800,000
Carrying value	144,900,000				144,900,000
Goodwill	95,500,000				95,500,000
GSG
Goodwill [Line Items]
Gross amounts of goodwill	534,000,000.0	539,900,000			534,000,000.0
Accumulated impairment	17,700,000	17,700,000			17,700,000
Goodwill	516,315,000	522,149,000			516,315,000
CIG
Goodwill [Line Items]
Gross amounts of goodwill	598,700,000	617,300,000			598,700,000
Accumulated impairment	121,500,000	121,500,000			121,500,000
Goodwill	$ 477,183,000	$ 495,760,000			$ 477,183,000
CIG | ASP
Goodwill [Line Items]
Percentage of excess of fair value over carrying value						20.00%