Other Assets Other Assets - Changes in Goodwill (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Changes to carrying amount
Goodwill Beginning Balance (net of $0 of accumulated impairment)	$ 10,179us-gaap_Goodwill	$ 0us-gaap_Goodwill
Acquisitions	0us-gaap_GoodwillAcquiredDuringPeriod	10,496us-gaap_GoodwillAcquiredDuringPeriod
Impairment	0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Foreign currency adjustment	(485)us-gaap_GoodwillTranslationAdjustments	(317)us-gaap_GoodwillTranslationAdjustments
Goodwill Ending Balance (net of $0 accumulated impairment)	$ 9,694us-gaap_Goodwill	$ 10,179us-gaap_Goodwill

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

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Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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