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Condensed Consolidated Statements of Shareholders' Investment Unaudited (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Class of Stock [Line Items]
Net loss (income) attributable to redeemable noncontrolling interest				$ 0	$ 257	$ 1,880
Class A Non-Voting
Class of Stock [Line Items]
Cash dividends paid (in dollars per share)	$ 0.06	$ 0.06	$ 0.06	$ 0.04	$ 0.03	$ 0.07
Class B Voting
Class of Stock [Line Items]
Cash dividends paid (in dollars per share)	$ 0.06	$ 0.06	$ 0.06	$ 0.04	$ 0.03	$ 0.05

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Aggregate dividends declared during the period for each share of common stock outstanding.

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-Name Accounting Standards Codification
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-SubTopic 10
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Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

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