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Comprehensive Income (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Net earnings $ 6,152 $ 4,920 $ 10,491 $ 8,338
Foreign currency translation adjustments (182) 452 (1,292) 1,672
Pension liability, net of tax of $41, $52, $124 and $154, respectively 116 80 352 241
Total comprehensive income $ 6,086 $ 5,452 $ 9,551 $ 10,251