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Reportable Segments - Segment Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information
Sales to external customers	$ 321.1	$ 289.3
Depreciation and amortization expense	23.9	16.0
Operating income (loss)	23.5	4.6
Capital expenditures	10.3	5.9
Restructuring costs	5.2	7.4
Cryobiological storage
Segment Reporting Information
Sales to external customers	19.3	20.3
Operating Segments | D&S East
Segment Reporting Information
Sales to external customers	70.0	68.7
Depreciation and amortization expense	3.6	4.2
Operating income (loss)	6.9	(2.3)
Capital expenditures	5.1	1.0
Restructuring costs	1.0	2.4
Operating Segments | D&S East | Cryobiological storage
Segment Reporting Information
Sales to external customers	0.2	0.0
Operating Segments | D&S West
Segment Reporting Information
Sales to external customers	111.6	118.0
Depreciation and amortization expense	3.0	2.9
Operating income (loss)	26.5	25.6
Capital expenditures	1.7	1.2
Restructuring costs	0.8	0.3
Operating Segments | D&S West | Cryobiological storage
Segment Reporting Information
Sales to external customers	19.2	22.0
Operating Segments | E&C Cryogenics
Segment Reporting Information
Sales to external customers	62.2	35.1
Depreciation and amortization expense	3.8	4.5
Operating income (loss)	8.7	(10.7)
Capital expenditures	1.0	2.7
Restructuring costs	0.4	3.4
Operating Segments | E&C Cryogenics | Cryobiological storage
Segment Reporting Information
Sales to external customers	0.0	0.0
Operating Segments | E&C FinFans
Segment Reporting Information
Sales to external customers	80.7	70.5
Depreciation and amortization expense	13.1	4.1
Operating income (loss)	1.1	9.4
Capital expenditures	0.5	0.5
Restructuring costs	2.4	1.1
Operating Segments | E&C FinFans | Cryobiological storage
Segment Reporting Information
Sales to external customers	0.0	0.0
Intersegment Eliminations
Segment Reporting Information
Sales to external customers	(3.4)	(3.0)
Depreciation and amortization expense	0.0	0.0
Operating income (loss)	0.0	(1.1)
Capital expenditures	0.0	0.0
Intersegment Eliminations | Cryobiological storage
Segment Reporting Information
Sales to external customers	(0.1)	(1.7)
Corporate
Segment Reporting Information
Sales to external customers	0.0	0.0
Depreciation and amortization expense	0.4	0.3
Operating income (loss)	(19.7)	(16.3)
Capital expenditures	2.0	0.5
Restructuring costs	$ 0.6	0.2
Acquisition related costs		$ 0.9

X

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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