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Derivatives Interest Rate Swap (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Oct. 25, 2010
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
First Portion Variable-Rate Debt Outstanding |  | $ 55,000,000 |
Notional Amount of Interest Rate Cash Flow Hedge Derivatives |  |  | 55,000,000
Derivative, Fixed Interest Rate | 2.73% |  |
Interest Rate Cash Flow Hedge Asset at Fair Value |  | 1,159,000 |
Accumulated Other Comprehensive Income Loss Tax On Interest Rate Swap | 451,000 | 451,000 |
Derivative, Cash Received on Hedge | 28,000 |  |
Gain from Components Excluded from Assessment of Cash Flow Hedge Effectiveness | $ 73,000 | $ 20,000 |

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- Definition Tax effect of the gross appreciation or the gross loss in the value of the interest rate swap at the end of an accounting period. + References No definition available. + Details
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- Definition Total Variable-Rate Debt Outstanding + References No definition available. + Details
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- Definition The amount of cash received during the period on settlement of a hedge. + References No definition available. + Details
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- Definition The gain relating to components of the gain (loss) on the cash flow hedging instrument excluded from the assessment of cash flow hedge effectiveness. Recognized in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 45 -Subparagraph b(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624171-113959 + Details
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- Definition Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624163-113959 + Details
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