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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 25, 2017
Net income $ 8,122 $ 6,763
Other comprehensive income, net of tax:    
Foreign currency translation adjustments 3,854 4,046
Adjustments related to postretirement benefits (73) (69)
Change in unrealized gain/loss on investments (10) 1
Other comprehensive income, net of tax 3,771 3,978
Comprehensive income $ 11,893 $ 10,741