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Description of Business and Summary of Significant Accounting Policies (Details) | 12 Months Ended
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Dec. 31, 2020 USD ($) segments number | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Goodwill [Line Items] |  |  |
Number of Reporting Units | number | 15 |  |
Goodwill, Impairment Loss | $ 0 | $ 0 | $ 0
Description of Business [Abstract] |  |  |
Number of Reportable Segments | segments | 5 |  |
Cash and Cash Equivalents [Abstract] |  |  |
Maturity Period Of Cash Equivalent (in months) | three months or less |  |
Share-based Compensation [Abstract] |  |  |
Vesting period (in years) | 3 years |  |
Research and Development [Abstract] |  |  |
Research and Development Expense as a Percent of Revenue | 0.021 | 0.020 | 0.020
Research and development expense | $ 142,101,000 | $ 140,957,000 | $ 143,033,000
Advertising [Abstract] |  |  |
Advertising expense | 21,375,000 | $ 24,609,000 | $ 26,831,000
Risk, Retention, Insurance [Abstract] |  |  |
Maximum Limit For Self Insurance Product Commercial General Liability Claims | 5,000,000.0 |  |
Maximum Limit For Self Insurance Workers Compensation Claims Expected | 800,000 |  |
Maximum Limit For Self Insurance Automobile Liability Claims | $ 1,000,000.0 |  |
Other Intangible Assets [Member] | Minimum [Member] |  |  |
Goodwill [Line Items] |  |  |
Other intangible assets, useful life | 5 years |  |
Other Intangible Assets [Member] | Maximum [Member] |  |  |
Goodwill [Line Items] |  |  |
Other intangible assets, useful life | 20 years |  |

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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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