Fair Value Measurements - Schedule of Carrying Amount and Estimated Fair Value Of Financial Instruments (Details) - USD ($)
$ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
| Carrying Value |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Loans receivable, net |
$ 43,015
|
$ 47,044
|
| Investment in Master Trust 2014 |
33,512
|
33,535
|
| Revolving credit facilities |
206,500
|
146,300
|
| Convertible Notes, net |
733,412
|
729,814
|
| Estimated Fair Value |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Loans receivable, net |
45,763
|
48,740
|
| Investment in Master Trust 2014 |
34,016
|
33,811
|
| Revolving credit facilities |
215,024
|
146,731
|
| Convertible Notes, net |
747,365
|
740,330
|
| Term loans | Carrying Value |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Loans Payable, net |
413,905
|
419,560
|
| Term loans | Estimated Fair Value |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Loans Payable, net |
445,860
|
424,670
|
| Senior Unsecured Notes | Carrying Value |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Loans Payable, net |
295,882
|
295,767
|
| Senior Unsecured Notes | Estimated Fair Value |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Loans Payable, net |
297,420
|
291,696
|
| Mortgages and Notes Payable | Carrying Value |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Loans Payable, net |
450,534
|
463,196
|
| Mortgages and Notes Payable | Estimated Fair Value |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Loans Payable, net |
$ 479,603
|
$ 487,548
|