XML 60 R49.htm IDEA: XBRL DOCUMENT v3.10.0.1
Accumulated Other Comprehensive Income, Changes (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Changes in accumulated other comprehensive income [Roll Forward]        
Balance at beginning of period     $ 453,654  
Other comprehensive income before reclassifications $ 719   (2,990)  
Amounts reclassified from accumulated other comprehensive income (6)   (18)  
Total other comprehensive income (loss), net of tax 713 $ 1,496 (3,008) $ 7,037
Balance at end of period 474,052   474,052  
AOCI Attributable to Parent [Member]        
Changes in accumulated other comprehensive income [Roll Forward]        
Balance at beginning of period (7,830)   (4,109)  
Total other comprehensive income (loss), net of tax     (3,008)  
Balance at end of period (7,117)   (7,117)  
Foreign Currency Translation Adjustments [Member]        
Changes in accumulated other comprehensive income [Roll Forward]        
Balance at beginning of period (7,941)   (4,225)  
Other comprehensive income before reclassifications 719   (2,997)  
Amounts reclassified from accumulated other comprehensive income 0   0  
Total other comprehensive income (loss), net of tax 719   (2,997)  
Balance at end of period (7,222)   (7,222)  
Unrecognized Postretirement Benefit Costs (Credit) [Member]        
Changes in accumulated other comprehensive income [Roll Forward]        
Balance at beginning of period 111   116  
Other comprehensive income before reclassifications 0   7  
Amounts reclassified from accumulated other comprehensive income (6)   (18)  
Total other comprehensive income (loss), net of tax (6)   (11)  
Balance at end of period $ 105   $ 105