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Significant Accounting Policies - Additional Information (Detail) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Mar. 31, 2020
Jan. 31, 2020
Dec. 31, 2019
Aug. 31, 2018
Jun. 30, 2016
Mar. 31, 2018
Dec. 31, 2017
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2019
Significant Of Accounting Policies [Line Items]                        
Highly liquid investments included in cash and cash equivalents, maturity period               3 months        
Allowances for credit losses     $ 3,000,000.0         $ 6,700,000 $ 3,000,000.0      
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 first-in, first out (“FIFO”) for product groups in which metals comprise a significant portion of inventory cost.        
Impairment of long-lived asset                   $ 0    
Investments     29,200,000         $ 3,500,000 29,200,000      
Impairment of Investments               0 0 0    
Unrecognized tax benefits pertaining to uncertain tax positions     88,000,000.0       $ 87,500,000 96,100,000 88,000,000.0 $ 83,500,000 $ 87,500,000  
Reconciliation of income taxes             35.00%     21.00% 35.00%  
Advertising costs               259,400,000 251,700,000 $ 243,600,000    
Advertising costs, reduction to net sales               66,700,000 74,000,000.0 72,400,000    
Operating lease assets     $ 165,600,000         170,200,000 165,600,000      
Operating lease liabilities               $ 179,000,000.0        
Accounting Standards Update 2018-13 [Member]                        
Significant Of Accounting Policies [Line Items]                        
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 removed 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 modified and added other disclosure requirements, which primarily relate to valuation of Level 3 assets and liabilities. We adopted this guidance on January 1, 2020. The adoption of this guidance did not have a material effect on our financial statements.                
Change in accounting principle, accounting standards update, adopted               true        
Change in accounting principle, accounting standards update, adoption date               Jan. 01, 2020        
Change in accounting principle, accounting standards update, immaterial effect               true        
Accounting Standards Update 2018-15 [Member]                        
Significant Of Accounting Policies [Line Items]                        
New Accounting Pronouncement or Change in Accounting Principle, Description       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. We adopted this guidance on January 1, 2020. The adoption of this guidance did not have a material effect on our financial statements.                
Change in accounting principle, accounting standards update, adopted               true        
Change in accounting principle, accounting standards update, adoption date               Jan. 01, 2020        
Change in accounting principle, accounting standards update, immaterial effect               true        
Accounting Standards Update 2019-12 [Member]                        
Significant Of Accounting Policies [Line Items]                        
New Accounting Pronouncement or Change in Accounting Principle, Description     Simplifying the Accounting for Income Taxes In December 2019, the FASB issued ASU 2019-12, which is intended to simplify accounting for income taxes and improve consistency in application. ASU 2019-12 amends certain elements of income tax accounting, including but not limited to intraperiod tax allocations, step-ups in tax basis of goodwill, and calculating taxes on year-to-date losses in interim periods. The guidance is effective for the Company’s fiscal year beginning January 1, 2021, with early adoption permitted. We do not expect the adoption of this guidance to have a material effect on our financial statements.                  
Change in accounting principle, accounting standards update, adopted               true        
Change in accounting principle, accounting standards update, adoption date               Jan. 01, 2021        
Change in accounting principle, accounting standards update, immaterial effect               true        
Change in accounting principle, accounting standards update, early adoption               true        
Accounting Standards Update 2020-01 [Member]                        
Significant Of Accounting Policies [Line Items]                        
New Accounting Pronouncement or Change in Accounting Principle, Description   Clarifications in Accounting for Equity Securities In January 2020, the FASB issued ASU 2020-01, which clarifies the interactions between accounting for equity investments (ASC 321), equity method accounting (ASC 323) and derivatives and hedges (ASC 815). As a result of the ASU, when entities apply the measurement alternative to non-controlling equity investments under ASC 321, and must transition to the equity method of accounting because of an observable transaction, existing investments should be remeasured immediately before applying the equity method of accounting. Additionally, it states that if entities hold non-derivative forward contracts or purchased call options to acquire equity securities, such instruments should be measured using the fair value principles of ASC 321 before settlement or exercise. The Company early adopted this guidance on January 1, 2020, and as a result recognized non-cash gains of $11.0 million within other income in 2020 related to our investment in Flo Technologies, Inc.                    
