Commitments (Tables)

12 Months Ended

Dec. 31, 2016

Risks and Uncertainties [Abstract]

Schedule of estimated future minimum payments under purchased water supply commitments

GSWC’s estimated future minimum payments under these purchased water supply commitments at December 31, 2016 are as follows (in thousands):

2017	$	409
2018	409
2019	409
2020	409
2021	409
Thereafter	3,225
Total	$	5,270

Schedule of future minimum payments under long-term non-cancelable operating leases

Registrant’s future minimum payments under long-term non-cancelable operating leases at December 31, 2016 are as follows (in thousands):

2017	$	2,451
2018	2,106
2019	1,680
2020	1,347
2021	341
Thereafter	720
Total	$	8,645