Commitments and Contingencies (Details) $ in Millions			3 Months Ended		12 Months Ended
	Mar. 14, 2019 USD ($)	Sep. 25, 2003 USD ($)	Sep. 27, 2002 USD ($)	Sep. 28, 2001 USD ($)	Dec. 30, 2016 USD ($)	Dec. 31, 1980 subsidiary	Jun. 28, 2019 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Award from litigation settlement	$ 17.0
Gain on litigation settlement	16.7
Litigation expense	$ 0.3
Kunia Well Site
Commitments and Contingencies Disclosure [Line Items]
Number of plaintiffs | subsidiary						1
Accrual for environmental loss contingencies, period increase (decrease)			$ 7.0	$ 15.0	$ 0.4
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs			$ 26.1	$ 19.1
Accrual for environmental loss contingencies, term		10 years
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup							$ 13.4
Accrual for environmental loss contingencies, undiscounted, due within one year							0.3
Accrual for environmental loss contingencies, undiscounted, due in second year							1.1
Accrual for environmental loss contingencies, undiscounted, due in third year							1.0
Accrual for environmental loss contingencies, undiscounted, due in fourth year							0.9
Accrual for environmental loss contingencies, undiscounted, due in fifth year							0.9
Kunia Well Site | Other long-term liabilities
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs							13.1
Kunia Well Site | Accounts payable and accrued expenses
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs							0.3
Kunia Well Site | Minimum
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs		$ 12.9
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup							13.4
Kunia Well Site | Maximum
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs		$ 25.4
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup							$ 28.7