Senior Credit Facility - Credit Agreement (Details) - USD ($)					3 Months Ended		12 Months Ended
	Mar. 12, 2020	Sep. 28, 2019	Jun. 15, 2017	Feb. 19, 2016	Mar. 28, 2020	Mar. 30, 2019	Dec. 28, 2019
Line of Credit Facility [Line Items]
Unsecured Debt					$ 1,020,000,000.0	$ 628,300,000	$ 397,500,000
Unamortized Debt Issuance Costs					(900,000)	(1,300,000)	(1,000,000.0)
Unsecured debt, net of debt issuance costs					1,019,100,000	627,000,000.0	396,500,000
Unsecured Debt, Current					(30,000,000)	(21,250,000)	(30,000,000)
Long-term Debt, Excluding Current Maturities					989,074,000	605,695,000	366,480,000
Letters of Credit Outstanding, Amount					39,000,000.0	35,400,000	32,000,000.0
Senior credit facility, maximum borrowing capacity				$ 500,000,000	500,000,000
Swingline Loan, Maximum Borrowing Capacity				50,000,000	$ 50,000,000
Debt instrument, basis spread on variable rate					0.625%
Commitment fee for unused capacity		0.10%
Debt Instrument, Interest Rate, Stated Percentage - June 2017 Term Loan					1.00%
Compensating Balance, Amount					$ 0
Debt Instrument, Covenant Compliance		all
Amount of incremental credit facility which will result in modification of debt covenants					$100 million or greater
Base Rate
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate at Period End					3.25%
London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate at Period End					0.989%
Minimum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate					0.50%
Commitment fee for unused capacity					0.075%
Maximum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate					1.125%
Commitment fee for unused capacity					0.20%
February 2016 Term Loan
Line of Credit Facility [Line Items]
Notional Amount, Current					$ 140,000,000.0	155,000,000.0	145,000,000.0
Term Loan, Maximum Borrowing Capacity				$ 200,000,000
Due in years one and two February 2016 Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Amount of Periodic Payment					10,000,000
Due in years three through Maturity February 2016 Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Amount of Periodic Payment					20,000,000
June 2017 Term Loan
Line of Credit Facility [Line Items]
Notional Amount, Current					85,000,000.0	91,300,000	87,500,000
Term Loan, Maximum Borrowing Capacity			$ 100,000,000
Due in years one and two June 2017 Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Amount of Periodic Payment					5,000,000
Due in years three through five June 2017 Term Loan [Member] [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Amount of Periodic Payment					10,000,000
Term Loan (Member) [Member]
Line of Credit Facility [Line Items]
Notional Amount, Current					$ 200,000,000.0	0	0
Term Loan, Maximum Borrowing Capacity	$ 200,000,000
Debt instrument, basis spread on variable rate					75.00%
Number of Financial Covenants [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Covenant Description					two material covenants
2016 Senior Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Month-end Outstanding Amount					$ 445,000,000.0	$ 232,000,000.0	$ 15,000,000.0
Fixed Charge Coverage Ratio Minimum Requirement [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Covenant Description					2.00 to 1.0
Leverage Ratio Maximum Requirement [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Covenant Description					4.00 to 1.0