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Long-Term Water Assets - Value of Water Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Components of water assets |  |
Total long-term assets | $ 45,813 | $ 45,157
less: Current portion | (1,351) | (1,351)
Long-term water assets | 44,462 | 43,806
Banked water and water for future delivery |  |
Components of water assets |  |
Total long-term assets | 4,779 | 4,779
Transferable water |  |
Components of water assets |  |
Total long-term assets | 10,110 | 9,117
SWP contracts |  |
Components of water assets |  |
Total long-term assets | $ 30,924 | $ 31,261

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