Schedule III - Change in Real Estate Assets (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Real Estate And Accumulated Depreciation Disclosure [Abstract] | |||
| Balance, beginning of period | $ 2,848,735 | $ 2,334,524 | $ 1,743,403 |
| Acquisitions and building improvements | 984,760 | 568,036 | 640,961 |
| Dispositions | (143,688) | (51,950) | (47,181) |
| Impairment | (3,363) | (1,875) | (2,659) |
| Balance, end of period | $ 3,686,444 | $ 2,848,735 | $ 2,334,524 |