Basis of Presentation (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 segment	Mar. 31, 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		$ 1,083
Ranch operations | Expense
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior period reclassification adjustment		$ (1,593)