Summary of Significant Accounting Policies - Inventories and Property (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Land and Other Inventories
Land and other inventories, impairment assessment		$ 0	$ 228	$ 0
Maximum
Land and Other Inventories
Land and other inventories, impairment assessment	$ 100
Land Improvements | Minimum
Property and Equipment, net
Estimated useful lives			10 years
Land Improvements | Maximum
Property and Equipment, net
Estimated useful lives			25 years
Building and Improvements | Minimum
Property and Equipment, net
Estimated useful lives			8 years
Building and Improvements | Maximum
Property and Equipment, net
Estimated useful lives			39 years
Machinery, Equipment and Fixtures | Minimum
Property and Equipment, net
Estimated useful lives			3 years
Machinery, Equipment and Fixtures | Maximum
Property and Equipment, net
Estimated useful lives			7 years