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Equity-Based Compensation - Summary of Equity-Based Compensation Expense (Details 2) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Equity-Based Compensation      
Restricted stock units $ 2,660us-gaap_RestrictedStockExpense $ 4,219us-gaap_RestrictedStockExpense $ 4,099us-gaap_RestrictedStockExpense
Service Based Restricted Stock Units [Member]      
Equity-Based Compensation      
Restricted stock units 1,771us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_ServiceBasedRestrictedStockUnitsMember		 2,879us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_ServiceBasedRestrictedStockUnitsMember		 2,939us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_ServiceBasedRestrictedStockUnitsMember
Performance Based Restricted Stock Units [Member]      
Equity-Based Compensation      
Restricted stock units 479us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_PerformanceBasedRestrictedStockUnitsMember		 674us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_PerformanceBasedRestrictedStockUnitsMember		 242us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_PerformanceBasedRestrictedStockUnitsMember
Market Based Restricted Stock Units [Member]      
Equity-Based Compensation      
Restricted stock units 410us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_MarketBasedRestrictedStockUnitsMember		 666us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_MarketBasedRestrictedStockUnitsMember		 918us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= cts_MarketBasedRestrictedStockUnitsMember
RSUs [Member]      
Equity-Based Compensation      
Restricted stock units 2,660us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 4,219us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 4,099us-gaap_RestrictedStockExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
Income tax benefit $ 1,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 $ 1,600us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 $ 1,600us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember