Condensed Consolidated Statements of Shareholders' Investment Unaudited (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Net income (loss) attributable to redeemable noncontrolling interest	$ 1,880	$ 377
Class A Non-Voting
Class of Stock [Line Items]
Cash dividends paid (in dollars per share)	$ 0.07	$ 0.07
Class B Voting
Class of Stock [Line Items]
Cash dividends paid (in dollars per share)	$ 0.05	$ 0.05

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
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