Earnings Per Share - Schedule of Reconciliation of Earnings Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Numerator:
Net income attributable to Harley-Davidson, Inc.	$ 107,569	$ 218,269	$ 240,673	$ 453,210
Weighted Average Number of Shares Outstanding Reconciliation
Basic weighted-average shares outstanding (in shares)	121,521	133,412	122,727	134,759
Effect of dilutive securities – employee stock compensation plan (in shares)	682	697	730	754
Diluted weighted-average shares outstanding (in shares)	122,203	134,109	123,457	135,513
Net earnings per share:
Basic (in dollars per share)	$ 0.89	$ 1.64	$ 1.96	$ 3.36
Diluted (in dollars per share)	$ 0.88	$ 1.63	$ 1.95	$ 3.34