Inventories (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventory, Net [Abstract]
Finished goods	$ 25,199	$ 15,251
Work-in-process	11,955	9,098
Raw materials	32,958	25,913
Stores, supplies and other	18,457	16,175
Total	$ 88,569	$ 66,437

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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