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Description of Business, Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions | 12 Months Ended |
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Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Measurement period used to determine the long term expected return plan assets | 5 years |  |  |
Research and Development Expense, Percentage of Sales | 0.034 |  | 0.036 |
Restricted Cash and Cash Equivalents | $ 0.8 | $ 0.8 | $ 1.0 | $ 1.2
LIFO inventory, percentage of total | 12.50% | 14.50% |  |
LIFO inventory reserve amount recorded | $ 12.0 | $ 12.4 |  |
Maturities of time deposits, description | original maturity exceeding three months at the time of purchase, referred to as short-term time deposits, are classified as held-to-maturity and are recorded at amortized cost, which approximates fair value. |  |  |
Short-term investments | $ 0.0 |  |  |
Investments in Corporate Owned Life Insurance | 113.7 | 109.1 |  |
Gain from Corporate Owned Life Insurance | 4.3 | 4.8 | 2.8 |
Tangible Asset Impairment Charges | 4.0 |  |  |
Goodwill and Intangible Asset Impairment | $ 12.3 |  |  |
Acquisition measurement period | 12 months |  |  |
Foreign Currency Transaction Gain (Loss), before Tax | $ 7.6 | $ 2.7 | $ 1.2 |
Related Party Costs | $ 0.2 |  |  |
Minimum [Member] | Software [Member] |  |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Capitalized Software, Useful Life | 3 years |  |  |
Minimum [Member] | Intangible assets with a finite life amortized on a straight-line basis [Member] |  |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 7 years |  |  |
Maximum [Member] | Software [Member] |  |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Capitalized Software, Useful Life | 7 years |  |  |
Maximum [Member] | Intangible assets with a finite life amortized on a straight-line basis [Member] |  |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 20 years |  |  |
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Concentration Risk, Percentage | 12.00% | 13.00% |  |

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