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Multiemployer Plans, Collective-Bargaining Arrangement, Number of Collective Bargaining Arrangements

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- Definition

Multiemployer Plans, Gain (Loss) On Withdrawal Obligation

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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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Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan.

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Amount of cost for employer contribution to multiemployer pension plan determined to be individually insignificant.

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Amount of cost for employer contribution to multiemployer pension plan determined to be individually significant.

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Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

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No definition available.

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Pension Benefits - Schedule of Multiemployer Plans (Details) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 29, 2019 USD ($)	Sep. 29, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 27, 2020 USD ($) collectiveBargainingAgreement	Dec. 29, 2019 USD ($)	Dec. 30, 2018 USD ($) collectiveBargainingAgreement	Dec. 29, 2018 collectiveBargainingAgreement
Pension Benefits
Gain from pension liability adjustment	$ 0	$ 2,045	$ 0	$ 0	$ 4,900	$ 0	$ 2,045	$ 4,851
Pension Plan
Pension Benefits
Multiemployer plan, withdrawal obligation	$ 82,000					76,000	82,000
Contributions for individually significant plans						2,888	2,800	2,670
Contributions for a plan not individually significant						24	0	0
Total Contributions						2,912	2,800	2,670
Pension Plan \| CWA/ITU Negotiated Pension Plan
Pension Benefits
Contributions for individually significant plans						384	415	408
Pension Plan \| Newspaper and Mail Deliverers'-Publishers' Pension Fund
Pension Benefits
Contributions for individually significant plans						$ 1,010	1,014	992
Number of collective bargaining arrangements \| collectiveBargainingAgreement						2
Pension Plan \| GCIU-Employer Retirement Benefit Plan
Pension Benefits
Contributions for individually significant plans						$ 65	58	$ 42
Number of collective bargaining arrangements \| collectiveBargainingAgreement								1	2
Collective bargaining agreement, actuarial calculation, period for smoothing investment losses (in years)						10 years
Pension Plan \| Pressmen's Publishers' Pension Fund
Pension Benefits
Contributions for individually significant plans						$ 1,328	1,213	$ 1,129
Collective bargaining agreement, actuarial calculation, period for smoothing investment losses (in years)						10 years
Pension Plan \| Paper-Handlers' - Publishers' Pension Fund
Pension Benefits
Contributions for individually significant plans						$ 101	$ 100	$ 99
Collective bargaining agreement, actuarial calculation, period for smoothing investment losses (in years)						10 years