Benefit Plans - Funded Status of Plans (Details) - USD ($) $ in Thousands	Dec. 26, 2020	Dec. 28, 2019
Retirement Benefits [Abstract]
Projected benefit obligation	$ 148,992	$ 81,362
Fair value of plan assets	100,439	42,058
Accumulated benefit obligation	130,453	75,744
Fair value of plan assets	$ 92,248	$ 42,058

No definition available.

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- Definition

Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

+ References

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Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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- Definition

Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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