Acquisitions (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended				3 Months Ended	6 Months Ended	12 Months Ended		6 Months Ended			6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Apr. 30, 2014	Dec. 31, 2013	Jun. 28, 2014 ATMI [Member]	Jun. 28, 2014 ATMI [Member]	Dec. 31, 2013 ATMI [Member]	Apr. 30, 2014 ATMI [Member]	Jun. 28, 2014 Jetalon [Member]	Jun. 29, 2013 Jetalon [Member]	Apr. 01, 2013 Jetalon [Member]	Jun. 28, 2014 Customer Relationships [Member] ATMI [Member]	Jun. 28, 2014 Trademarks and Trade Names [Member] ATMI [Member]	Jun. 28, 2014 Other Intangible Assets [Member]	Jun. 28, 2014 Other Intangible Assets [Member] ATMI [Member]	Jun. 28, 2014 Noncompete Agreements [Member]	Jun. 28, 2014 Senior secured term loan [Member]	Apr. 30, 2014 Senior secured term loan [Member] ATMI [Member]	Jun. 28, 2014 Senior unsecured notes [Member]	Apr. 01, 2014 Senior unsecured notes [Member] ATMI [Member]
Acquisitions [Line Items]
Identifiable intangible assets										$ 296,726			$ 5,634
Acquisition date								Apr. 30, 2014				Apr. 01, 2013
Sale of Stock, Price Per Share										$ 34
Inventory fair value step-up	24,300		24,300			0				48,586
Charge for fair value write-up of acquired inventory sold	24,293	0	24,293	0				24,293
Finite-lived Intangible Assets Acquired														160,800	120,800		15,100	7,517
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life								8 years 2 months				10 years		10 years	6 years	8 years		1 year 7 months
Goodwill	328,431		328,431			12,274				316,102			10,090
Payments to Acquire Businesses, Net of Cash Acquired			808,940	13,358								13,358
Contingent Consideration Arrangements, Range of Outcomes, Value, High													14,500
Payments to Acquire Businesses, Gross								1,130,034
Direct costs associated with the transaction							12,007	13,288
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period									361,000
Contingent consideration obligation													3,094
Total purchase price, net of cash acquired										808,940			16,452
Contingent consideration fair value adjustment	(1,282)	0	(1,282)	0							1,282
Pre-combination payment of unvested portion of awards								21,300
Long-term Debt	$ 817,700		$ 817,700		$ 820,000														$ 457,700	$ 460,000	$ 360,000	$ 360,000