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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Consolidated Balance Sheets [Abstract]
Properties and equipment, at cost, accumulated depreciation	$ 373,912	$ 354,872
Identifiable intangible assets, accumulated amortization	$ 54,031	$ 48,965
Capital stock - authorized	80,000,000	80,000,000
Capital stock - par value	$ 1	$ 1
Capital stock - issued	37,312,834	37,183,681
Treasury stock	22,317,642	22,148,927

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Face amount or stated value per share of common stock.

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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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