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Goodwill and Intangible Asset (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Goodwill and Intangible Assets [Abstract]      
Goodwill $ 14,916,000us-gaap_Goodwill   $ 14,916,000us-gaap_Goodwill
Estimated useful lives customer relationship 5 years    
Amortization of intangible assets 600,000us-gaap_AmortizationOfIntangibleAssets 600,000us-gaap_AmortizationOfIntangibleAssets  
Annual amortization expense 2,300,000tlsrp_AnnualAmortizationExpense    
Asset impairment charges 0us-gaap_AssetImpairmentCharges    
Finite-Lived Intangible Assets [Line Items]      
Cost 11,286,000us-gaap_FiniteLivedIntangibleAssetsGross   11,286,000us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated Amortization 8,465,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization   7,900,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Other Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Cost 11,286,000us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember
  11,286,000us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember
Accumulated Amortization $ 8,465,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember
  $ 7,900,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember