Texas Water Alliance Limited	6 Months Ended
Jun. 30, 2017
Equity Method Investments and Joint Ventures [Abstract]
Texas Water Alliance Limited	On February 22, 2016, SJW Group entered into a purchase and sale agreement (“PSA”) with the Guadalupe-Blanco River Authority (“GBRA”), pursuant to which SJW Group agreed to sell all of its equity interests in its wholly owned subsidiary Texas Water Alliance Limited to GBRA for $31,000 in cash. Pursuant to the PSA, upon closing of the transaction, GBRA will hold back $3,000 (the “Holdback Amount”) in the payment of the total purchase price. Pursuant to an amendment agreement entered into by SJW Group and GBRA on June 22, 2017, (i) if closing occurs, GBRA will pay the Holdback Amount to SJW Group on June 30, 2021 subject to reductions under certain circumstances, and (ii) the $3,000 previously deposited in escrow by GBRA was distributed to SJW Group on June 23, 2017 and is classified as a non-refundable deposit on the consolidated balance sheets as of June 30, 2017 (the “Deposit Amount”). If closing occurs, the Deposit Amount will be credited against the $31,000 purchase price. The PSA is subject to the completion of financing by GBRA to fund the purchase price and other customary closing conditions. There is no assurance that the closing conditions will be satisfied in a timely manner, or at all.

On February 22, 2016, SJW Group entered into a purchase and sale agreement (“PSA”) with the Guadalupe-Blanco River Authority (“GBRA”), pursuant to which SJW Group agreed to sell all of its equity interests in its wholly owned subsidiary Texas Water Alliance Limited to GBRA for $31,000 in cash. Pursuant to the PSA, upon closing of the transaction, GBRA will hold back $3,000 (the “Holdback Amount”) in the payment of the total purchase price. Pursuant to an amendment agreement entered into by SJW Group and GBRA on June 22, 2017, (i) if closing occurs, GBRA will pay the Holdback Amount to SJW Group on June 30, 2021 subject to reductions under certain circumstances, and (ii) the $3,000 previously deposited in escrow by GBRA was distributed to SJW Group on June 23, 2017 and is classified as a non-refundable deposit on the consolidated balance sheets as of June 30, 2017 (the “Deposit Amount”). If closing occurs, the Deposit Amount will be credited against the $31,000 purchase price. The PSA is subject to the completion of financing by GBRA to fund the purchase price and other customary closing conditions. There is no assurance that the closing conditions will be satisfied in a timely manner, or at all.