Accounting Policies	3 Months Ended
Mar. 27, 2022
Accounting Policies
Accounting Policies	2. Accounting Policies The significant accounting policies used in preparation of these consolidated financial statements for the first quarter ended March 27, 2022, are consistent with those discussed in Note 2 of the Notes to Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021. Shipping and Handling Shipping and handling costs included in selling, general and administrative expenses amounted to $17.7 million and $15.4 million for the first quarters of 2022 and 2021, respectively. Research and Development Research and development costs included in selling, general and administrative expenses amounted to $11.9 million and $10.9 million for the first quarters of 2022 and 2021, respectively.

The entire disclosure for all significant accounting policies of the reporting entity.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123372394&loc=d3e18726-107790

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-URI http://asc.fasb.org/topic&trid=2122369

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