Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	$ 122,798	$ 126,785
Pipeline rights and water credits at Fish Springs Ranch
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	83,884	83,897
Pipeline rights and water rights at Carson-Lyon
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	21,642	25,569
Other
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	$ 17,272	$ 17,319