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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2018
Accounting Policies [Abstract] |
Reconciliation Of Net Income Attributable To Common Stockholders To Estimated Taxable Income | The following table reconciles our net income to estimated taxable income for the years ended December 31, 2018, 2017 and 2016.
(Unaudited and in thousands) | Year Ended December 31,
| 2018 |  | 2017 |  | 2016
Net income | $ | 32,844 |  |  | $ | 80,509 |  |  | $ | 86,477 |
Straight-line rent adjustments | 5,870 |  |  | 4,250 |  |  | 2,347 |
Depreciation and amortization timing differences | (6,586 | ) |  | 3,084 |  |  | (14,534 | )
Change in fair value of marketable securities (see Note 5) | 11,990 |  |  | — |  |  | — |
Loss from discontinued operations (see Note 6) | 23,797 |  |  | — |  |  | — |
Other | 440 |  |  | (343 | ) |  | 2,975 |
Estimated taxable income | $ | 68,355 |  |  | $ | 87,500 |  |  | $ | 77,265 |

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