Change in accounting principle, accounting standards update, adopted               true        
Change in accounting principle, accounting standards update, adoption date               Jan. 01, 2020        
Change in accounting principle, accounting standards update, immaterial effect               false        
Change in accounting principle, accounting standards update, early adoption               true        
Accounting Standards Update 2016-13 [Member]                        
Significant Of Accounting Policies [Line Items]                        
New Accounting Pronouncement or Change in Accounting Principle, Description         Leases In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, which requires lessees to recognize almost all leases on their balance sheet as “right-of-use” assets and lease liabilities but recognize related expenses in a manner similar to previous accounting guidance. The guidance also eliminates previous real estate-specific provisions for all entities. In January 2018, the FASB issued ASU 2018-01, which clarifies the application of the new leases guidance to land easements. In July 2018, the FASB issued ASU 2018-10 and ASU 2018-11, which clarify certain guidance included in ASU 2016-02 and introduces a new optional transition method, which does not require revisions to comparative periods. We adopted this standard as of January 1, 2019 using the transition method introduced by ASU 2018-11, which does not require revisions to comparative periods.  We elected to implement the transition package of practical expedients permitted within the new standard, which among other things, allows us to carryforward the historical lease classification.  In addition, we elected the hindsight practical expedient to determine the lease term for existing leases. Adoption of the new standard resulted in the recording of lease assets and lease liabilities of approximately $177.2 million and $182.6 million, respectively, as of January 1, 2019.  The difference between the lease assets and lease liabilities primarily relates to accrued rent and unamortized lease incentives recorded in accordance with the previous leasing guidance.  The new standard did not materially impact our consolidated statements of income or cash flows. Financial Instruments—Credit Losses In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, which changes the impairment model for most financial assets and certain other instruments that are not measured at fair value through net income. The new guidance applies to most financial assets measured at amortized cost, including trade and other receivables and loans as well as off-balance-sheet credit exposures (e.g., loan commitments and standby letters of credit). The standard replaced the “incurred loss” approach under the current guidance with an “expected loss” model that requires an entity to estimate its lifetime “expected credit loss.” We adopted this guidance on January 1, 2020. The adoption of this guidance did not have a material effect on our financial statements.              
Change in accounting principle, accounting standards update, adopted               true        
Change in accounting principle, accounting standards update, adoption date               Jan. 01, 2020        
Change in accounting principle, accounting standards update, immaterial effect               true        
Accounting Standards Update 2020-04 [Member]                        
Significant Of Accounting Policies [Line Items]                        
New Accounting Pronouncement or Change in Accounting Principle, Description Effects of Reference Rate Reform In March 2020, the FASB issued ASU 2020-04, which provides relief from accounting analysis and impacts that may otherwise be required for modifications to agreements necessitated by reference rate reform. It also provides optional expedients to enable the continuance of hedge accounting where certain hedging relationships are impacted by reference rate reform. In January 2021, the FASB issued ASU 2021-01 which further clarifies the scope of ASU 2020-04. This optional guidance is effective immediately, and available to be used through December 31, 2022. We are assessing the impact that reference rate reform and the related adoption of this guidance may have on our financial statements.                      
(ASU) 2016-02 [Member]                        
Significant Of Accounting Policies [Line Items]                        
Operating lease assets                       $ 177,200,000
Operating lease liabilities                       $ 182,600,000
Cash flow hedge [Member] | Foreign exchange contracts [Member]                        
Significant Of Accounting Policies [Line Items]                        
Gain (loss) reclassified from Accumulated OCI into earnings               $ (3,000,000.0) 4,100,000 2,200,000    
Estimated amount of net derivative gain in other comprehensive income reclassified to earnings within 12 months               $ 2,000,000.0        
Minimum [Member]                        
Significant Of Accounting Policies [Line Items]                        
Remaining lease terms               1 year        
Percentage of voting interests of investee to exercise significant influence               20.00%        
Reasonably possible decrease in unrecognized tax benefits               $ 4,000,000.0        
Maximum [Member]                        
Significant Of Accounting Policies [Line Items]                        
Remaining lease terms               35 years        
Reasonably possible decrease in unrecognized tax benefits               $ 48,100,000        
Cost of products sold [Member]                        
Significant Of Accounting Policies [Line Items]                        
Impairment of long-lived asset                 1,700,000      
Cost of products sold [Member] | Foreign exchange contracts [Member]                        
Significant Of Accounting Policies [Line Items]                        
Gain (loss) reclassified from Accumulated OCI into earnings               (3,000,000.0) 4,100,000 2,200,000    
Selling, general and administrative Expenses [Member]                        
Significant Of Accounting Policies [Line Items]                        
Impairment of long-lived asset               3,600,000        
Customer program costs               64,700,000 66,300,000 66,500,000    
Shipping and handling costs               232,600,000 225,500,000 215,900,000    
Advertising costs               192,700,000 177,700,000 171,200,000    
Research and development expenses               49,900,000 48,200,000 $ 50,300,000    
Other Income [Member] | Accounting Standards Update 2020-01 [Member] | Flo Technologies, Inc. [Member]                        
Significant Of Accounting Policies [Line Items]                        
Remeasurement non-cash gains on investment               11,000,000.0        
Metals inventories [Member]                        
Significant Of Accounting Policies [Line Items]                        
LIFO inventories     $ 0         $ 0 $ 0      
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