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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Number of Common Shares outstanding
Treasury Shares
Additional Paid-In Capital
Retained earnings (accumulated deficit)
Accumulated other comprehensive loss
Noncontrolling interest
Total
Balance at Dec. 31, 2015   $ (4,208) $ 199,254 $ (32,105) $ (69,822) $ 13,310 $ 106,429
Common Stock, Shares, Outstanding, Beginning Balance at Dec. 31, 2015 27,912            
Treasury Stock, Shares, Beginning Balance at Dec. 31, 2015   995          
Net income (loss)       77,461   (1,887) 75,574
Benefit plan liability adjustments, net         (84)   (84)
Unrealized gain (loss) on derivatives         (408)   (408) [1]
Currency translation adjustments         2,401 2,339 4,740
Issuance of restricted Common Shares ( in shares) 67 (8)          
Forfeited restricted Common Shares ( in shares) (3) 3          
Repurchased Common Shares for treasury   $ (1,424)         (1,424)
Repurchased Common Shares for treasury (in shares) (126) 126          
Tax benefit from share based compensation transactions     977       977
Share-based compensation     6,273       6,273
Balance at Dec. 31, 2016   $ (5,632) 206,504 45,356 (67,913) 13,762 192,077
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2016 27,850            
Treasury Stock, Shares, Ending Balance at Dec. 31, 2016   1,116          
Net income (loss)       45,179   (130) 45,049
Unrealized gain (loss) on derivatives         (125)   (125) [1]
Currency translation adjustments         15,473 826 16,299
Acquisition of noncontrolling interest, net     15,820   (16,995) $ (14,458) (15,633)
Issuance of restricted Common Shares ( in shares) 462 (462)          
Repurchased Common Shares for treasury   $ (1,486)         (1,486)
Repurchased Common Shares for treasury (in shares) (132) 132          
Share-based compensation     6,162       6,162
Balance at Dec. 31, 2017   $ (7,118) 228,486 92,264 (69,560)   $ 244,072
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2017 28,180           28,180
Treasury Stock, Shares, Ending Balance at Dec. 31, 2017   786         786
Cumulative effect of a accounting change | ASU 2016-09       1,729     $ 1,729
Net income (loss)       53,848     53,848
Unrealized gain (loss) on derivatives         435   435 [1]
Currency translation adjustments         (16,627)   (16,627)
Issuance of restricted Common Shares ( in shares) 461 (461)          
Repurchased Common Shares for treasury   $ (1,762)         (1,762)
Repurchased Common Shares for treasury (in shares) (153) 153          
Share-based compensation     3,161       3,161
Balance at Dec. 31, 2018   $ (8,880) $ 231,647 146,251 $ (85,752)   $ 283,266
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2018 28,488           28,488
Treasury Stock, Shares, Ending Balance at Dec. 31, 2018   478         478
Cumulative effect of a accounting change       $ 139     $ 139
[1] Net of tax expense (benefit) of $156, $(68) and $(10) for the years ended December 31, 2018, 2017 and 2016, respectively.