Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions		Total	Common Stock	Additional Paid- In Capital	Retained Earnings	Accumulated Other Comprehensive Income (loss)	Non Controlling Interest
Beginning balance (in shares) at Dec. 31, 2019			61.4
Beginning balance at Dec. 31, 2019		$ 1,108.2	$ 0.6	$ 892.8	$ 287.3	$ (72.7)	$ 0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation (in shares)			0.4
Employee stock compensation		11.9		11.9
Deferred compensation		6.9		(0.5)	7.4
Proceeds from stock issuances under employee plans (in shares)			0.0
Proceeds from stock issuances under employee plans		2.3	$ 0.0	2.3
Cash dividends declared	[1]	(38.0)			(38.0)
Repurchase and retirement of common shares (in shares)			(0.6)
Repurchase and retirement of common shares		(48.8)	$ 0.0	(8.1)	(40.7)
Net income (loss)		(5.4)			(5.4)
Other comprehensive loss		(35.3)				(35.3)
Ending balance (in shares) at Mar. 31, 2020			61.2
Ending balance at Mar. 31, 2020		1,001.8	$ 0.6	898.4	210.6	(108.0)	0.2
Beginning balance (in shares) at Dec. 31, 2020			61.9
Beginning balance at Dec. 31, 2020		1,144.8	$ 0.6	983.9	218.4	(58.4)	0.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation (in shares)			0.3
Employee stock compensation		8.9	$ 0.0	8.9
Deferred compensation		(5.6)		(0.5)	(5.1)
Proceeds from stock issuances under employee plans (in shares)			1.5
Proceeds from stock issuances under employee plans		129.3		129.3
Cash dividends declared	[1]	$ (38.6)			(38.6)
Repurchase and retirement of common shares (in shares)		(2.5)	(2.5)
Repurchase and retirement of common shares		$ (299.1)	$ 0.0	(39.1)	(260.0)
Net income (loss)		134.2			134.1		0.1
Contributions		1.2					1.2
Other comprehensive loss		(14.1)				(14.1)
Ending balance (in shares) at Mar. 31, 2021			61.2
Ending balance at Mar. 31, 2021		$ 1,061.0	$ 0.6	$ 1,082.5	$ 48.8	$ (72.5)	$ 1.6

[1] Polaris Inc. declared a $0.63 dividend per share for the three month period ended March 31, 2021 and a $0.62 dividend per share for the three month period ended March 31, 2020.