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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($)
$ in Thousands
Total
Common stock [Member]
Additional paid-in capital [Member]
Retained earnings [Member]
Accumulated other comprehensive income (loss) [Member]
Treasury stock [Member]
Noncontrolling interest [Member]
Balance at Dec. 31, 2014     $ 60,200 $ 374,121 $ (15,823)   $ 116,659
Net income $ 13,305     10,007     3,298
Foreign currency translation adjustment, net of tax         (34,793)   (13,075)
Net derivative instrument loss, net of tax         (443)   (165)
Shares issued upon exercise of stock options     82        
Stock-based compensation     194        
Sale of subsidiary shares to noncontrolling interest     (6)       104
Dividends       (4,028)      
Balance at Mar. 31, 2015 459,899 $ 31 60,470 380,100 (51,059) $ (36,464) 106,821
Balance at Dec. 31, 2015 476,387   62,030 388,434 (48,091)   110,800
Net income 9,448     7,334     2,114
Foreign currency translation adjustment, net of tax         13,643   5,249
Net derivative instrument loss, net of tax         0   0
Shares issued upon exercise of stock options     132        
Stock-based compensation     212        
Sale of subsidiary shares to noncontrolling interest     (13)       156
Dividends       (4,656)      
Balance at Mar. 31, 2016 $ 500,558 $ 31 $ 62,361 $ 391,112 $ (34,448) $ (36,817) $ 118,319