v2.4.0.6
Equity (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Balance, December 31, 2012     $ 181,389  
Net earnings 5,601 5,452 10,991 12,059
Balance, September 30, 2013 187,884   187,884  
Common Stock [Member]
       
Balance, December 31, 2012     10,831  
Net earnings     0  
Foreign currency translation adjustments     0  
Pension liability adjustment, net of tax     0  
Cash dividends declared     0  
Cash dividends declared to noncontrolling interest     0  
Stock options exercised     201  
Stock-based compensation expense     0  
Income tax benefit from stock options exercised     0  
Shares purchased and retired     (195)  
Balance, September 30, 2013 10,837   10,837  
Capital in Excess of Par Value [Member]
       
Balance, December 31, 2012     26,184  
Net earnings     0  
Foreign currency translation adjustments     0  
Pension liability adjustment, net of tax     0  
Cash dividends declared     0  
Cash dividends declared to noncontrolling interest     0  
Stock options exercised     3,357  
Stock-based compensation expense     948  
Income tax benefit from stock options exercised     514  
Shares purchased and retired     0  
Balance, September 30, 2013 31,003   31,003  
Reinvested Earnings [Member]
       
Balance, December 31, 2012     149,664  
Net earnings     10,797  
Foreign currency translation adjustments     0  
Pension liability adjustment, net of tax     0  
Cash dividends declared     (3,896)  
Cash dividends declared to noncontrolling interest     0  
Stock options exercised     0  
Stock-based compensation expense     0  
Income tax benefit from stock options exercised     0  
Shares purchased and retired     (4,428)  
Balance, September 30, 2013 152,137   152,137  
Accumulated Other Comprehensive Income (Loss) [Member]
       
Balance, December 31, 2012     (12,514)  
Net earnings     0  
Foreign currency translation adjustments     (951)  
Pension liability adjustment, net of tax     770  
Cash dividends declared     0  
Cash dividends declared to noncontrolling interest     0  
Stock options exercised     0  
Stock-based compensation expense     0  
Income tax benefit from stock options exercised     0  
Shares purchased and retired     0  
Balance, September 30, 2013 (12,695)   (12,695)  
Noncontrolling Interest [Member]
       
Balance, December 31, 2012     7,224  
Net earnings     194  
Foreign currency translation adjustments     (606)  
Pension liability adjustment, net of tax     0  
Cash dividends declared     0  
Cash dividends declared to noncontrolling interest     (210)  
Stock options exercised     0  
Stock-based compensation expense     0  
Income tax benefit from stock options exercised     0  
Shares purchased and retired     0  
Balance, September 30, 2013 $ 6,602   $ 6,602