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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
Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained earnings
Accumulated other comprehensive loss
Cumulative Effect, Period of Adoption, Adjustment [Member]
Total
Balance (ASU 2016-09) at Dec. 31, 2017       $ 139     $ 139  
Balance at Dec. 31, 2017   $ (7,118) $ 228,486   $ 92,264 $ (69,560)   $ 244,072
Common Stock, Share, Beginning Balance (in shares) at Dec. 31, 2017 28,180              
Treasury Stock, Shares, Beginning Balance at Dec. 31, 2017   786            
Net income (loss)         53,848     53,848
Unrealized gain (loss) on derivatives, net           435   435
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, Share, Ending Balance (in shares) at Dec. 31, 2018 28,488              
Treasury Stock, Shares, Ending Balance at Dec. 31, 2018   478            
Net income (loss)         60,291     60,291
Unrealized gain (loss) on derivatives, net           (292)   (292)
Currency translation adjustments           (5,428)   (5,428)
Issuance of Common Shares ( in shares) 407              
Issuance of Common Shares ( in treasury shares)   (407)            
Repurchased Common Shares for treasury, net   $ (1,893)           (1,893)
Repurchased Common Shares for treasury (in shares) (137)              
Repurchased Common Shares for treasury (in treasury shares)   137            
Common Share repurchase program   $ (40,000) (10,000)         (50,000)
Common Share repurchase program (in shares) (1,350)              
Common Share repurchase program (in treasury shares)   1,350            
Share-based compensation     3,960         3,960
Balance (ASU 2019-12 [Member]) at Dec. 31, 2019       $ 13,750     $ 13,750  
Balance at Dec. 31, 2019   $ (50,773) 225,607   206,542 (91,472)   $ 289,904
Common Stock, Share, Ending Balance (in shares) at Dec. 31, 2019 27,408             27,408
Treasury Stock, Shares, Ending Balance at Dec. 31, 2019   1,558           1,558
Net income (loss)         (7,950)     $ (7,950)
Unrealized gain (loss) on derivatives, net           (840)   (840)
Currency translation adjustments           2,677   2,677
Issuance of Common Shares ( in shares) 285              
Issuance of Common Shares ( in treasury shares)   (285)            
Repurchased Common Shares for treasury, net   $ 5,286           5,286
Repurchased Common Shares for treasury (in shares) (80)              
Repurchased Common Shares for treasury (in treasury shares)   80            
Common Share repurchase program $ (607) $ (14,995) 10,000         (4,995)
Common Share repurchase program (in shares)   607            
Share-based compensation     (1,198)         (1,198)
Balance at Dec. 31, 2020   $ (60,482) $ 234,409   $ 212,342 $ (89,635)   $ 296,634
Common Stock, Share, Ending Balance (in shares) at Dec. 31, 2020 27,006             27,006
Treasury Stock, Shares, Ending Balance at Dec. 31, 2020   1,960           1,960