Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 27, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Investment Assets	$ 2,719	$ 3,391
Foreign Currency Forward Contract	175	188
Precious Metal Swaps	0	35
Copper Swaps	0	61
Total Financial Assets	2,894	3,675
Deferred Compensation Investment Related Liability	2,719	3,391
Foreign Currency Forward Contract	438	211
Precious Metal Swaps	1,093	623
Copper Swaps	424	28
Total Financial Liabilities	4,674	4,253
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Investment Assets	2,719	3,391
Foreign Currency Forward Contract	0	0
Precious Metal Swaps	0	0
Copper Swaps	0	0
Total Financial Assets	2,719	3,391
Deferred Compensation Investment Related Liability	2,719	3,391
Foreign Currency Forward Contract	0	0
Precious Metal Swaps	0	0
Copper Swaps	0	0
Total Financial Liabilities	2,719	3,391
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Investment Assets	0	0
Foreign Currency Forward Contract	175	188
Precious Metal Swaps	0	35
Copper Swaps	0	61
Total Financial Assets	175	284
Deferred Compensation Investment Related Liability	0	0
Foreign Currency Forward Contract	438	211
Precious Metal Swaps	1,093	623
Copper Swaps	424	28
Total Financial Liabilities	1,955	862
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Investment Assets	0	0
Foreign Currency Forward Contract	0	0
Precious Metal Swaps	0	0
Copper Swaps	0	0
Total Financial Assets	0	0
Deferred Compensation Investment Related Liability	0	0
Foreign Currency Forward Contract	0	0
Precious Metal Swaps	0	0
Copper Swaps	0	0
Total Financial Liabilities	$ 0	$ 0