Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Commitments And Contingencies [Abstract]

Schedule Of Purchase Obligations

	2020		2021		2022		2023		2024		Thereafter
$	1,002	$	1,022	$	1,043	$	1,050	$	1,068	$	4,291

Schedule Of Rent Expense Under Operating Leases

	Years Ended December 31,
	2019		2018		2017
Purchased water under long-term agreements	$	6,577	$	6,065	$	8,558
Water treatment expense under contractual agreement		989		970		945