Derivative Financial Instruments (Details) (Interest rate swaps, USD $)
In Millions, unless otherwise specified |
12 Months Ended |
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Dec. 31, 2012
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|
Derivative financial instruments | |
Fair value of collateral posted | $ 5.3 |
Counterparty A paying 1.67% interest
|
|
Derivative financial instruments | |
Notional amount of interest rate derivative agreements | 25.0 |
Derivative reference rate | 3-Month LIBOR |
Counterparty A paying 1.65% interest
|
|
Derivative financial instruments | |
Notional amount of interest rate derivative agreements | 25.0 |
Derivative reference rate | 3-Month LIBOR |
Counterparty B paying 1.59% interest
|
|
Derivative financial instruments | |
Notional amount of interest rate derivative agreements | 25.0 |
Derivative reference rate | 3-Month LIBOR |
Counterparty B paying 2.14% interest
|
|
Derivative financial instruments | |
Notional amount of interest rate derivative agreements | $ 25.0 |
Derivative reference rate | 3-Month LIBOR |