Commitments and Contingencies Textuals (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 03, 2015	Apr. 23, 2015
New Hartford [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	$ 2,400
Accrual for Environmental Loss Contingencies, Payments	500
Bloomfield [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	4,600
Accrual for Environmental Loss Contingencies, Payments	10,000
Site Contingency, Accrual, Discount Amount	10,300
Site Contingency, Accrual, Undiscounted Amount	$ 20,800
Site Contingency, Accrual, Discount Rate	8.00%
Superfund Site [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	$ 0
Other accruals and payables [Member] | New Hartford [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	900
Other accruals and payables [Member] | Bloomfield [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	1,200
Other Long-Term Liabilities [Member] | Bloomfield [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	3,400
AH-1Z program [Member]
Loss Contingencies [Line Items]
Unasserted warranty claim		$ 24,000
Loss Contingency Accrual	0
Total program inventory, long-term contract	44,100
Backlog	$ 7,000