Finance Lease Receivables - Components of Finance Lease Receivables (Details) (Finance Leases Financing Receivable [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Finance Leases Financing Receivable [Member]
Total minimum lease receivable	$ 99,598	$ 133,028
Estimated unguaranteed residual values	6,048	5,942
Total Minimum Payments to be Received And Unguaranteed Residual Values	105,646	138,970
Unearned interest income	(6,190)	(15,151)
Unearned residuals	(1,160)	(1,207)
Unearned Interest Income and Residuals	(7,350)	(16,358)
Total	$ 98,296	$ 122,612

Capital Leases, Net Investment in Sales Type Leases, Minimum Payments to be Received And Unguaranteed Residual Values

No definition available.

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- Definition

Capital Leases, Net Investment in Sales Type Leases, Receivable, Net

+ References

No definition available.

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- Definition

Capital Leases, Net Investment in Sales Type Leases, Unearned Interest Income

+ References

No definition available.

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- Definition

Capital Leases, Net Investment in Sales Type Leases, Unearned Interest Income and Residuals

+ References

No definition available.

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- Definition

Capital Leases, Net Investment in Sales Type Leases, Unearned Residuals

+ References

No definition available.

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- Definition

Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under sales-type leases, including any guarantee of residual value and executory costs. The amount also includes any guaranteed rental payments by an unrelated third-party provided that are financially capable of making such payments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 25

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6915991&loc=d3e34102-112682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 23

-Subparagraph a(i)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 5

-Subparagraph j

-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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6952072&loc=d3e45377-112738

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- Definition

The estimate of the lease property's economic value at the end of the sales-type lease term excluding any amounts guaranteed by either the lessee or a third-party.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 23

-Subparagraph a(i)(b)

-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 840

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=6952072&loc=d3e45377-112738

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