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Supplementary Data Share Repurchase Program (Tables)	12 Months Ended
	Dec. 31, 2019
Share Repurchase Program [Abstract]
Share Repurchase Program [Table Text Block]

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- Definition

Share repurchase program to repurchase common stock through open market purchases, trading plans established in accordance with SEC rules, derivative transaction or other means. The repurchase program has no expiration date.

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- Definition

[Table Text Block] for Share Repurchase Program [Table]

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