Condensed Consolidated Statements of Changes in Equity (Unaudited) (Parenthetical)	3 Months Ended
Mar. 31, 2019 $ / shares shares
Common Stock
Cash dividend per share (in dollars per share)	$ 0.25
Class B Common Stock
Cash dividend per share (in dollars per share)	$ 0.25
Class B common stock shares issued (in shares) \| shares	19,224

Number of new stock issued during the period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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