A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount after tax of other comprehensive income (loss) attributable to parent entity.

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- Definition

Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.

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- Definition

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss).

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- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (18,248)	$ (12,835)	$ (26,083)	$ (14,663)
Other comprehensive income, net of tax	289	(1,850)	602	(2,028)
Ending balance	38,213	(20,571)	38,213	(20,571)
Reclassification of actuarial loss			800
Reclassification of actuarial loss, tax			200
Foreign currency, net of tax
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance			666
Other comprehensive income, net of tax			8
Ending balance	674		674
Defined benefit pension plan, net of tax
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance			(35,441)
Other comprehensive income, net of tax			604
Ending balance	(34,837)		(34,837)
Other, net of tax
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance			212
Other comprehensive income, net of tax			(10)
Ending balance	202		202
Total Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(34,250)	(37,307)	(34,563)	(37,129)
Ending balance	$ (33,961)	$ (39,157)	$ (33,961)	$ (39,157)