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Debt - Schedule of Debt Maturities of Company's Revolving Credit Facilities, Mortgages and Notes Payable, Including Balloon Payments (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
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|---|---|---|
| Scheduled Principal Payments For Borrowings [Line Items] | ||
| Total debt, net | $ 4,369,634 | $ 3,778,218 |
| Mortgages and Notes Payable [Member] | ||
| Scheduled Principal Payments For Borrowings [Line Items] | ||
| 2015 | 352,924 | |
| 2016 | 319,212 | |
| 2017 | 869,644 | |
| 2018 | 292,601 | |
| 2019 | 497,771 | |
| Thereafter | 2,089,068 | |
| Total debt, net | 4,421,220 | |
| Mortgages and Notes Payable [Member] | Scheduled Principal [Member] | ||
| Scheduled Principal Payments For Borrowings [Line Items] | ||
| 2015 | 31,552 | |
| 2016 | 30,167 | |
| 2017 | 29,667 | |
| 2018 | 43,750 | |
| 2019 | 45,771 | |
| Thereafter | 289,752 | |
| Total debt, net | 470,659 | |
| Mortgages and Notes Payable [Member] | Balloon Payment [Member] | ||
| Scheduled Principal Payments For Borrowings [Line Items] | ||
| 2015 | 321,372 | |
| 2016 | 289,045 | |
| 2017 | 839,977 | |
| 2018 | 248,851 | |
| 2019 | 452,000 | |
| Thereafter | 1,799,316 | |
| Total debt, net | $ 3,950,561 |