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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT 2 (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Condensed financial statements |  |  |
Income from operations before income tax expense | $ 94,478 | $ 98,215 | $ 99,106
Net Income | $ 59,743 | $ 60,484 | $ 61,058
Weighted Average Number of Shares Outstanding (in shares) | 36,552 | 37,389 | 38,658
Basic Earnings Per Common Share (in dollars per share) | $ 1.63 | $ 1.61 | $ 1.57
Weighted Average Number of Diluted Common Shares Outstanding | 36,750 | 37,614 | 38,880
Fully Diluted Earnings per Common Share (in dollars per share) | $ 1.62 | $ 1.60 | $ 1.57
Dividends Declared Per Common Share (in dollars per share) | $ 0.914 | $ 0.874 | $ 0.831
AWR |  |  |
Condensed financial statements |  |  |
Operating revenues and other income | $ 71 | $ 98 | $ 81
Operating Expenses and Other Expenses | 19 | 11 | 48
Operating income / (loss) | 52 | 87 | 33
Equity in earnings of subsidiaries | 59,145 | 59,587 | 60,029
Income from operations before income tax expense | 59,197 | 59,674 | 60,062
Income tax expense (benefit) | (546) | (810) | (996)
Net Income | $ 59,743 | $ 60,484 | $ 61,058

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