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Goodwill and Intangible Assets - Narratives (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Finite-Lived Intangible Assets |  |  |  |  |
Accumulated goodwill impairment loss | $ 129.0 |  | $ 129.0 |  | $ 129.0
Amortization expense | 9.6 | $ 14.0 | 18.4 | $ 28.0 |
Cryo Tank Solutions |  |  |  |  |
Finite-Lived Intangible Assets |  |  |  |  |
Accumulated goodwill impairment loss | 23.5 |  | 23.5 |  | 23.5
Heat Transfer Systems |  |  |  |  |
Finite-Lived Intangible Assets |  |  |  |  |
Accumulated goodwill impairment loss | 49.3 |  | 49.3 |  | 49.3
Specialty Products |  |  |  |  |
Finite-Lived Intangible Assets |  |  |  |  |
Accumulated goodwill impairment loss | 35.8 |  | 35.8 |  | 35.8
Repair, Service & Leasing |  |  |  |  |
Finite-Lived Intangible Assets |  |  |  |  |
Accumulated goodwill impairment loss | $ 20.4 |  | $ 20.4 |  | $ 20.4
Government grants | Minimum |  |  |  |  |
Finite-Lived Intangible Assets |  |  |  |  |
Finite lived intangible assets useful life (in years) |  |  | 10 years |  |
Government grants | Maximum |  |  |  |  |
Finite-Lived Intangible Assets |  |  |  |  |
Finite lived intangible assets useful life (in years) |  |  | 50 years |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: 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=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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