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Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies
Checks outstanding	$ 7,300,000
LIFO inventory amount	196,500,000	$ 195,600,000
Inventory, LIFO reserve	64,051,000	95,167,000
Inventories valued at FIFO	15,900,000	16,200,000
Goodwill	56,192,000	56,192,000
Research and development expense	8,800,000	9,800,000	$ 12,500,000
Interest and penalties	0	0	$ 0
Unrecognized tax benefits	$ 0	0
Minimum
Accounting Policies
Useful life	5 years
Maximum
Accounting Policies
Useful life	20 years
Buildings and improvements | Minimum
Accounting Policies
Property, plant, equipment useful life (in years)	10 years
Buildings and improvements | Maximum
Accounting Policies
Property, plant, equipment useful life (in years)	40 years
Machinery and equipment | Minimum
Accounting Policies
Property, plant, equipment useful life (in years)	3 years
Machinery and equipment | Maximum
Accounting Policies
Property, plant, equipment useful life (in years)	35 years
Assets used in short production cycles or subject to high corrosion | Minimum
Accounting Policies
Property, plant, equipment useful life (in years)	3 years
Assets used in short production cycles or subject to high corrosion | Maximum
Accounting Policies
Property, plant, equipment useful life (in years)	30 years
Standard plant assets | Minimum
Accounting Policies
Property, plant, equipment useful life (in years)	3 years
Standard plant assets | Maximum
Accounting Policies
Property, plant, equipment useful life (in years)	30 years
Major process equipment | Minimum
Accounting Policies
Property, plant, equipment useful life (in years)	3 years
Major process equipment | Maximum
Accounting Policies
Property, plant, equipment useful life (in years)	35 years
Forward Commodity Agreement
Accounting Policies
Notional amount	$ 0	$ 0

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