Balance Sheet Components Balance sheet components - sales type lease Future Payments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Lessors schedule of future minimum lease payments [Line Items]
Capital Leases, Future Minimum Payments Due, Next Twelve Months	$ 929
Capital Leases, Future Minimum Payments Due in Two Years	806
Capital Leases, Future Minimum Payments Due in Three Years	633
Capital Leases, Future Minimum Payments Due in Four Years	229
Capital Leases, Net Investment in Sales Type Leases, Minimum Payments to be Received	$ 2,597	$ 1,063

Amount of minimum lease payments maturing in the next fiscal year following the latest fiscal year for capital leases.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

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Amount of minimum lease payments maturing in the forth fiscal year following the latest fiscal year for capital leases.

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- Definition

Amount of minimum lease payments maturing in the third fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the second fiscal year following the latest fiscal year for capital leases.

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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 30

-Section 50

-Paragraph 4

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738

Reference 2: 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=7661868&loc=d3e34102-112682

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