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Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 04, 2021 | May 05, 2021 | Feb. 25, 2021 | May 07, 2020 | Mar. 05, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |
Payments of dividends |  |  |  |  |  |  |  | $ 58,049 | $ 53,323 |
Accumulated deficit |  |  |  |  |  | $ (3,724,139) |  | $ (3,724,139) |  | $ (3,491,069)
Common Stock |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |
Cash dividends declared per common share (in dollars per share) |  | $ 0.035 | $ 0.035 | $ 0.035 | $ 0.035 |  |  | $ 0.070 | $ 0.070 |
Common Stock | Subsequent Event |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |
Cash dividends declared per common share (in dollars per share) | $ 0.035 |  |  |  |  |  |  |  |  |
Interest Expense |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net |  |  |  |  |  | 54,000 |  | $ 54,000 |  |
Interest Expense | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax |  |  |  |  |  | 15,000 | $ 11,000 | 30,000 | $ 16,000 |
Income Tax Expense (Benefit) | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax |  |  |  |  |  | $ (4,000) | $ (3,000) | $ (7,000) | $ (4,000) |

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