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Investments in Unconsolidated Joint Ventures (Statements of Operations of the Joint Ventures) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Schedule of Equity Method Investments [Line Items] |  |  |  |
Total revenue |  | $ 752,556 |  | $ 725,767
Expenses |  |  |  |
Transaction costs |  | 615 |  | 460
Depreciation and amortization |  | 171,094 |  | 164,594
Total expenses |  | 481,187 |  | 475,591
Other income (expense) |  |  |  |
Interest expense |  | (101,591) |  | (101,009)
Net income |  | 577,146 |  | 131,159
Income (loss) from unconsolidated joint ventures |  | (369) |  | 213
Unconsolidated Joint Ventures [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Total revenue | [1] | 93,203 |  | 82,955
Expenses |  |  |  |
Operating |  | 35,401 |  | 30,499
Depreciation and amortization |  | 32,035 |  | 28,646
Total expenses |  | 67,436 |  | 59,145
Other income (expense) |  |  |  |
Interest expense |  | (22,583) |  | (20,757)
Net income |  | 3,184 |  | 3,053
Company's share of net income |  | 1,252 |  | 1,584
Basis differential | [3] | (1,621) | [2] | (1,371)
Income (loss) from unconsolidated joint ventures |  | (369) |  | 213
Straight-line rent adjustments |  | 9,700 |  | 5,800
Colorado Center [Member] |  |  |  |
Other income (expense) |  |  |  |
Straight-line rent adjustments |  | 500 |  | 500
Above and below market rent adjustments, net |  | $ 300 |  | $ 400
[1] | Includes straight-line rent adjustments of approximately $9.7 million and $5.8 million for the three months ended March 31, 2020 and 2019, respectively.
[2] | Includes straight-line rent adjustments of approximately $0.5 million and $0.5 million for the three months ended March 31, 2020 and 2019, respectively. Also includes net above-/below-market rent adjustments of approximately $0.3 million and $0.4 million for the three months ended March 31, 2020 and 2019, respectively.
[3] | Includes straight-line rent adjustments of approximately $0.5 million and $0.5 million for the three months ended March 31, 2020 and 2019, respectively. Also includes net above-/below-market rent adjustments of approximately $0.3 million and $0.4 million for the three months ended March 31, 2020 and 2019, respectively.

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