Goodwill and Intangible Assets, Net (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Changes in gross carrying amount of finite-lived intangible assets
Finite-Lived Intangible Assets, Gross	$ 59,329	$ 58,874	$ 67,862
Accumulated Amortization	(27,845)	(26,287)	(28,134)
Net Carrying Amount	31,484	32,587	39,728
Estimated future amortization of intangible assets
Remaining nine months of 2015	4,522
2016	5,827
2017	4,165
2018	3,227
2019	3,198
2020	3,168
Thereafter	5,218
Total	29,325us-gaap_FiniteLivedIntangibleAssetsNet
North America
Changes in gross carrying amount of finite-lived intangible assets
Finite-Lived Intangible Assets, Gross	29,415	29,455	34,495
Accumulated Amortization	(15,545)	(14,719)	(17,278)
Net Carrying Amount	13,870	14,736	17,217
Europe
Changes in gross carrying amount of finite-lived intangible assets
Finite-Lived Intangible Assets, Gross	29,914	29,419	33,367
Accumulated Amortization	(12,300)	(11,568)	(10,856)
Net Carrying Amount	$ 17,614	$ 17,851	$ 22,511

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

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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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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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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