Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.6.0.2
Basis of Presentation (Details)
a in Thousands
3 Months Ended
Oct. 01, 2015
segment
Dec. 31, 2016
USD ($)
a
classification
segment
Dec. 31, 2015
USD ($)
Property, Plant and Equipment [Line Items]      
Number of business segments | segment 3 3  
Ownership interest (as a percent)   51.00% 51.00%
Citree      
Property, Plant and Equipment [Line Items]      
Net loss attributable to noncontrolling interest | $   $ 15,848 $ 16,018
Land      
Property, Plant and Equipment [Line Items]      
Area of land owned (in acres)   122  
Number of primary classifications | classification   2  
Mineral Rights      
Property, Plant and Equipment [Line Items]      
Area of land owned (in acres)   90