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Business Segment, Geographic Area, and Significant Customer Information - Schedule of Capital Expenditures, Depreciation and Amortization Expense of Intangible Assets by Reportable Segment (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Capital expenditures: |  |  |  |
Capital expenditures | $ 16.3 | $ 20.9 | $ 42.8 | $ 30.9
Depreciation and amortization: |  |  |  |
Depreciation and amortization | 24.9 | 24.1 | 48.7 | 52.5
Vacuum & Analysis [Member] |  |  |  |
Capital expenditures: |  |  |  |
Capital expenditures | 7.8 | 15.0 | 16.4 | 19.1
Depreciation and amortization: |  |  |  |
Depreciation and amortization | 6.4 | 5.1 | 12.2 | 10.0
Light & Motion [Member] |  |  |  |
Capital expenditures: |  |  |  |
Capital expenditures | 5.1 | 4.5 | 16.7 | 8.5
Depreciation and amortization: |  |  |  |
Depreciation and amortization | 9.8 | 10.5 | 18.8 | 23.9
Equipment & Solutions [Member] |  |  |  |
Capital expenditures: |  |  |  |
Capital expenditures | 3.4 | 1.4 | 9.7 | 3.3
Depreciation and amortization: |  |  |  |
Depreciation and amortization | $ 8.7 | $ 8.5 | $ 17.7 | $ 18.6

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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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