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Derivatives (Narrative) (Details) (USD $)			3 Months Ended
	Mar. 31, 2014 Interest Rate Swap	Oct. 31, 2012 Interest Rate Swap	Mar. 31, 2014 Interest Rate Cap and Interest Rate Swap	Mar. 31, 2014 Terminated Interest Rate Swap	Mar. 31, 2014 Forward Contracts	Dec. 31, 2013 Forward Contracts
Derivative [Line Items]
Notional amount	$ 27,831,000	$ 28,000,000
Expense related to qualifying cash flow hedges expected to be reclassified to earnings over the next 12 months			(600,000)	500,000
Collateral already posted, aggregate fair value					$ 7,200,000	$ 7,200,000

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

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Namespace Prefix:	invest_
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X

- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994

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X

- Definition

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4H

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624258-113959

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