Long-Term Water Assets - Revenues and Cost of Sales (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) acre ft	Mar. 31, 2019 USD ($) acre ft
Goodwill and Intangible Assets Disclosure [Abstract]
Acre-Feet Sold (in acre-feet) \| acre ft	4,625	4,445
Revenues	$ 5,121	$ 5,026
Cost of sales	3,024	3,194
Profit	$ 2,097	$ 1,832

Cost of water purchased, may include any water related assessment. If water is bought on a unit volume basis, would also be considered as commodity costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration