Basis of Presentation (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2016 segment	Jun. 30, 2015 USD ($)
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	$ 1,215		$ 2,298
Ranch operations | Expense
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior period reclassification adjustment	$ (1,419)		$ (3,012)