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Pay vs Performance Disclosure - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Oct. 01, 2022
Sep. 30, 2023
Oct. 01, 2022
Pay vs Performance Disclosure        
Numerator for both basic and diluted EPS attributable to HNI Corporation net income $ 37.8 $ 63.1 $ 26.5 $ 107.6