Business and Recent Accounting Pronouncements - (Policies)	3 Months Ended
	Apr. 03, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying interim unaudited Consolidated Financial Statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial reporting. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair statement of our results of operations for the interim periods reported and of our financial condition as of the date of the interim balance sheet have been included. The Consolidated Balance Sheet as of January 2, 2021 included herein was derived from the audited Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended January 2, 2021 (our “2020 Annual Report”). This Quarterly Report on Form 10-Q should be read in conjunction with the annual audited Consolidated Financial Statements and accompanying notes in our 2020 Annual Report. The accounting policies used in these interim Consolidated Financial Statements are consistent with those used in the annual Consolidated Financial Statements. The presentation of these interim Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and accompanying notes.
Cost of sales	Cost of salesWe record costs associated with the manufacturing of our products in cost of sales. Shipping and handling costs incurred to store, prepare and move products between production facilities or from production facilities to branch locations or storage facilities are recorded in cost of sales. Shipping and handling costs incurred to deliver products from our North America and Rest of World reporting segment branch locations to the end-user consumer of those products are recorded in SG&A expenses. All other costs incurred in the shipment of products from our production facilities to customer locations are reflected in cost of sales. Shipping and handling costs included in SG&A expenses were $110.1 million and $120.0 million for the three months ended April 3, 2021 and March 28, 2020, respectively. Finished goods inventory costs include the cost of direct labor and materials and the applicable share of overhead expense chargeable to production.
Recently adopted accounting pronouncements and Recently issued accounting pronouncements	Recently adopted accounting pronouncements Update ASU 2018-14 – Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20) In August 2018, the Financial Accounting Standards Board (“FASB”) amended its guidance on disclosure requirements for defined benefit plans. The update amends existing annual disclosure requirements applicable to all employers that sponsor defined benefit pension and other postretirement plans by adding, removing, and clarifying certain disclosures. The amendments in this update are effective for fiscal years beginning after December 15, 2020, with early adoption permitted, and are to be applied on a retrospective basis to all periods presented. Adoption of the new standard did not have a material impact on our Consolidated Financial Statements. Recently issued accounting pronouncements Update ASU 2020-04 – Reference Rate Reform (Topic 848) In March 2020, the FASB issued guidance which provides optional expedients and exceptions to account for contracts, hedging relationships and other transactions that reference LIBOR or any other reference rates expected to be discontinued because of reference rate reform. This guidance is effective as of March 12, 2020 through December 31, 2022 and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. The Company has not adopted any of the optional expedients or exceptions through April 3, 2021 but will continue to evaluate the possible adoption of any such expedients or exceptions during the effective period as circumstances evolve.
Revenue	Revenue is recognized, net of sales returns, when a customer obtains control of promised goods or services in an amount that reflects the consideration we expect to receive in exchange for those goods or services. We measure revenue based on the consideration specified in the client arrangement, and revenue is recognized when the performance obligations in the client arrangement are satisfied. A performance obligation is a contractual promise to transfer a distinct service to the customer. The transaction price of a contract is allocated to each distinct performance obligation and recognized as revenue when the customer receives the benefit of the performance obligation. Clients typically receive the benefit of our services as they are performed. Substantially all our customer contracts require that we be compensated for services performed to date. This may be upon shipment of goods or upon delivery to the customer, depending on contractual terms. Shipping and handling costs paid by the customer to us are included in revenue and costs incurred by us for shipping and handling activities that are performed after a customer obtains control of the product are accounted for as fulfillment costs. In addition, we exclude from net revenue and cost of sales taxes assessed by governmental authorities on revenue-producing transactions. Although we occasionally accept returns of products from our customers, historically returns have not been material.