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INCOME TAXES (JURISDICTIONS OPEN TO TAX EXAMINATIONS TABLE) (DETAILS)	12 Months Ended
	Dec. 31, 2012
United States [Member]
Income Tax Examination [Line Items]
Tax Years Ended	2009 to present
Argentina [Member]
Income Tax Examination [Line Items]
Tax Years Ended	2007 to present
Australia [Member]
Income Tax Examination [Line Items]
Tax Years Ended	2008 to present
Brazil [Member]
Income Tax Examination [Line Items]
Tax Years Ended	2007 to present
Canada [Member]
Income Tax Examination [Line Items]
Tax Years Ended	2005 to present
Mexico [Member]
Income Tax Examination [Line Items]
Tax Years Ended	2007 to present
Philippines [Member]
Income Tax Examination [Line Items]
Tax Years Ended	2010 to present
Spain [Member]
Income Tax Examination [Line Items]
Tax Years Ended	2008 to present

X

- Definition

The tax year(s) being audited in connection with the income tax examination.

+ References

No definition available.

+ Details

Name:	ttec_IncomeTaxExaminationYearsUnderExamination1
Namespace Prefix:	ttec_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeTaxExaminationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration