Investments - Summary of Owned Real Estate Activity (Footnote) (Details)
$ in Thousands |
9 Months Ended |
|
|
Sep. 30, 2019
USD ($)
Property
|
Dec. 31, 2018
USD ($)
|
| Real Estate [Line Items] |
|
|
| Revenue producing capitalized expenditures |
$ 30,200
|
|
| Capitalized maintenance expenditures |
$ 4,900
|
|
| Number of properties acquired through sales-leaseback transactions | Property |
62
|
|
| Investment amount from sale-leaseback transaction |
$ 418,500
|
|
| Held in Use land and buildings, net of accumulated depreciation |
4,592,169
|
$ 4,136,261
|
| Intangible lease assets, net |
311,597
|
294,463
|
| Real estate assets under direct financing leases, net |
14,478
|
|
| Real estate assets held for sale, net |
5,518
|
18,203
|
| Intangible lease liabilities, net |
(116,515)
|
$ (120,162)
|
| Net balance |
4,807,247
|
|
| Held-in-use |
|
|
| Real Estate [Line Items] |
|
|
| Gain on disposal of assets for properties |
38,800
|
|
| Held-for-sale |
|
|
| Real Estate [Line Items] |
|
|
| Gain on disposal of assets for properties |
$ 32,000
|
|
| Deed-In-Lieu Properties |
|
|
| Real Estate [Line Items] |
|
|
| Number of properties disposed | Property |
1
|
|
| Amount of disposition of real estate |
$ 800
|
|