Derivatives - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
9 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2014
|
Sep. 30, 2014
Minimum [Member]
|
Sep. 30, 2014
Maximum [Member]
|
Sep. 30, 2014
Interest Rate Swaps [Member]
|
Jun. 09, 2011
Interest Rate Swaps [Member]
Agreement
|
Sep. 30, 2014
Foreign Exchange Forward Contracts [Member]
Derivative
|
Sep. 30, 2014
Warrants [Member]
Warrants
|
Sep. 30, 2013
Warrants [Member]
Warrants
|
Sep. 30, 2014
Warrants [Member]
Warrants
|
Sep. 30, 2013
Warrants [Member]
Warrants
|
|
Derivatives And Hedging Activities [Line Items] | ||||||||||
Warrant Sold | 0 | 0 | 0 | 0 | ||||||
Number of foreign exchange forward contracts | 6 | 12 | ||||||||
Notional amount | $ 75.6 | |||||||||
Expiration year of hedge instruments | 2014 | |||||||||
Interest rate swaps expiry date | Sep. 30, 2013 | Mar. 31, 2016 | ||||||||
Interest Rate Cash Flow Hedge Loss to be Reclassified During Next 12 Months, Net | 12.2 | |||||||||
Derivative fixed interest rate | 2.57% | |||||||||
Interest rate swaps hedged amount due to future change in interest rate swaps | $ 910.0 | |||||||||
Interest rate swaps effectively converted percent | 44.30% |