Taxes on Income, Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets [Abstract]
Allowance for doubtful accounts	$ 1,657,000	$ 1,793,000
Inventory	13,180,000	13,496,000
Insurance accruals	4,052,000	4,864,000
Deferred compensation	6,081,000	6,040,000
Unrealized loss on defined benefit plans	6,126,000	15,929,000
Goodwill and other intangibles	65,852,000	44,487,000
Operating loss carryforwards	89,966,000	82,186,000
Retirement benefits	7,194,000	7,444,000
Other	6,247,000	5,480,000
Deferred tax assets, gross	200,355,000	181,719,000
Valuation allowances	(20,095,000)	(18,025,000)
Deferred tax assets, net of valuation allowance	180,260,000	163,694,000
Deferred tax liabilities [Abstract]
Property	(655,550,000)	(678,916,000)
Deferred state taxes	(83,491,000)	(74,468,000)
Other	(15,371,000)	(17,154,000)
Deferred tax liabilities	(754,412,000)	(770,538,000)
Net deferred tax liabilities	(574,152,000)	(606,844,000)
Operating Loss Carryforward [Abstract]
Deferred tax assets	57,168,000
State operating loss deferred tax assets	27,607,000	23,482,000
Operating loss carryforwards, net of valuation allowance	14,904,000	$ 12,819,000
Unrecognized tax benefits including interest and penalties	893,000
Amount that would impact the effective tax rate, if recognized	$ 720,000
Maximum [Member]
Operating Loss Carryforward [Abstract]
Expiration dates, operating loss carryforwards	Dec. 31, 2041
Minimum [Member]
Operating Loss Carryforward [Abstract]
Expiration dates, operating loss carryforwards	Dec. 31, 2037
Canada [Member]
Operating Loss Carryforward [Abstract]
Operating loss carryforwards	$ 5,191,000
Expiration dates, operating loss carryforwards	Dec. 31, 2028
Internal Revenue Service (IRS) [Member]
Open Tax Year [Abstract]
Years open to audit under the statute of limitations	2017 2018 2019
State and Local Jurisdiction [Member]
Open Tax Year [Abstract]
Years open to audit under the statute of limitations	2015 2016 2017 2018 2019 2020

Deferred tax assets tax deferred expense of non current unrealized loss on defined benefit plans.

No definition available.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences from deferred state taxes.

+ References

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- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards federal for which it is more likely than not that a tax benefit will be realized.

+ References

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- Definition

This element represents the total of unrecognized tax benefits including interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties in the period in which the entity claims or expects to claim a tax position, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

+ References

No definition available.

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Amount of deferred tax liability attributable to taxable temporary differences.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

+ References

No definition available.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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- Definition

Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from state taxes.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.

+ References

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from pension benefits.

+ References

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- Definition

Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on accounts receivable.

+ References

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from estimated losses under self insurance.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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- Definition

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Amount of deferred tax liability attributable to taxable temporary differences classified as other.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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- Definition

Tax year that remains open to examination under enacted tax laws, in YYYY format.

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Expiration date of each operating loss carryforward included in operating loss carryforward, in YYYY-MM-DD format.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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