Regulatory Decision and Related Accounting and Policy Changes (Tables)

12 Months Ended

Dec. 31, 2019

Regulated Operations [Abstract]

Summary of Collective Revenue Requirement Phased-in Over Time

For the Company’s utilities, adjusting for the condemnation of the operations and assets of Valencia and sale of Willow Valley Water Co., Inc. ("Willow Valley"), which occurred in 2015 and 2016, respectively, a collective revenue requirement increase of $3.6 million based on 2011 test year service connections, phased-in over time, with the first increase in January 2015 as follows (in thousands, not updated for the TCJA, refer to Note 1 — "Basis of Presentation, Corporate Transactions, Significant Accounting Policies, and Recent Accounting Pronouncements — Corporate Transactions — ACC Tax Docket" for further details):

	Incremental		Cumulative
2015	$	1,083	$	1,083
2016	887		1,970
2017	335		2,305
2018	335		2,640
2019	335		2,975
2020	335		3,310
2021	335		3,645