Contingent Matters (Narrative) (Details) (USD $)	12 Months Ended	1 Months Ended
	Dec. 31, 2013 Deere and Company v Bush Hog LLC and Great Plains Manufacturing Inc	Dec. 31, 2012 Unfavorable Litigation Action
Loss Contingencies [Line Items]
Amount of unjust enrichment		$ 1,000,000
Legal fees expensed	$ 2,100,000