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Employee Benefit Plans (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]    
Accumulated benefit obligation $ 145,004us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent $ 171,651us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]    
Projected benefit obligation at beginning of year 288,845us-gaap_DefinedBenefitPlanBenefitObligation 269,760us-gaap_DefinedBenefitPlanBenefitObligation
Interest cost 6,439us-gaap_DefinedBenefitPlanInterestCost 4,621us-gaap_DefinedBenefitPlanInterestCost
Actuarial loss (gain) (92,394)us-gaap_DefinedBenefitPlanActuarialGainLoss 23,517us-gaap_DefinedBenefitPlanActuarialGainLoss
Benefits paid 0us-gaap_DefinedBenefitPlanBenefitsPaid 0us-gaap_DefinedBenefitPlanBenefitsPaid
Service cost 2,223us-gaap_DefinedBenefitPlanServiceCost 0us-gaap_DefinedBenefitPlanServiceCost
Currency translation and other (11,969)us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation (9,053)us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation
Projected benefit obligation at end of year 193,144us-gaap_DefinedBenefitPlanBenefitObligation 288,845us-gaap_DefinedBenefitPlanBenefitObligation
Changes in plan assets:    
Fair value of plan assets at beginning of year 114,791us-gaap_DefinedBenefitPlanFairValueOfPlanAssets 108,214us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Actual return on plan assets 2,583us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets 1,277us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets
Benefits paid 0us-gaap_DefinedBenefitPlanBenefitsPaid 0us-gaap_DefinedBenefitPlanBenefitsPaid
Employer contributions 9,480us-gaap_DefinedBenefitPlanContributionsByEmployer 8,909us-gaap_DefinedBenefitPlanContributionsByEmployer
Currency translation and other (6,836)us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets (3,609)us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets
Fair value of plan assets at end of year 120,018us-gaap_DefinedBenefitPlanFairValueOfPlanAssets 114,791us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Funded status $ 73,126us-gaap_DefinedBenefitPlanFundedStatusOfPlan $ 174,054us-gaap_DefinedBenefitPlanFundedStatusOfPlan