Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Acquisitions - 2016, Consideration (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 17, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Acquisitions
Cash Consideration		$ 191.6	$ 66.3	$ 24.3
2016 Acquisitions
Acquisitions
Consideration			31.4
Cash Consideration			24.3
Oxford Instruments Superconducting Wire LLC
Acquisitions
Consideration	$ 15.9
Cash Consideration	$ 15.9
Other
Acquisitions
Consideration			11.5	15.5
Cash Consideration			$ 11.2	$ 8.4