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Equity - Changes in Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance at beginning of period (in shares) | 57,724,000 |
Balance at beginning of period | $ 1,430,312 | $ 1,322,394
Net income (loss) | 69,690 | (22,334)
Issuance of common stock | 1,507 | 17,384
Repurchase of common stock | (1,142) | 0
Dividends paid on common stock | (16,164) | (14,456)
Adjustment for unrecoverable pension benefit plan costs | (13,663) |
Amounts reclassified to earnings | 297 |
Investment in business with noncontrolling interest | $ 0 | 0
Balance at end of period (in shares) | 57,754,000 |
Balance at end of period | $ 1,470,837 | $ 1,302,988
Dividends paid on common stock (in dollars per share) | $ 0.2800 | $ 0.2600
Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance at beginning of period (in shares) | 57,724,000 | 55,598,000
Balance at beginning of period | $ 577 | $ 556
Issuance of common stock (in shares) | 55,000 | 420,000
Issuance of common stock | $ 1 | $ 4
Repurchase of common stock (in shares) | (25,000) | (27,000)
Balance at end of period (in shares) | 57,754,000 | 55,991,000
Balance at end of period | $ 578 | $ 560
Additional Paid-in Capital |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance at beginning of period | 876,583 | 760,336
Issuance of common stock | 1,506 | 17,380
Repurchase of common stock | (1,142) |
Investment in business with noncontrolling interest | (53) | (111)
Balance at end of period | 876,894 | 777,605
Retained Earnings |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance at beginning of period | 549,573 | 556,698
Net income (loss) | 69,917 | (22,211)
Dividends paid on common stock | (16,164) | (14,456)
Balance at end of period | 603,326 | 520,031
Accumulated Other Comprehensive Loss |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance at beginning of period | 0 |
Adjustment for unrecoverable pension benefit plan costs | (13,663) |
Amounts reclassified to earnings | 297 |
Balance at end of period | (13,366) |
Noncontrolling Interests |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance at beginning of period | 3,579 | 4,804
Net income (loss) | (227) | (123)
Investment in business with noncontrolling interest | 53 | 111
Balance at end of period | $ 3,405 | $ 4,792

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