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Earnings per Share/Capital Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Capital stock |  |
Options outstanding (in shares) | 0 | 0
Sale of stock, number of shares issued in transaction (in shares) | 334,548 | 227,981
Sale of stock, consideration received on transaction | $ 25,800 | $ 16,200
Payments for commissions | $ 400 | $ 200
Issuances of Common Shares under stock-based compensation plans (in shares) | 23,014 | 20,290
Payment, tax withholding, share-based payment arrangement | $ 1,301 | $ 1,111
Dividends paid | $ 17,762 | $ 15,905
Dividends declared per common share (in dollars per share) | $ 0.4655 | $ 0.4300
AWR |  |
Capital stock |  |
Dividends paid | $ 17,800 | $ 15,900
GSWC |  |
Capital stock |  |
Payment, tax withholding, share-based payment arrangement | $ 1,174 | $ 1,040
Restricted Stock |  |
Capital stock |  |
Restricted stock units outstanding (in shares) | 153,583 | 128,668

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