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Significant Accounting Policies - Additional Information (Detail) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Aug. 31, 2018
Jul. 31, 2018
Jun. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Significant Of Accounting Policies [Line Items]                    
Highly liquid investments included in cash and cash equivalents, maturity period             3 months      
Allowances for doubtful accounts       $ 3,700,000 $ 3,300,000   $ 3,700,000 $ 3,300,000    
Inventories       678,900,000 [1] 580,800,000   678,900,000 [1] 580,800,000    
Impairment of long-lived asset           $ 3,000,000        
Unrecognized tax benefits pertaining to uncertain tax positions       83,500,000 87,500,000   83,500,000 87,500,000 $ 58,200,000 $ 38,200,000
Income taxes, estimated net benefit         25,700,000          
Tax reform deferred tax impact of tax rate changes             5,500,000      
Advertising costs             243,600,000 233,200,000 199,100,000  
Advertising costs, reduction to net sales             72,400,000 65,600,000 52,500,000  
Research and development expenses             50,300,000 50,700,000 53,100,000  
Estimated amount of net foreign currency derivative gains (loss) in other comprehensive income reclassified to earnings       3,300,000     3,300,000      
Effect of health care cost trend rate 1.00%                  
Investments       28,700,000 0   28,700,000 0    
ImpairmentOfInvestments             $ 0 7,000,000    
New Accounting Pronouncement or Change in Accounting Principle, Description Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, the FASB issued ASU 2018-13 which removes the requirement to disclose: 1) amount of and reasons for transfers between Levels 1 and 2 of the fair value hierarchy, 2) policy for timing of transfers between levels, and 3) valuation processes for Level 3 investments. In addition, this guidance modifies and adds other disclosure requirements, which primarily relate to valuation of Level 3 assets and liabilities. The guidance is effective for the Company’s fiscal year beginning January 1, 2020, with early adoption permitted. We do not expect the adoption of this guidance to have a material effect on our financial statements. Changes to the Disclosure Requirements for Defined Benefit Plans In August 2018, the FASB issued ASU 2018-14 which removes several disclosure requirements, including the amount in AOCI expected to be recognized in income over the next fiscal year and the effects of a 1% change in assumed health care cost trend rates and adds new disclosure requirements to explain reasons for significant gains and losses related to changes in the benefit obligation for the period, and to disclose weighted-average interest crediting rates for plans with promised interest crediting rates. The guidance is effective for the Company’s fiscal year beginning January 1, 2020, with early adoption permitted. We do not expect the adoption of this guidance to have a material effect on our financial statements. Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract In August 2018, the FASB issued ASU 2018-15 which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. Costs to obtain software, including configuration and integration with legacy IT systems, coding and testing, including parallel process phases are eligible for capitalization under the new standard. In addition, activities that would be expensed include costs related to vendor demonstrations, determining performance and technology requirements and training activities. The standard is effective for the Company’s fiscal year beginning January 1, 2020, with early adoption permitted. We are assessing the impact the adoption of this standard will have on our financial statements. Codification Improvements In July 2018, the FASB issued ASU 2018-09 which includes technical corrections, clarifications, and other minor improvements to various areas including business combinations, fair value measurements and hedging. The transition and effective date guidance is based on the facts and circumstances of each amendment. Some of the amendments in this standard were effective immediately, while others will be effective for the Company’s fiscal year beginning January 1, 2019. Our adoption of the immediately effective pieces of this standard did not have a material effect on our financial statements, nor do we expect the adoption of the other aspects of this standard to be material. Improvements to Nonemployee Share-Based Payment Accounting In June 2018, the FASB issued ASU 2018-07 which simplifies the accounting for share-based arrangements with nonemployees. The new guidance generally aligns the accounting for share-based awards to nonemployees with the guidance for share-based awards to employees. The guidance is effective for the Company’s fiscal year beginning January 1, 2019. We do not expect the adoption of this guidance to have a material effect on our financial statements.              
Change in Accounting Estimate, Description             During the fourth quarter of 2018, we determined that it was preferable to change our accounting policy from last-in, first-out (“LIFO”) to FIFO for product groups in which metals comprise a significant portion of inventory cost.      
Reduction in deferred tax liabilities       150,700,000 157,400,000   $ 150,700,000 157,400,000    
Repatriation tax liability             28,500,000      
Increase In Provision For Tax             8,200,000      
Adjustments to deferred tax liabilty             5,500,000      
Federal Income Tax Rate [Member]                    
Significant Of Accounting Policies [Line Items]                    
Reduction in deferred tax liabilities       62,400,000     62,400,000      
Change in Accounting Method Accounted for as Change in Estimate [Member]                    
Significant Of Accounting Policies [Line Items]                    
Adjustment to cost of inventories to FIFO pre-tax benefit       7,300,000            
Adjustment To Cost Of Inventories to FIFO Post Tax Benefit       5,500,000            
Cash flow hedge [Member] | Foreign exchange contracts [Member]                    
Significant Of Accounting Policies [Line Items]                    
Gain (loss) reclassified from Accumulated OCI into earnings             2,200,000 400,000 (3,500,000)  
Estimated amount of net foreign currency derivative gains (loss) in other comprehensive income reclassified to earnings       3,300,000     3,300,000      
Selling, general and administrative Expenses [Member]                    
Significant Of Accounting Policies [Line Items]                    
Impairment of long-lived asset               5,100,000    
Customer program costs             66,500,000 62,400,000 44,100,000  
Shipping and handling costs             215,900,000 204,700,000 197,000,000  
Advertising costs             171,200,000 167,600,000 $ 146,600,000  
Minimum [Member]                    
Significant Of Accounting Policies [Line Items]                    
Reasonably possible decrease in unrecognized tax benefits       1,400,000     1,400,000      
Operating Lease, Right-of-Use Asset       170,000,000     170,000,000      
Maximum [Member]                    
Significant Of Accounting Policies [Line Items]                    
Reasonably possible decrease in unrecognized tax benefits       3,500,000     3,500,000      
Operating Lease, Right-of-Use Asset       $ 200,000,000     $ 200,000,000      
Income Approach [Member]                    
Significant Of Accounting Policies [Line Items]                    
Goodwill recoverability weighted percentage       80.00%     80.00%      
Market Approach [Member]                    
Significant Of Accounting Policies [Line Items]                    
Goodwill recoverability weighted percentage       20.00%     20.00%      
Metals inventories [Member]                    
Significant Of Accounting Policies [Line Items]                    
LIFO inventories       $ 0 245,600,000   $ 0 245,600,000    
Inventories       $ 0 $ 259,300,000   $ 0 $ 259,300,000    
[1] 2018 includes the impact of acquiring Fiberon. See Note 4 for additional information.