Commitments and Contingencies	3 Months Ended
Mar. 27, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	Commitments and Contingencies Derivatives and Purchase Commitments In order to hedge exposure related to fluctuations in foreign currency rates and the cost of certain commodities used in the manufacture of our products, we periodically may purchase derivative financial instruments such as forward contracts, options or collars to offset or mitigate the impact of such fluctuations. Programs to hedge currency rate exposure may address ongoing transactions including foreign-currency-denominated receivables and payables, as well as specific transactions related to purchase obligations. Programs to hedge exposure to commodity cost fluctuations would be based on underlying physical consumption of such commodities. Historically, we have not actively engaged in substantial exchange rate hedging activities and, prior to 2014, we had not entered into any significant foreign exchange contracts. However, as a result of customer requirements, a significant shift is occurring in the currency denominated in our contracts with our customers. As a result of this change, the vast majority of our revenues in 2016 and beyond will be denominated in the U.S. dollar, rather than a more balanced mix of U.S. dollar and Mexican peso. In the past, we have relied upon significant revenues denominated in the Mexican peso to provide a "natural hedge" against foreign exchange rate changes impacting our peso-denominated costs incurred at our facilities in Mexico. Accordingly, the foreign exchange exposure associated with peso-denominated costs is a growing risk that could have a material adverse effect on our operating results. In accordance with our corporate risk management policies, we may enter into foreign currency forward and option contracts with financial institutions to protect against foreign exchange risks associated with certain existing assets and liabilities, certain firmly committed transactions and forecasted future cash flows. We have implemented a program to hedge a portion of our material foreign exchange exposures for up to approximately 33 months. We do not use derivative contracts for trading, market-making, or speculative purposes. For additional information on our derivatives, see Note 5 - Derivative Financial Instruments. When market conditions warrant, we may also enter into purchase commitments to secure the supply of certain commodities used in the manufacture of our products, such as aluminum, natural gas and other raw materials. We had several purchase commitments in place for the delivery of natural gas through 2015. These natural gas contracts are considered to be derivatives under U.S. GAAP, and when entering into these contracts, it was expected that we would take full delivery of the contracted quantities of natural gas over the normal course of business. Accordingly, at inception, these contracts qualified for the normal purchase, normal sale ("NPNS") exemption provided for under U.S. GAAP. As such, we do not account for these purchase commitments as derivatives unless there is a change in facts or circumstances in regard to the company's intent or ability to use the contracted quantities of natural gas over the normal course of business. Other We are party to various legal and environmental proceedings incidental to our business. Certain claims, suits and complaints arising in the ordinary course of business have been filed or are pending against us. Based on facts now known, we believe all such matters are adequately provided for, covered by insurance, are without merit and/or involve such amounts that would not materially adversely affect our consolidated results of operations, cash flows or financial position. For additional information concerning contingencies, risks and uncertainties, see Note 20 – Risk Management.

Commitments and Contingencies

Derivatives and Purchase Commitments

In order to hedge exposure related to fluctuations in foreign currency rates and the cost of certain commodities used in the manufacture of our products, we periodically may purchase derivative financial instruments such as forward contracts, options or collars to offset or mitigate the impact of such fluctuations. Programs to hedge currency rate exposure may address ongoing transactions including foreign-currency-denominated receivables and payables, as well as specific transactions related to purchase obligations. Programs to hedge exposure to commodity cost fluctuations would be based on underlying physical consumption of such commodities.

Historically, we have not actively engaged in substantial exchange rate hedging activities and, prior to 2014, we had not entered into any significant foreign exchange contracts. However, as a result of customer requirements, a significant shift is occurring in the currency denominated in our contracts with our customers. As a result of this change, the vast majority of our revenues in 2016 and beyond will be denominated in the U.S. dollar, rather than a more balanced mix of U.S. dollar and Mexican peso. In the past, we have relied upon significant revenues denominated in the Mexican peso to provide a "natural hedge" against foreign exchange rate changes impacting our peso-denominated costs incurred at our facilities in Mexico. Accordingly, the foreign exchange exposure associated with peso-denominated costs is a growing risk that could have a material adverse effect on our operating results.

In accordance with our corporate risk management policies, we may enter into foreign currency forward and option contracts with financial institutions to protect against foreign exchange risks associated with certain existing assets and liabilities, certain firmly committed transactions and forecasted future cash flows. We have implemented a program to hedge a portion of our material foreign exchange exposures for up to approximately 33 months. We do not use derivative contracts for trading, market-making, or speculative purposes. For additional information on our derivatives, see Note 5 - Derivative Financial Instruments.

When market conditions warrant, we may also enter into purchase commitments to secure the supply of certain commodities used in the manufacture of our products, such as aluminum, natural gas and other raw materials. We had several purchase commitments in place for the delivery of natural gas through 2015. These natural gas contracts are considered to be derivatives under U.S. GAAP, and when entering into these contracts, it was expected that we would take full delivery of the contracted quantities of natural gas over the normal course of business. Accordingly, at inception, these contracts qualified for the normal purchase, normal sale ("NPNS") exemption provided for under U.S. GAAP. As such, we do not account for these purchase commitments as derivatives unless there is a change in facts or circumstances in regard to the company's intent or ability to use the contracted quantities of natural gas over the normal course of business.

Other

We are party to various legal and environmental proceedings incidental to our business. Certain claims, suits and complaints arising in the ordinary course of business have been filed or are pending against us. Based on facts now known, we believe all such matters are adequately provided for, covered by insurance, are without merit and/or involve such amounts that would not materially adversely affect our consolidated results of operations, cash flows or financial position. For additional information concerning contingencies, risks and uncertainties, see Note 20 – Risk Management.