Accounting Policies (Policies)	9 Months Ended
Sep. 29, 2024
Accounting Policies
Shipping and Handling	Shipping and Handling Shipping and handling costs included in selling, general and administrative expenses amounted to $20.5 million and $16.8 million for the third quarters of 2024 and 2023, respectively, and were $64.3 million and $50.7 million for the first nine months of 2024 and 2023, respectively.
Research and Development	Research and Development Research and development costs included in selling, general and administrative expenses amounted to $17.6 million and $15.2 million for the third quarters of 2024 and 2023, respectively, and were $54.0 million and $47.3 million for the first nine months of 2024 and 2023, respectively.
Basis of Presentation	The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included in the Watts Water Technologies, Inc. (the “Company”) Consolidated Balance Sheet as of September 29, 2024, the Consolidated Statements of Operations for the third quarters and nine months ended September 29, 2024 and September 24, 2023, the Consolidated Statements of Comprehensive Income for the third quarters and nine months ended September 29, 2024 and September 24, 2023, the Consolidated Statements of Stockholders’ Equity for the third quarters and nine months ended September 29, 2024 and September 24, 2023, and the Consolidated Statements of Cash Flows for the nine months ended September 29, 2024 and September 24, 2023. The consolidated balance sheet at December 31, 2023 has been derived from the audited consolidated financial statements at that date. The accounting policies followed by the Company are described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. The financial statements included in this report should be read in conjunction with the consolidated financial statements and notes included in the Annual Report on Form 10-K for the year ended December 31, 2023. Operating results for the interim periods presented are not necessarily indicative of the results to be expected for the year ending December 31, 2024. The Company operates on a 52-week fiscal year ending on December 31, with each quarter, except the fourth quarter, ending on a Sunday. Any quarterly data contained in this Quarterly Report on Form 10-Q generally reflect the results of operations for a 13-week period.
Estimates	Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We are not aware of any specific event or circumstance that would require updates to the Company’s estimates or judgments, or require the Company to revise the carrying value of the Company’s assets or liabilities, as of the date of issuance of this Quarterly Report on Form 10-Q. These estimates may change as new events occur and additional information is obtained. Actual results could differ from those estimates.
Accounting Standard Updates	Accounting Standard Updates In March 2024, the Securities and Exchange Commission (“SEC”) adopted climate-related reporting rules, “The Enhancement and Standardization of Climate-Related Disclosures for Investors” (the “SEC Climate Reporting Rules”), which require the disclosure of material Scope 1 and Scope 2 greenhouse gas emissions and other climate-related topics in annual reports and registration statements. For large accelerated filers, disclosure requirements will begin phasing in for fiscal years beginning on or after January 1, 2025. The Company is currently evaluating the impact these rules will have on the Company’s consolidated financial statements and related disclosures. In April 2024, the SEC voluntarily stayed the implementation of the final rules in response to legal challenges. In the stay order, the SEC noted it intends to vigorously defend the validity of the final rules. The Company is monitoring the outcome of the voluntary stay. In December 2023, the FASB issued ASU 2023-09 "Income Taxes (Topics 740): Improvements to Income Tax Disclosures" to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for our annual periods beginning January 1, 2025, with early adoption permitted. The Company is currently evaluating the potential effect that the updated standard will have on the Company’s financial statement disclosures. In November 2023, the Financial Standards Accounting Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07 "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. The amendments in ASU 2023-07 are effective for our annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, and are to be applied retrospectively to all prior periods presented in the financial statements. The Company has evaluated the new guidance and will include the required additional disclosures in the Segment Information footnote of the consolidated financial statements for the year ending December 31, 2024.

Accounting Policies (Policies)

9 Months Ended

Sep. 29, 2024

Shipping and Handling

Shipping and handling costs included in selling, general and administrative expenses amounted to $20.5 million and $16.8 million for the third quarters of 2024 and 2023, respectively, and were $64.3 million and $50.7 million for the first nine months of 2024 and 2023, respectively.

Research and Development

Research and Development

Research and development costs included in selling, general and administrative expenses amounted to $17.6 million and $15.2 million for the third quarters of 2024 and 2023, respectively, and were $54.0 million and $47.3 million for the first nine months of 2024 and 2023, respectively.

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included in the Watts Water Technologies, Inc. (the “Company”) Consolidated Balance Sheet as of September 29, 2024, the Consolidated Statements of Operations for the third quarters and nine months ended September 29, 2024 and September 24, 2023, the Consolidated Statements of Comprehensive Income for the third quarters and nine months ended September 29, 2024 and September 24, 2023, the Consolidated Statements of Stockholders’ Equity for the third quarters and nine months ended September 29, 2024 and September 24, 2023, and the Consolidated Statements of Cash Flows for the nine months ended September 29, 2024 and September 24, 2023.

The consolidated balance sheet at December 31, 2023 has been derived from the audited consolidated financial statements at that date. The accounting policies followed by the Company are described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. The financial statements included in this report should be read in conjunction with the consolidated financial statements and notes included in the Annual Report on Form 10-K for the year ended December 31, 2023. Operating results for the interim periods presented are not necessarily indicative of the results to be expected for the year ending December 31, 2024.

The Company operates on a 52-week fiscal year ending on December 31, with each quarter, except the fourth quarter, ending on a Sunday. Any quarterly data contained in this Quarterly Report on Form 10-Q generally reflect the results of operations for a 13-week period.

Estimates

Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We are not aware of any specific event or circumstance that would require updates to the Company’s estimates or judgments, or require the Company to revise the carrying value of the Company’s assets or liabilities, as of the date of issuance of this Quarterly Report on Form 10-Q. These estimates may change as new events occur and additional information is obtained. Actual results could differ from those estimates.

Accounting Standard Updates

Accounting Standard Updates

In March 2024, the Securities and Exchange Commission (“SEC”) adopted climate-related reporting rules, “The Enhancement and Standardization of Climate-Related Disclosures for Investors” (the “SEC Climate Reporting Rules”), which require the disclosure of material Scope 1 and Scope 2 greenhouse gas emissions and other climate-related topics in annual reports and registration statements. For large accelerated filers, disclosure requirements will begin phasing in for fiscal years beginning on or after January 1, 2025. The Company is currently evaluating the impact these rules will have on the Company’s consolidated financial statements and related disclosures. In April 2024, the SEC voluntarily stayed the implementation of the final rules in response to legal challenges. In the stay order, the SEC noted it intends to vigorously defend the validity of the final rules. The Company is monitoring the outcome of the voluntary stay.

In December 2023, the FASB issued ASU 2023-09 "Income Taxes (Topics 740): Improvements to Income Tax Disclosures" to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for our annual periods beginning January 1, 2025, with early adoption permitted. The Company is currently evaluating the potential effect that the updated standard will have on the Company’s financial statement disclosures.

In November 2023, the Financial Standards Accounting Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07 "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. The amendments in ASU 2023-07 are effective for our annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, and are to be applied retrospectively to all prior periods presented in the financial statements. The Company has evaluated the new guidance and will include the required additional disclosures in the Segment Information footnote of the consolidated financial statements for the year ending December 31, 2024.