Revenue Recognition - Contract Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 1,959.5	$ 1,954.6	$ 6,027.8	$ 4,871.6
ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	1,208.3	1,288.8	3,754.8	3,065.4
Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	194.4	166.9	571.7	434.8
Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	146.5	106.6	425.4	282.8
Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	226.7	237.2	696.0	646.8
Boats
Disaggregation of Revenue [Line Items]
Revenue	183.6	155.1	579.9	441.8
Wholegoods
Disaggregation of Revenue [Line Items]
Revenue	1,391.1	1,400.9	4,324.1	3,437.5
Wholegoods | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	924.8	1,022.0	2,920.5	2,404.0
Wholegoods | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	162.7	137.7	480.8	365.8
Wholegoods | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	120.0	86.1	342.9	225.9
Wholegoods | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.0	0.0
Wholegoods | Boats
Disaggregation of Revenue [Line Items]
Revenue	183.6	155.1	579.9	441.8
PG&A
Disaggregation of Revenue [Line Items]
Revenue	568.4	553.7	1,703.7	1,434.1
PG&A | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	283.5	266.8	834.3	661.4
PG&A | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	31.7	29.2	90.9	69.0
PG&A | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	26.5	20.5	82.5	56.9
PG&A | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	226.7	237.2	696.0	646.8
PG&A | Boats
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.0	0.0
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	1,569.6	1,641.4	4,754.8	4,049.2
UNITED STATES | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	958.8	1,090.5	2,949.4	2,568.8
UNITED STATES | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	132.9	120.2	361.6	288.2
UNITED STATES | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	84.4	52.9	216.6	140.5
UNITED STATES | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	215.9	224.9	665.0	617.7
UNITED STATES | Boats
Disaggregation of Revenue [Line Items]
Revenue	177.6	152.9	562.2	434.0
CANADA
Disaggregation of Revenue [Line Items]
Revenue	143.8	110.4	427.8	248.0
CANADA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	116.9	89.6	351.9	194.4
CANADA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	9.8	6.1	25.4	14.9
CANADA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	0.3	0.2	2.0	1.8
CANADA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	10.8	12.3	31.0	29.1
CANADA | Boats
Disaggregation of Revenue [Line Items]
Revenue	6.0	2.2	17.5	7.8
EMEA
Disaggregation of Revenue [Line Items]
Revenue	168.9	145.7	599.3	411.3
EMEA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	80.0	71.2	282.6	196.0
EMEA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	29.2	21.6	116.4	77.5
EMEA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	59.7	52.9	200.1	137.8
EMEA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.0	0.0
EMEA | Boats
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.2	0.0
APLA
Disaggregation of Revenue [Line Items]
Revenue	77.2	57.1	245.9	163.1
APLA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	52.6	37.5	170.9	106.2
APLA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	22.5	19.0	68.3	54.2
APLA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	2.1	0.6	6.7	2.7
APLA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.0	0.0
APLA | Boats
Disaggregation of Revenue [Line Items]
Revenue	$ 0.0	$ 0.0	$ 0.0	$ 0.0