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Equity (Tables) | 3 Months Ended
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Mar. 31, 2016
Equity [Abstract] |
Summary of changes in equity | A summary of the changes in equity was as follows:
Three Months Ended March 31, 2016 | Total Stockholders' Equity |  | Noncontrolling Interest |  | Total Equity |
| (In thousands)
Balance at December 31, 2015 | $ | 2,396,505 |  | $ | 124,043 |  | $ | 2,520,548 |
Net income (loss) | 24,869 |  | (11,040 | ) | 13,829 |
Other comprehensive loss | (1,434 | ) | — |  | (1,434 | )
Dividends declared on preferred stocks | (171 | ) | — |  | (171 | )
Dividends declared on common stock | (36,620 | ) | — |  | (36,620 | )
Stock-based compensation | 1,065 |  | — |  | 1,065 |
Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings | (316 | ) | — |  | (316 | )
Net tax deficit on stock-based compensation | (1,517 | ) | — |  | (1,517 | )
Balance at March 31, 2016 | $ | 2,382,381 |  | $ | 113,003 |  | $ | 2,495,384 |
Three Months Ended March 31, 2015 | Total Stockholders' Equity |  | Noncontrolling Interest |  | Total Equity |
| (In thousands)
Balance at December 31, 2014 | $ | 3,134,041 |  | $ | 115,743 |  | $ | 3,249,784 |
Net loss | (305,917 | ) | (3,528 | ) | (309,445 | )
Other comprehensive income | 1,179 |  | — |  | 1,179 |
Dividends declared on preferred stocks | (171 | ) | — |  | (171 | )
Dividends declared on common stock | (35,515 | ) | — |  | (35,515 | )
Stock-based compensation | (121 | ) | — |  | (121 | )
Net tax deficit on stock-based compensation | (1,632 | ) | — |  | (1,632 | )
Issuance of common stock | 9,864 |  | — |  | 9,864 |
Contribution from noncontrolling interest | — |  | 20,500 |  | 20,500 |
Balance at March 31, 2015 | $ | 2,801,728 |  | $ | 132,715 |  | $ | 2,934,443 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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