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Selected Quarterly Data (unaudited)
 12 Months Ended
Dec. 31, 2022
Quarterly Financial Information Disclosure [Abstract]  
Selected Quarterly Data (unaudited) Selected Quarterly Data (unaudited)
The following tables present 2022 and 2021 quarterly financial information for continuing operations:
2022
In millions, except per-share dataFirst QuarterSecond QuarterThird QuarterFourth QuarterFull Year
Net sales$97.0 $109.5 $100.2 $116.7 $423.4 
Gross profit24.2 25.7 23.2 21.9 95.0 
Operating income10.6 12.6 11.6 10.0 44.8 
Net income from continuing operations7.7 9.6 8.5 6.2 32.0 
Earnings per ordinary share(1)
Basic earnings per ordinary share from continuing operations$0.28 $0.35 $0.31 $0.23 $1.17 
Diluted earnings per ordinary share from continuing operations0.28 0.35 0.31 0.23 1.16 
2021
In millions, except per-share dataFirst QuarterSecond QuarterThird QuarterFourth QuarterFull Year
Net sales$85.2 $99.0 $91.2 $98.7 $374.1 
Gross profit25.2 25.9 21.1 23.8 $96.0 
Operating income11.1 11.5 8.1 5.5 $36.2 
Net income from continuing operations8.6 11.9 6.0 3.5 $30.0 
Earnings per ordinary share(1)
Basic earnings per ordinary share from continuing operations$0.31 $0.43 $0.22 $0.13 $1.08 
Diluted earnings per ordinary share from continuing operations0.31 0.42 0.21 0.13 1.07 
(1)     Amounts may not total to annual earnings because each quarter and year are calculated separately based on basic and diluted weighted-average ordinary shares outstanding during the period.