Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended			3 Months Ended			12 Months Ended					3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 30, 2014 Thermax and Raydex [Member]	Mar. 31, 2012 Thermax and Raydex [Member]	Mar. 31, 2010 Trapeze [Member]	Dec. 31, 2013 Trapeze [Member]	Mar. 30, 2014 Trapeze [Member]	Mar. 30, 2014 Standby letters of credit [Member]	Mar. 30, 2014 Bank guaranties [Member]	Mar. 30, 2014 Surety bonds [Member]	Mar. 30, 2014 Fiscal Second Quarter [Member]	Mar. 30, 2014 Fiscal Third Quarter [Member]
Loss Contingencies [Line Items]
Reporting period	89 days	90 days										91 days	91 days
Guideline used to determine the end date of first quarter	91 days
Fair value measurements, transfers between Level 1 and Level 2	$ 0
Original maturity period of cash and cash equivalents	Three months or less
Fair value of cash and cash equivalents based on quoted market prices in active markets Level 1 valuation	204,000,000
Standby letters of credit, bank guaranties and surety bonds									6,900,000	4,800,000	1,700,000
Cash proceeds from the sales of discontinued operations					265,600,000	136,900,000
Gain/(Loss) on disposal of discontinued operations, before tax				(900,000)	211,600,000	88,300,000
Gain/(Loss) on disposal of discontinued operations, net of tax	(562,000)			(600,000)	124,700,000	44,800,000
Sale price for business						152,100,000
Amount in escrow as partial security for Company's indemnity obligations under transaction's purchase and sale agreement						15,200,000
Receivable, net	313,603,000		304,204,000					3,800,000
Partial settlement received from escrow							$ 4,200,000