Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Significant Accounting Policies [Line Items]
Allowance for doubtful accounts	$ 8,800	$ 9,100
LIFO Inventory Amount	$ 35,600	$ 30,200
Percentage of LIFO Inventory	10.10%	11.80%
Depreciation	$ 25,500	$ 15,500	$ 13,500
Finite-Lived Intangible Assets, Amortization Expense	27,400	24,600	28,500
Foreign Currency Transaction Gain (Loss), before Tax	6,800	3,600	(3,100)
Costs in Excess of Billings on Uncompleted Contracts or Programs	13,000	12,700
Research and Development Expense	22,400	22,600	21,400
Share-based Compensation	15,864	16,690	11,862
Tax benefit	6,000	$ 4,600	$ 4,400
Total unrecognized compensation	$ 9,300
Weighted average life	292 days
Weighted average number diluted shares outstanding (shares)	22,000	20,000	317,000
Interest Paid	$ 14,800	$ 14,800	$ 14,100
Income Taxes Paid	$ 94,600	$ 43,500	49,500
Restricted Stock [Member]
Significant Accounting Policies [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	100,704	369,807
Fair value of grants issued during the period	$ 10,900	$ 32,500	$ 0
Grant awards issued (shares)	100,704	369,807
Grant awards, fair value per share at date of grant (usd per share)	$ 107.81	$ 87.80