SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT - Basis of Presentation Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jun. 05, 2024	Nov. 06, 2023	Jan. 13, 2023	Apr. 22, 2022
Note payable to banks
Line of credit facility, current borrowing capacity						$ 165,000
Exercise of stock options and other issuance of Common Shares		25,196	18,371	25,956
Issuance of Common Shares from an at-the-market program, net of issuance costs		$ 88,661
Issuance of Common Shares from an at-the-market program, net of issuance costs		$ 88,661
GSWC
Note payable to banks
Exercise of stock options and other issuance of Common Shares		2.7586	1	0
Issuance of Common Shares under stock-based compensation plans ( in shares)		$ 40,000	$ 10,000
Debt Instrument, Face Amount							$ 130,000
Issuance of Common Shares from an at-the-market program, net of issuance costs		40,000	10,000
Issuance of Common Shares from an at-the-market program, net of issuance costs		$ 40,000	$ 10,000
BVES
Note payable to banks
Exercise of stock options and other issuance of Common Shares	11
Issuance of Common Shares from an at-the-market program, net of issuance costs	$ 22,000
Issuance of Common Shares from an at-the-market program, net of issuance costs	$ 22,000
Common Stock
Note payable to banks
Exercise of stock options and other issuance of Common Shares		1,145,000
Issuance of Common Shares from an at-the-market program, net of issuance costs		$ 88,661
Issuance of Common Shares from an at-the-market program, net of issuance costs		$ 88,661
Common Stock | GSWC
Note payable to banks
Exercise of stock options and other issuance of Common Shares		2.7586	1.0000
Issuance of Common Shares under stock-based compensation plans ( in shares)		$ 40,000
Issuance of Common Shares from an at-the-market program, net of issuance costs			$ 10,000
Issuance of Common Shares from an at-the-market program, net of issuance costs			$ 10,000
Unsecured Private Placement Notes | GSWC
Note payable to banks
Debt Instrument, Face Amount					$ 65,000		$ 130,000
Maximum | Revolving Credit Facility
Note payable to banks
Line of credit facility, current borrowing capacity								$ 280,000