Investments - Summary of Real Estate and Loan Activity, Net of Accumulated Depreciation and Amortization (Details)
$ in Thousands |
3 Months Ended |
|
Mar. 31, 2018
USD ($)
Property
|
|---|
| Number of Properties |
|
| Gross balance, beginning balance (in properties) | Property |
2,480
|
| Acquisitions/improvements (in properties) | Property |
1
|
| Dispositions of real estate (in properties) | Property |
(35)
|
| Principal payments and payoffs (in properties) | Property |
0
|
| Impairments (in properties) | Property |
0
|
| Write-off of gross lease intangibles (in properties) | Property |
0
|
| Loan premium amortization and other (in properties) | Property |
0
|
| Gross balance, ending balance (in properties) | Property |
2,446
|
| Dollar Amount of Investments |
|
| Gross balance, beginning balance |
$ 7,903,025
|
| Acquisitions/improvements |
47,612
|
| Dispositions of real estate |
(46,349)
|
| Principal payments and payoffs |
(4,279)
|
| Impairments |
(14,569)
|
| Write-off of gross lease intangibles |
(36,105)
|
| Loan premium amortization and other |
(346)
|
| Gross balance, ending balance |
7,848,989
|
| Accumulated depreciation and amortization |
(1,304,677)
|
| Other |
125
|
| Net balance, ending balance |
$ 6,544,437
|
| Owned Properties |
|
| Number of Properties |
|
| Gross balance, beginning balance (in properties) | Property |
2,392
|
| Acquisitions/improvements (in properties) | Property |
1
|
| Dispositions of real estate (in properties) | Property |
(29)
|
| Principal payments and payoffs (in properties) | Property |
0
|
| Impairments (in properties) | Property |
0
|
| Write-off of gross lease intangibles (in properties) | Property |
0
|
| Loan premium amortization and other (in properties) | Property |
0
|
| Gross balance, ending balance (in properties) | Property |
2,364
|
| Dollar Amount of Investments |
|
| Gross balance, beginning balance |
$ 7,823,058
|
| Acquisitions/improvements |
12,612
|
| Dispositions of real estate |
(46,349)
|
| Principal payments and payoffs |
0
|
| Impairments |
(14,569)
|
| Write-off of gross lease intangibles |
(36,105)
|
| Loan premium amortization and other |
(720)
|
| Gross balance, ending balance |
7,737,927
|
| Accumulated depreciation and amortization |
(1,304,677)
|
| Other |
125
|
| Net balance, ending balance |
$ 6,433,375
|
| Financed Properties |
|
| Number of Properties |
|
| Gross balance, beginning balance (in properties) | Property |
88
|
| Acquisitions/improvements (in properties) | Property |
0
|
| Dispositions of real estate (in properties) | Property |
(6)
|
| Principal payments and payoffs (in properties) | Property |
0
|
| Impairments (in properties) | Property |
0
|
| Write-off of gross lease intangibles (in properties) | Property |
0
|
| Loan premium amortization and other (in properties) | Property |
0
|
| Gross balance, ending balance (in properties) | Property |
82
|
| Dollar Amount of Investments |
|
| Gross balance, beginning balance |
$ 79,967
|
| Acquisitions/improvements |
35,000
|
| Dispositions of real estate |
0
|
| Principal payments and payoffs |
(4,279)
|
| Impairments |
0
|
| Write-off of gross lease intangibles |
0
|
| Loan premium amortization and other |
374
|
| Gross balance, ending balance |
111,062
|
| Accumulated depreciation and amortization |
0
|
| Other |
0
|
| Net balance, ending balance |
$ 111,062
|