Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	6 Months Ended			12 Months Ended			6 Months Ended	12 Months Ended	6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2013 Trapeze [Member]	Dec. 31, 2010 Trapeze [Member]	Jun. 29, 2014 Trapeze [Member]	Jun. 29, 2014 Thermax and Raydex [Member]	Dec. 31, 2012 Thermax and Raydex [Member]	Jun. 29, 2014 First Quarter Fiscal Year Two Thousand Fourteen [Member]	Jun. 29, 2014 Fiscal Second Quarter [Member]	Jun. 29, 2014 Fiscal Third Quarter [Member]	Jun. 29, 2014 Standby letters of credit [Member]	Jun. 29, 2014 Bank guaranties [Member]	Jun. 29, 2014 Surety bonds [Member]
Loss Contingencies [Line Items]
Reporting period	180 days	181 days							89 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	$ 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	162,800,000
Standby letters of credit, bank guaranties and surety bonds												7,500,000	2,300,000	1,700,000
Cash proceeds from the sales of discontinued operations					136,900,000			265,600,000
Gain/(Loss) on disposal of discontinued operations, before tax					88,300,000		(900,000)	211,600,000
Gain/(Loss) on disposal of discontinued operations, net of tax	(562,000)				44,800,000		(600,000)	124,700,000
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
Receivables, net	416,998,000		304,204,000			3,800,000
Partial settlement received from escrow				$ 4,200,000