Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Intangible assets subject to amortization
Gross carrying amount	$ 86,929	$ 86,928
Accumulated amortization	(42,088)	(40,164)
Foreign currency translation adjustment	(7,794)	(7,471)
Total	37,047us-gaap_FiniteLivedIntangibleAssetsNet	39,293us-gaap_FiniteLivedIntangibleAssetsNet
Intangible assets with indefinite lives
Gross carrying amount	6,403	6,403
Foreign currency translation adjustment	(787)	(668)
Total	5,616	5,735
Total intangible assets, net	$ 42,663	$ 45,028

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date of rights not otherwise specified in the taxonomy having a projected indefinite period of benefit.

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