Revenue Recognition (Contract Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue	$ 1,502,532	$ 2,800,005
ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	990,841	1,823,405
Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	171,412	302,969
Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	113,418	226,745
Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	226,861	446,886
Wholegoods
Disaggregation of Revenue [Line Items]
Revenue	1,061,071	1,950,694
Wholegoods | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	820,850	1,504,353
Wholegoods | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	146,671	260,779
Wholegoods | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	93,550	185,562
Wholegoods | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	0	0
PG&A
Disaggregation of Revenue [Line Items]
Revenue	441,461	849,311
PG&A | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	169,991	319,052
PG&A | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	24,741	42,190
PG&A | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	19,868	41,183
PG&A | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	226,861	446,886
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	1,197,191	2,204,731
UNITED STATES | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	818,318	1,480,913
UNITED STATES | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	113,561	197,458
UNITED STATES | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	49,740	99,794
UNITED STATES | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	215,572	426,566
CANADA
Disaggregation of Revenue [Line Items]
Revenue	100,850	179,945
CANADA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	68,576	126,331
CANADA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	10,769	17,709
CANADA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	10,216	15,585
CANADA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	11,289	20,320
EMEA
Disaggregation of Revenue [Line Items]
Revenue	148,468	310,988
EMEA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	64,632	143,561
EMEA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	31,667	58,338
EMEA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	52,169	109,089
EMEA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	0	0
APLA
Disaggregation of Revenue [Line Items]
Revenue	56,023	104,341
APLA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	39,315	72,600
APLA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	15,415	29,464
APLA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	1,293	2,277
APLA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0