|
Derivatives - Schedule of Outstanding and Matured Interest Rate Swaps (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended |
|---|---|
|
Mar. 31, 2014
|
|
| Derivative [Line Items] | |
| Notional Amount | $ 750,000 |
| Maturity Date | May 15, 2019 |
|
2.03% Interest Rate Swap Outstanding [Member]
|
|
| Derivative [Line Items] | |
| Notional Amount | 400,000 |
| Interest Rate Received | 1 month LIBOR |
| Interest Rate Paid | 2.03% |
| Effective Date | Jul. 29, 2011 |
| Maturity Date | Sep. 30, 2014 |
|
2.51% Interest Rate Swap Outstanding [Member]
|
|
| Derivative [Line Items] | |
| Notional Amount | $ 350,000 |
| Interest Rate Received | 1 month LIBOR |
| Interest Rate Paid | 2.51% |
| Effective Date | Apr. 30, 2012 |
| Maturity Date | Sep. 30, 2014 |