Investments - Narrative (Details)
|
3 Months Ended |
9 Months Ended |
|
|
Sep. 30, 2016
USD ($)
State
Property
loan
|
Sep. 30, 2015
USD ($)
|
Sep. 30, 2016
USD ($)
State
Property
loan
renewal_option
|
Sep. 30, 2015
USD ($)
|
Dec. 31, 2015
USD ($)
Property
loan
|
| Investment [Line Items] |
|
|
|
|
|
| Gross investment in real estate properties and loans |
$ 8,388,494,000
|
|
$ 8,388,494,000
|
|
$ 8,302,688,000
|
| Number of real estate properties | Property |
2,705
|
|
2,705
|
|
2,629
|
| Number of properties securing mortgage loans | Property |
75
|
|
75
|
|
|
| Portfolio disbursement, number of states | State |
49
|
|
49
|
|
|
| Minimum percentage of investment in real estate properties |
10.00%
|
|
10.00%
|
|
|
| Number of other notes receivable | loan |
|
|
2
|
|
|
| Allowance for loan losses |
$ 0
|
|
$ 0
|
|
$ 300,000
|
| Amortization amount to rental revenue for capitalized leases |
1,800,000
|
$ 1,500,000
|
4,700,000
|
$ 4,300,000
|
|
| In-Place Leases |
|
|
|
|
|
| Investment [Line Items] |
|
|
|
|
|
| Leases amortization expenses |
11,600,000
|
$ 12,400,000
|
35,100,000
|
$ 37,800,000
|
|
| Secured Debt |
|
|
|
|
|
| Investment [Line Items] |
|
|
|
|
|
| Notes receivable |
$ 3,800,000
|
|
$ 3,800,000
|
|
|
| Minimum |
|
|
|
|
|
| Investment [Line Items] |
|
|
|
|
|
| Number of lease renewal options | renewal_option |
|
|
1
|
|
|
| Texas |
|
|
|
|
|
| Investment [Line Items] |
|
|
|
|
|
| Number of states exceeding disclosure threshold | State |
|
|
1
|
|
|
| Percentage of investment in real estate properties |
12.30%
|
|
12.30%
|
|
|
| Mortgages |
|
|
|
|
|
| Investment [Line Items] |
|
|
|
|
|
| Receivables on nonaccrual status | loan |
0
|
|
0
|
|
0
|
| Notes Receivable |
|
|
|
|
|
| Investment [Line Items] |
|
|
|
|
|
| Allowance for loan losses |
$ 0
|
|
$ 0
|
|
$ 324,000
|
| Receivables on nonaccrual status | loan |
0
|
|
0
|
|
1
|
| Loans on non-accrual status |
|
|
|
|
$ 300,000
|