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Equity-Based Compensation - Summary of Equity-Based Compensation Expense (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 29, 2015
plan
Mar. 30, 2014
Share-based Compensation    
Number of Equity-Based Compensation Plans 5cts_NumberOfEquityBasedCompensationPlan  
Restricted stock units $ 1,520us-gaap_RestrictedStockExpense $ 779us-gaap_RestrictedStockExpense
Service-Based RSUs    
Share-based Compensation    
Restricted stock units 549us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_ServiceBasedRestrictedStockUnitsMember		 473us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_ServiceBasedRestrictedStockUnitsMember
Performance-Based RSUs    
Share-based Compensation    
Restricted stock units 520us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_PerformanceBasedRestrictedStockUnitsMember		 174us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_PerformanceBasedRestrictedStockUnitsMember
Market-Based RSUs    
Share-based Compensation    
Restricted stock units 451us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_MarketBasedRestrictedStockUnitsMember		 132us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_MarketBasedRestrictedStockUnitsMember
RSUs    
Share-based Compensation    
Restricted stock units 1,520us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 779us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
Income tax benefit $ 571us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 $ 298us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember