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v3.19.2

Principal Accounting Policies and Related Financial Information (Details) shares in Millions, $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2017 USD ($) | Dec. 31, 2018 USD ($) class segment | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Oct. 15, 2018 shares
Nature of Operations |  |  |  |  |
Number of business segments | segment |  | 1 |  |  |
Number of major classes of crop protection | class |  | 3 |  |  |
Original maturity, maximum number of months |  | 3 months |  |  |
Trade receivable, net of allowance |  |  |  |  |
Allowance for trade receivable | $ 38.6 | $ 22.4 | $ 38.6 | $ 16.6 |
Allowance for long term customer receivables, beginning | 47.1 | 60.5 | 47.1 | 49.1 |
Additions — charged to expense |  | $ 71.4 | 22.1 | 22.0 |
Investments |  |  |  |  |
Maximum ownership percentage for equity method investments |  | 50.00% |  |  |
Capitalized Interest |  |  |  |  |
Capitalized interest costs |  | $ 4.1 | 1.6 | 1.9 |
Asset Retirement Obligation [Abstract] |  |  |  |  |
Asset retirement obligation | 1.9 | $ 2.6 | 1.9 |  |
Goodwill and Intangible Assets |  |  |  |  |
Impairment loss on indefinite-lived intangible asset | $ 42.0 |  | $ 42.1 | $ 9.3 |
Minimum |  |  |  |  |
Goodwill and Intangible Assets |  |  |  |  |
Useful lives of finite-lived intangible assets |  | 3 years |  |  |
Maximum |  |  |  |  |
Goodwill and Intangible Assets |  |  |  |  |
Useful lives of finite-lived intangible assets |  | 20 years |  |  |
Land Improvements |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Useful lives of property, plant and equipment |  | 20 years |  |  |
Building | Minimum |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Useful lives of property, plant and equipment |  | 20 years |  |  |
Building | Maximum |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Useful lives of property, plant and equipment |  | 40 years |  |  |
Machinery and Equipment | Minimum |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Useful lives of property, plant and equipment |  | 3 years |  |  |
Machinery and Equipment | Maximum |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Useful lives of property, plant and equipment |  | 18 years |  |  |
Software Development | Minimum |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Useful lives of property, plant and equipment |  | 3 years |  |  |
Software Development | Maximum |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Useful lives of property, plant and equipment |  | 10 years |  |  |
Livent |  |  |  |  |
Nature of Operations |  |  |  |  |
Shares owned by parent (in shares) | shares |  |  |  |  | 123
Outstanding shares of parent, percentage |  |  |  |  | 84.00%

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