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Equity (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Increase decrease in stockholders equity roll forward |  |  |  |
Total Equity |  |  | $ 2,316,244 |
Net income (loss) | $ 87,351 | $ 82,986 | 165,891 | $ (132,988)
Other comprehensive income (loss) | 448 | 315 | 392 | (743)
Dividends declared on preferred stocks |  |  | (171) | (514)
Dividends declared on common stock |  |  | (112,788) | (109,858)
Stock-based compensation |  |  | 2,390 | 2,955
Repurchase of common stock |  |  | (1,684) |
Total Parent equity | $ 2,353,917 | $ 2,285,061 | 2,353,917 | $ 2,285,061
Common stock [Member] |  |  |  |
Increase decrease in stockholders equity roll forward |  |  |  |
Redemption of preferred stock |  |  | (757) |
Preferred stock [Member] |  |  |  |
Increase decrease in stockholders equity roll forward |  |  |  |
Redemption of preferred stock |  |  | $ (15,600) |

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