Contractual applicable interest rate for funds borrowed, under the debt agreement.

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Percentage of original principal amount of debt at which debt can be redeemed by the issuer.

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Increase to maximum ratio of indebtedness to EBITDA.

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The interest coverage ratio.

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The contingent increase above the maximum borrowing capacity under the credit facility, if any one or more of the existing banks or new banks agree to provide such increased commitment amount.

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Maximum borrowing capacity in foreign currencies under the credit facility.

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Represents the number of quarters included in the interest margin period.

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Ratio of debt to EBITDA.

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No definition available.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Debt - Credit Agreements (Details)		3 Months Ended	9 Months Ended
Debt - Credit Agreements (Details)	Sep. 14, 2021 USD ($)	Sep. 26, 2021 USD ($)	Sep. 26, 2021 USD ($) item	Dec. 27, 2020 USD ($)
Debt
Outstanding debt		$ 425,000,000	$ 425,000,000	$ 350,000,000
Debt issuance costs		10,085,000	10,085,000	1,708,000
Previous Credit Facility
Debt
Line of credit facility, maximum borrowing capacity		800,000,000.0	800,000,000.0
PJI Facilities
Debt
Line of credit facility, maximum borrowing capacity		600,000,000.0	600,000,000.0
Outstanding debt		25,000,000.0	$ 25,000,000.0
Number of quarters in interest margin period \| item			4
Line of credit facility, maximum borrowing capacity of foreign currencies		50,000,000.0	$ 50,000,000.0
Additional amount that company has option to increase borrowing capacity			500,000,000.0
Line of credit facility, remaining availability		572,300,000	$ 572,300,000
PJI Facilities \| Minimum
Debt
Percentage of commitment fee on unused credit facility			0.18%
PJI Facilities \| Maximum
Debt
Percentage of commitment fee on unused credit facility			0.30%
PJI Facilities \| LIBOR \| Minimum
Debt
Interest margin rate on debt			1.25%
PJI Facilities \| LIBOR \| Maximum
Debt
Interest margin rate on debt			2.00%
PJI Facilities \| Base rate \| Minimum
Debt
Interest margin rate on debt			0.25%
PJI Facilities \| Base rate \| Maximum
Debt
Interest margin rate on debt			1.00%
PJI Facilities \| Federal funds rate
Debt
Interest margin rate on debt			0.50%
PJI Facilities \| London Interbank Offered Rate
Debt
Interest margin rate on debt			1.00%
Amendment to Credit Agreement
Debt
Incurred amendment fees		$ 2,100,000	$ 2,100,000
Amendment to Credit Agreement \| Minimum
Debt
Interest coverage ratio		2.00	2.00
Amendment to Credit Agreement \| Maximum
Debt
Leverage Ratio		5.25	5.25
Increase to maximum leverage ratio		0.50	0.50
PJMF Revolving Facility
Debt
Line of credit facility, maximum borrowing capacity		$ 20,000,000.0	$ 20,000,000.0
Outstanding debt		$ 0	$ 0	$ 0
Applicable interest rate		1.90%	2.70%
PJMF Revolving Facility \| One-month LIBOR
Debt
Interest margin rate on debt			1.75%
Notes
Debt
Principal amount	$ 400,000,000.0
Outstanding debt		$ 400,000,000.0	$ 400,000,000.0
Fixed interest rate	3.875%	3.875%	3.875%
Unamortized debt issuance costs	$ 7,100,000
Notes \| Redemption at any time prior to September 15, 2024
Debt
Redemption price percentage	100.00%
Notes \| Redemption upto 40% at any time prior to September 15,2024
Debt
Redemption price percentage	103.875%
Notes \| Minimum \| Redemptionat at any time on or after September 15, 2024
Debt
Redemption price percentage	0.97%
Notes \| Maximum \| Redemptionat at any time on or after September 15, 2024
Debt
Redemption price percentage	1.94%
Notes \| Maximum \| Redemption upto 40% at any time prior to September 15,2024
Debt
Redemption percentage	40
Swingline loans
Debt
Line of credit facility, maximum borrowing capacity		$ 40,000,000.0	$ 40,000,000.0
Letter of credit
Debt
Line of credit facility, maximum borrowing capacity		$ 80,000,000.0	$ 80,000,000.0