|
Financial Instruments and Fair Value Measurements - Summary of Gains (Losses) From Change in Fair Value of Derivative Instruments Included in Other Comprehensive Income (Loss) (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Sep. 30, 2013
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Total gain (loss) on derivative instruments | $ 88,989 | $ (21,038) | $ 62,609 | $ 32,234 |
| Total gain (loss) on derivative and non-derivative instruments | 293,239 | (21,038) | 277,179 | 32,234 |
|
Derivative Net Investment Hedges [Member]
|
||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Total gain (loss) on derivative instruments | 93,502 | (23,801) | 70,393 | 10,395 |
|
Interest Rate Swap Hedges [Member]
|
||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Total gain (loss) on derivative instruments | (39) | (821) | (229) | 71 |
|
Our Share of Derivatives from Unconsolidated Co-Investment Ventures [Member]
|
||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Total gain (loss) on derivative instruments | (4,474) | 3,584 | (7,555) | 21,768 |
|
Non-Derivative Net Investment Hedges [Member]
|
||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Non-derivative net investment hedges | $ 204,250 | $ 214,570 | ||