Acquisitions (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	0 Months Ended	3 Months Ended
	Mar. 29, 2015	Dec. 01, 2014	Mar. 30, 2014	Jun. 28, 2015	Jun. 30, 2013	Dec. 31, 2014	Dec. 31, 2012
Acquisition
Purchase price allocated to goodwill	$ 612.0		$ 513.9			$ 639.0
Estimated useful lives	12 years 3 months 18 days
Value of the assets and liabilities acquired
Goodwill	612.0		513.9			639.0
Technology
Acquisition
Estimated useful lives	10 years 2 months 12 days
Customer relationships
Acquisition
Estimated useful lives	12 years
Trade name
Acquisition
Estimated useful lives	14 years 4 months 24 days
Aerco
Acquisition
Short term working capital escrow		7.7
Aggregate consideration, net		272.2
Purchase price allocated to goodwill		174.3
Purchase price allocated to intangible assets		102.4
Revenues	22.2
Operating Income (Loss)	1.2
Acquisition accounting charges	0.9
Goodwill deductible for tax purposes		19.4
Value of the assets and liabilities acquired
Accounts receivable		16.7
Inventory		16.4
Fixed assets		7.6
Deferred tax assets		8.0
Other assets		7.6
Intangible assets		102.4
Goodwill		174.3
Accounts payable		(6.7)
Accrued expenses and other		(18.1)
Deferred tax liability		(36.0)
Purchase price		272.2
Supplemental pro-forma information
Net income from continuing operations	12.3		13.3
Net interest expense related to the financing			0.7
Net amortization expense			1.1
Net acquisition-related charges and third-party costs	0.7
Basic EPS - continuing operations	$ 0.35		$ 0.38
Diluted EPS - continuing operations	$ 0.35		$ 0.38
Aerco | Technology
Acquisition
Purchase price allocated to intangible assets		15.8
Estimated useful lives		10 years
Value of the assets and liabilities acquired
Intangible assets		15.8
Aerco | Customer relationships
Acquisition
Purchase price allocated to intangible assets		78.5
Estimated useful lives		16 years
Value of the assets and liabilities acquired
Intangible assets		78.5
Aerco | Trade name
Acquisition
Purchase price allocated to intangible assets		7.4
Estimated useful lives		20 years
Value of the assets and liabilities acquired
Intangible assets		7.4
Tekmar
Acquisition
Contingent liability of the acquisition date fair value							5.1
Contingent consideration payment			$ 2.2	$ 2.3	$ 1.2