CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares shares in Thousands	Dec. 31, 2019	Dec. 31, 2018
Shareholders' equity:
Common stock, par value (per share)	$ 1.00	$ 1.00
Common stock, shares authorized	500,000	500,000
Common stock, shares outstanding	42,126	44,647

Face amount or stated value per share of common stock.

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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