Investment Securities (Detail) (Corporate Bond, USD $) In Thousands	Sep. 30, 2011
Corporate Bond
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 66,984
Gross Unrealized Gains
Gross Unrealized Losses	(692)
Fair Value	$ 66,292

For an unclassified balance sheet, this item represents investments in debt securities which are categorized as held-to-maturity. The held-to-maturity category is for those securities that the entity has the positive intent and ability to hold until maturity.

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+ Details