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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016
Statement of Stockholders' Equity [Abstract] |  |
Other Comprehensive Income (Loss), Tax | $ 1,671 | $ (9,393)
Vesting of restricted stock units and other (in shares) | 236,335 | 80,598
Stock Appreciation Rights exercise, net 7,441 shares | 7,441 | 0

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