Number of interest rate derivative instruments terminated by the entity during the period.

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- Definition

Fair value of all liability derivatives designated as cash flow hedging instruments.

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-Name Statement of Financial Accounting Standard (FAS)

-Number 107

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- Definition

The amount of gains on a cash flow hedge reclassified in the period to interest expense from accumulated other comprehensive income.

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- Definition

Net fair value of all derivative instruments designated as cash flow hedging instruments, which is ordinarily reflected within other comprehensive income.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Derivatives (Details) (USD $)	9 Months Ended
Derivatives (Details) (USD $)	Sep. 30, 2011	Sep. 30, 2010	Jun. 30, 2011
Schedule of Trading Securities and Other Trading Assets [Line Items]
Number Of Interest Rate Derivatives Terminated			2
Treasury locks designated as cash flow hedges, fair value			$ 5,300,000
Treasury locks designated as cash flow hedges, other comprehensive income			5,218,000
Fair value of interest rate hedges recognized in other comprehensive income	5,980,000
Interest rate hedges gain reclassified as reduction to interest expense	47,000	124,000
Interest rate hedges gain (loss) to be reclassified into interest expense over next 12 months	227,000
Interest Rate Swaps [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Notional amount of interest rate hedges terminated			$ 150,000,000