Quarterly report pursuant to Section 13 or 15(d)


3 Months Ended
Apr. 01, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Interim Condensed Financial Statements
The unaudited Condensed Consolidated Financial Statements reflect all adjustments which, in the opinion of management, are necessary for a fair statement of the results of operations, financial position and cash flows. All such adjustments are of a normal recurring nature. The Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles in the United States of America (GAAP) pursuant to the rules and regulations of the Securities and Exchange Commission (SEC) for interim financial information. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted as permitted by such rules and regulations.
These interim condensed financial statements should be read in conjunction with the Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2017. Our interim period financial results for the three month periods presented are not necessarily indicative of results to be expected for any other interim period or for the entire year. The year-end Condensed Consolidated Balance Sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP.
Certain amounts for prior year periods have been reclassified to conform to the presentation of the current year.
Use of Estimates in Preparation of Financial Statements
Preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts presented and disclosed in our Condensed Consolidated Financial Statements. Significant estimates and assumptions in these Condensed Consolidated Financial Statements require the exercise of judgment and are used for, but not limited to, allowance for doubtful accounts, estimates of future cash flows and other assumptions associated with goodwill and long-lived asset impairment tests, useful lives for depreciation and amortization, warranty programs, determination of discount rate and other assumptions for pension and other postretirement benefit costs, income taxes and deferred tax valuation allowances, lease classification and contingencies. Due to the inherent uncertainty involved in making estimates, actual results reported in future periods may be different from these estimates.
Reporting Period
Our reporting period usually ends on the Sunday closest to the last day of the quarterly calendar period. The first quarters of 2018 and 2017 ended on April 1 and April 2, respectively. Our fiscal year ends on December 31, regardless of the day of the week on which December 31 falls.
Weighted-Average Diluted Shares Outstanding
The weighted-average diluted common shares outstanding excludes the anti-dilutive effect of certain stock options since such options had an exercise price in excess of the monthly average market value of our common stock. The options excluded from diluted earnings per share were as follows:
Three months ended
April 1,
April 2,
Options excluded