Accumulated Other Comprehensive Earnings (Loss) - Reclassification from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other income, net	$ 35	$ (473)
Product cost of goods sold	65,824	67,145
Selling, marketing and administrative expenses	24,053	25,984
Tax expense (benefit)	4,325	4,334
Net earnings	(9,856)	(9,103)
Reclassified from Accumulated OCI into Earnings
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Total before tax	206	312
Tax expense (benefit)	(74)	(114)
Net earnings	132	198
AOCI from Derivatives | Foreign currency forward contracts | Reclassified from Accumulated OCI into Earnings
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other income, net	606	513
AOCI from Derivatives | Commodity futures contracts | Reclassified from Accumulated OCI into Earnings
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Product cost of goods sold	7	162
Investments | Reclassified from Accumulated OCI into Earnings
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other income, net	4
Postretirement and Pension Benefits | Reclassified from Accumulated OCI into Earnings
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Product cost of goods sold	(201)	(178)
Selling, marketing and administrative expenses	$ (210)	$ (185)