Additional Balance Sheet And Cash Flow Information (Inventories, Net) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Aug. 06, 2010
Additional Balance Sheet And Cash Flow Information [Abstract]
Raw materials and work in process	$ 111,335,000	$ 113,932,000
Motorcycle finished goods	205,660,000	226,261,000
Parts and accessories and general merchandise	122,418,000	121,340,000
Inventory at lower of FIFO cost or market	439,413,000	461,533,000
Excess of FIFO over LIFO cost	(45,889,000)	(43,527,000)
Inventories, net	393,524,000	418,006,000	4,000,000
Obsolescence reserves deducted from FIFO cost	$ 22,900,000	$ 24,800,000