Long-Term Borrowings - Additional Information (Details) - USD ($) $ in Thousands		6 Months Ended		12 Months Ended
	Mar. 05, 2020	Mar. 25, 2023	Mar. 25, 2023	Sep. 24, 2022	Dec. 28, 2022
Debt Instrument [Line Items]
Stated interest rate (in hundredths)					5.50%
Ownership interest in Suburban Energy Finance Corp (in hundredths)		100.00%	100.00%
Long-term borrowings		$ 1,246,609	$ 1,246,609	$ 1,089,600	$ 80,645
Consolidated fixed charge coverage ratio, minimum			1.75
Long-term debt maturities, 2023		0	$ 0
Long-term debt maturities, 2024		0	0
Long-term debt maturities, 2025		180,500	180,500
Long-term debt maturities, 2026		0	0
Long-term debt maturities, 2027		350,000	350,000
Long-term debt maturities, 2027 and thereafter		$ 730,645	$ 730,645
Federal Funds Rate [Member]
Debt Instrument [Line Items]
Description of applicable interest rate on borrowings			Federal Funds Rate
Margin over basis rate (in hundredths)			0.50%
Amended Credit Agreement Due 2025 [Member]
Debt Instrument [Line Items]
Weighted average interest rate (in hundredths)		7.00%	7.00%
Amended Credit Agreement Due 2025 [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Description of applicable interest rate on borrowings			Federal Funds Rate
Margin over basis rate (in hundredths)			0.005%
Amended Credit Agreement Due 2025 [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Margin over basis rate (in hundredths)			1.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 05, 2025		Mar. 05, 2025
Long-term borrowings		$ 180,500	$ 180,500	89,600
Consolidated interest coverage ratio, minimum			2.5
Total consolidated leverage ratio			5.75
Senior secured unconsolidated leverage ratio maximum			3.25
Standby letters of credit issued under the Revolving Credit Facility		42,825	$ 42,825
Standby letters of credit issued under the Revolving Credit Facility, expiration date			Mar. 15, 2024
Revolving Credit Facility [Member] | Third Amended and Restated Credit [Member]
Debt Instrument [Line Items]
Long-term borrowings		$ 180,500	$ 180,500	$ 89,600
Credit Facility, maximum amount	$ 500,000
5.875% Senior Notes due March 1, 2027 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		5.875%	5.875%	5.875%
Maturity date		Mar. 01, 2027	Mar. 01, 2027	Mar. 01, 2027
5.0 % Senior Notes due June 1, 2031 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		5.00%	5.00%	5.00%
Maturity date			Jun. 01, 2031	Jun. 01, 2031
Date public offering completed			May 24, 2021
Percentage of principal amount at which debt was issued (in hundredths)		100.00%	100.00%
Aggregate principal amount		$ 650,000	$ 650,000
5.5% Senior Notes due June 1, 2024 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		5.50%	5.50%
5.75% Senior Notes due March 1, 2025 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		5.75%	5.75%
Senior Notes [Member] | 5.875% Senior Notes due March 1, 2027 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		5.875%	5.875%
Maturity date			Mar. 01, 2027
Date public offering completed			Feb. 14, 2017
Ownership interest in Suburban Energy Finance Corp (in hundredths)		100.00%	100.00%
Long-term borrowings		$ 350,000	$ 350,000	$ 350,000
Percentage of principal amount at which debt was issued (in hundredths)		100.00%	100.00%
Percentage of the principal amount repurchase offer under change of control provision (in hundredths)		101.00%	101.00%
Repurchase of debt due to decline in rating after consummation of change of control, period			90 days
Senior Notes [Member] | 7.375% Senior Notes due August 1, 2021 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		7.375%	7.375%
Senior Notes [Member] | 5.0 % Senior Notes due June 1, 2031 [Member]
Debt Instrument [Line Items]
Long-term borrowings		$ 650,000	$ 650,000	$ 650,000
Percentage of the principal amount repurchase offer under change of control provision (in hundredths)		101.00%	101.00%
Repurchase of debt due to decline in rating after consummation of change of control, period			90 days