Derivatives (Derivative Instruments And Hedging Activities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	$ 18,044	$ 6,051	$ 0
Other Assets Interest Rate Swaps Fair Value	508	187	0
Derivative Liability, Notional Amount	18,044	6,051	0
Other Liabilities Interest Rate Swaps Fair Value	$ 355	$ 178	$ 0

Nominal or face amount used to calculate payments on the derivative asset.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

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-Paragraph 1A

-Subparagraph (d)

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

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- Definition

Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

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- Definition

Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments.

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