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Assets and Liabilities Subject to Fair Value Measurements and Required Disclosures (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Assets:    
Cash and cash equivalents $ 26,922us-gaap_CashAndCashEquivalentsFairValueDisclosure $ 41,904us-gaap_CashAndCashEquivalentsFairValueDisclosure
Marketable securities 23,226us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent 20,004us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
Deferred compensation plan investments 1,282us-gaap_DefinedBenefitPlanFairValueOfPlanAssets 1,003us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Assets at fair value 51,430us-gaap_AssetsFairValueDisclosureRecurring 62,911us-gaap_AssetsFairValueDisclosureRecurring
Liabilities:    
Interest rate swap 240us-gaap_InterestRateDerivativeLiabilitiesAtFairValue  
Deferred compensation 873us-gaap_DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent 637us-gaap_DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent
Contractual acquisition earn-outs   369tsys_BusinessAcquisitionEarnoutsAtFairValue
Liabilities at fair value 1,113us-gaap_LiabilitiesFairValueDisclosureRecurring 1,006us-gaap_LiabilitiesFairValueDisclosureRecurring
Corporate bonds    
Assets:    
Marketable securities 21,704us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
18,833us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
Mortgage-backed and asset-backed securities    
Assets:    
Marketable securities 1,223us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= tsys_MortgageBackedAndAssetBackedSecuritiesMember
1,171us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= tsys_MortgageBackedAndAssetBackedSecuritiesMember
Agency bonds    
Assets:    
Marketable securities 299us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Fair Value, Inputs, Level 1    
Assets:    
Cash and cash equivalents 26,922us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
41,904us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Marketable securities 23,226us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
20,004us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Deferred compensation plan investments 1,282us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
1,003us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Assets at fair value 51,430us-gaap_AssetsFairValueDisclosureRecurring
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
62,911us-gaap_AssetsFairValueDisclosureRecurring
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Liabilities:    
Deferred compensation 873us-gaap_DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
637us-gaap_DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Liabilities at fair value 873us-gaap_LiabilitiesFairValueDisclosureRecurring
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
637us-gaap_LiabilitiesFairValueDisclosureRecurring
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Fair Value, Inputs, Level 1 | Corporate bonds    
Assets:    
Marketable securities 21,704us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
18,833us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
Fair Value, Inputs, Level 1 | Mortgage-backed and asset-backed securities    
Assets:    
Marketable securities 1,223us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= tsys_MortgageBackedAndAssetBackedSecuritiesMember
1,171us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= tsys_MortgageBackedAndAssetBackedSecuritiesMember
Fair Value, Inputs, Level 1 | Agency bonds    
Assets:    
Marketable securities 299us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Fair Value, Inputs, Level 2    
Liabilities:    
Interest rate swap 240us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
 
Liabilities at fair value 240us-gaap_LiabilitiesFairValueDisclosureRecurring
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
 
Fair Value, Inputs, Level 3    
Liabilities:    
Contractual acquisition earn-outs   369tsys_BusinessAcquisitionEarnoutsAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Liabilities at fair value   $ 369us-gaap_LiabilitiesFairValueDisclosureRecurring
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member