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Condensed Consolidated Statements of Shareholders' Investment Unaudited (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
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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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