Debt - Summary of Components of Interest Expense Related to Borrowings (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
| Schedule Of Interest Expenses [Line Items] |
|
|
|
|
| Amortization of deferred financing costs |
$ 1,901
|
$ 1,324
|
$ 3,973
|
$ 2,297
|
| Amortization of net losses related to interest rate swaps |
26
|
33
|
54
|
66
|
| Amortization of debt (premium)/discount |
|
|
1,139
|
(1,043)
|
| Total interest expense |
56,167
|
55,992
|
114,081
|
110,391
|
| Revolving Credit Facilities |
|
|
|
|
| Schedule Of Interest Expenses [Line Items] |
|
|
|
|
| Interest expense |
586
|
1,100
|
1,389
|
1,820
|
| Mortgages and Notes Payable |
|
|
|
|
| Schedule Of Interest Expenses [Line Items] |
|
|
|
|
| Interest expense |
46,863
|
50,778
|
95,271
|
104,374
|
| Convertible Notes |
|
|
|
|
| Schedule Of Interest Expenses [Line Items] |
|
|
|
|
| Interest expense |
6,128
|
2,871
|
12,255
|
2,871
|
| Other Interest Expense |
|
|
|
|
| Schedule Of Interest Expenses [Line Items] |
|
|
|
|
| Interest expense |
0
|
0
|
0
|
6
|
| Interest Expense |
|
|
|
|
| Schedule Of Interest Expenses [Line Items] |
|
|
|
|
| Amortization of debt (premium)/discount |
$ 663
|
$ (114)
|
$ 1,139
|
$ (1,043)
|