Basis of Presentation (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2016 segment	Sep. 30, 2015 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of reportable segments | segment		5
Ranch operations | Revenue
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior period reclassification adjustment	$ 447		$ 2,745
Ranch operations | Expense
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior period reclassification adjustment	$ (1,674)		$ (4,686)