Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loss Contingencies [Line Items]
Rental expense for operating leases	$ 4,295	$ 3,666	$ 2,293
Purchase obligations	$ 117,180
Deere and Company v Bush Hog LLC and Great Plains Manufacturing Inc
Loss Contingencies [Line Items]
Legal fees incurred			$ 2,100