v2.4.0.6
Notional Amounts of Interest Rate Swaps by Remaining Maturity (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Derivative [Line Items]  
One Year    [1]
Two Through Five Years 70,000 [1]
Six Through Ten Years    [1]
After Ten years    [1]
Total $ 70,000 [1]
[1] Notional amount is not representative of either market risk or credit risk and is not recorded in the consolidated balance sheet.