Investment in Rental Property and Lease Arrangements - Summary of Depreciation Expense on Investment in Rental Property (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
|
| Leases [Abstract] | ||||
| Depreciation | $ 23,560 | $ 19,532 | $ 47,075 | $ 38,285 |