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1. Significant Accounting Policies (Tables)
9 Months Ended 12 Months Ended
Sep. 30, 2022
Dec. 31, 2022
Accounting Policies [Abstract]    
Schedule of Product Warranty Liability  
Warranty liabilities are included in Other current liabilities and Other long-term liabilities in the consolidated balance sheets. Change in our warranty liability were as follows (in millions):
202220212020
January 1$12.7 $9.8 $9.0 
Provision for warranty8.8 14.8 9.4 
Actual warranty costs(10.9)(11.9)(8.6)
December 31$10.6 $12.7 $9.8 
Schedule of Weighted Average Number of Shares   The weighted average number of common shares outstanding used to calculate basic and diluted earnings (loss) per share, and the anti-dilutive shares that are excluded from the diluted earnings (loss) per share calculation are as follows (in thousands):
 Year Ended December 31,
 202220212020
Basic weighted average shares common outstanding29,785 29,831 29,768 
Effect of potentially dilutive stock options, restricted   
   stock and performance stock awards— 377 392 
Diluted weighted average common shares outstanding29,785 30,208 30,160 
Anti-dilutive shares325 33 44 
Accounts Receivable, Allowance for Credit Loss  
Changes in our allowance for credit losses were as follows (in millions):

December 31,202220212020
Beginning balance$15.1 $19.8 $20.2 
Provision for expected credit losses1.71.4 1.2 
Write-offs charged against the allowance(1.9)(6.4)(1.6)
Recoveries collected0.1 0.3 — 
Ending balance$15.0 $15.1 $19.8 
Schedule of Error Corrections and Prior Period Adjustments The effect of the revision to our consolidated balance sheet as of December 31, 2021 was as follows (in millions):
 December 31, 2021
 As reportedAdjustmentAs revised
Consolidated Balance Sheet:
Prepaid expenses$107.7 $1.4 $109.1 
Property, plant and equipment, net491.0 20.7 511.7 
Other assets102.7 1.5 104.2 
Deferred income taxes3,059.1 5.5 3,064.6 
Retained earnings13,507.2 18.1 13,525.3 

The effect of the revision to our consolidated statements of income (loss) and consolidated statements of cash flows for the years ended December 31, 2021 and 2020 were as follows (in millions, except per share data):

 Year Ended December 31, 2021
 As reportedAdjustmentAs revised
Consolidated Statements of Income (Loss):
Cost of goods sold$1,281.9 $2.6 $1,284.5 
Selling, general and administrative expense879.6 (2.5)877.1 
Research and development expense271.7 (11.1)260.6 
Income from operations489.4 10.9 500.3 
Benefit from (provision for) income taxes(1,192.2)(2.6)(1,194.8)
Net income (loss)4,245.9 8.4 4,254.3 
Net income (loss) per basic share142.33 0.28 142.61 
Net income (loss) per diluted share140.56 0.27 140.83 
 Year Ended December 31, 2021
 As reportedAdjustmentAs revised
Consolidated Statement of Cash Flows:
Net cash provided by operating activities$656.5 $13.0 $669.5 
Net cash used in investing activities(784.4)(13.0)(797.4)

 Year Ended December 31, 2020
 As reportedAdjustmentAs revised
Consolidated Statements of Income (Loss):
Cost of goods sold$1,107.8 $(0.1)$1,107.7 
Selling, general and administrative expense800.3 (1.5)798.8 
Research and development expense226.6 (8.8)217.8 
Income from operations411.0 10.4 421.3 
Benefit from (provision for) income taxes(1,101.4)(2.4)(1,103.8)
Net income (loss)3,806.3 8.0 3,814.2 
Net income (loss) per basic share127.86 0.27 128.13 
Net income (loss) per diluted share126.20 0.27 126.47 

 Year Ended December 31, 2020
 As reportedAdjustmentAs revised
Consolidated Statement of Cash Flows:
Net cash provided by operating activities$575.3 $9.6 $585.0 
Net cash used in investing activities(60.3)(9.6)(69.9)

In addition, the revision effected prior year amounts disclosed in Note 7, Income Taxes; Note 12, Supplemental Cash Flow Information; Note 15, Segment Information and Note 18 Quarterly Financial Data (Unaudited).