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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward] |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 5,517,198 | $ 5,947,855 | $ 6,589,454 | $ 5,517,198 | $ 5,947,855 | $ 7,750,911
Other comprehensive (loss) income before reclassifications | (43,495) | (2,304) | (2,733) |  |  |
Amounts reclassified from accumulated other comprehensive loss | (98) | (1,192) | (800) |  |  |
Ending Balance | 5,517,198 | 5,947,855 | 6,589,454 |  |  |
Deferred net losses from terminated hedges |  |  |  | (700) | 1,300 |
Net unrealized (loss) gain on derivative instruments |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward] |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (22,780) | 9,716 | 12,542 | (22,780) | 9,716 | 12,596
Other comprehensive (loss) income before reclassifications | (32,723) | (2,252) | (1,618) |  |  |
Amounts reclassified from accumulated other comprehensive loss | 227 | (574) | 1,564 |  |  |
Ending Balance | (22,780) | 9,716 | 12,542 |  |  |
Net unrealized gain on marketable securities |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward] |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 2,277 | 1,093 | 1,042 | 2,277 | 1,093 | 5,520
Other comprehensive (loss) income before reclassifications | 1,184 | 51 | (1,348) |  |  |
Amounts reclassified from accumulated other comprehensive loss | 0 | 0 | (3,130) |  |  |
Ending Balance | 2,277 | 1,093 | 1,042 |  |  |
Accumulated Other Comprehensive Income |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward] |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (28,485) | 15,108 | 18,604 | (28,485) | 15,108 | 22,137
Ending Balance | (28,485) | 15,108 | 18,604 |  |  |
Joint venture | Net unrealized (loss) gain on derivative instruments |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward] |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (7,982) | 4,299 | 5,020 | $ (7,982) | $ 4,299 | $ 4,021
Other comprehensive (loss) income before reclassifications | (11,956) | (103) | 233 |  |  |
Amounts reclassified from accumulated other comprehensive loss | (325) | (618) | 766 |  |  |
Ending Balance | $ (7,982) | $ 4,299 | $ 5,020 |  |  |

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