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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
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Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Mar. 31, 2020
Statement of Stockholders' Equity [Abstract] |  |  |  |
Total other comprehensive income, deferred income taxes | $ 34 | $ 134 | $ (1,229) | $ (5,267)
Vesting of restricted stock units and other stock grants (in shares) | 34,986 | 144,967 | 14,211 | 104,840
Stock appreciation rights exercised (in shares) | 13,061 | 3,842 | 6,744 |
Stock Issued During Period, Shares, Other |  | 69,127 |  | 265,151

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