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Recoverable Non-income Taxes (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Summary of recoverable non-income taxes    
Total recoverable non-income taxes $ 25.7tecua_RecoverableNonIncomeTax $ 27.7tecua_RecoverableNonIncomeTax
Brazil [Member]    
Summary of recoverable non-income taxes    
Total recoverable non-income taxes 20.1tecua_RecoverableNonIncomeTax
/ us-gaap_StatementBusinessSegmentsAxis
= country_BR		 21.7tecua_RecoverableNonIncomeTax
/ us-gaap_StatementBusinessSegmentsAxis
= country_BR
India [Member]    
Summary of recoverable non-income taxes    
Total recoverable non-income taxes 5.1tecua_RecoverableNonIncomeTax
/ us-gaap_StatementBusinessSegmentsAxis
= country_IN		 4.8tecua_RecoverableNonIncomeTax
/ us-gaap_StatementBusinessSegmentsAxis
= country_IN
Europe [Member]    
Summary of recoverable non-income taxes    
Total recoverable non-income taxes 0.2tecua_RecoverableNonIncomeTax
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember		 1.0tecua_RecoverableNonIncomeTax
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
MEXICO    
Summary of recoverable non-income taxes    
Total recoverable non-income taxes $ 0.3tecua_RecoverableNonIncomeTax
/ us-gaap_StatementBusinessSegmentsAxis
= country_MX		 $ 0.2tecua_RecoverableNonIncomeTax
/ us-gaap_StatementBusinessSegmentsAxis
= country_MX