COMMITMENTS AND CONTINGENCIES (NARRATIVE) (DETAILS)	9 Months Ended							9 Months Ended
	Sep. 30, 2012 USD ($)	Sep. 30, 2011 USD ($)	Oct. 01, 2010 USD ($)	Mar. 31, 2012 USD ($)	Mar. 31, 2012 BRL	Mar. 27, 2012 USD ($)	Dec. 31, 2011 USD ($)	Sep. 30, 2012 Sao Paolo Brazil [Member]	Sep. 30, 2012 David Calkins [Member]
COMMITMENTS AND CONTINGENCIES [Abstract]
Initiation date of current line of credit agreement			Oct. 01, 2010
Line of Credit Facility, Rationale for Classification as Long-term Debt			5 Year Term
Initial borrowing capacity			$ 350,000,000
Amended date of current line of credit agreement						Mar. 27, 2012
Increase in borrowing capacity						150,000,000
Maximum borrowing capacity						500,000,000
Borrowings outstanding on credit facility	88,000,000						64,000,000
Average daily utilization under credit facility	144,400,000	104,700,000
Letters of credit issued under credit facility	4,400,000
Remaining borrowing capacity under credit facility	407,600,000
Letters of credit issued outside credit facility	1,300,000
Loss Contingencies [Line Items]
Loss Contingency, Actions Taken by Plaintiff								In 2009, the municipality of Sao Paolo, Brazil assessed the Company’s Brazilian subsidiary a services tax on certain equipment rental income earned in 2004 and 2005. In March 2011, the Company’s Brazilian subsidiary filed a tax annulment action in the Sao Paolo municipal court to challenge the assessment of services taxes on rental income. Further, in order to halt the possibility of any further interest being charged against the alleged due tax assessments	On October 12, 2012, David Calkins filed an amended class action complaint in the Superior Court of the State of California, County of Santa Clara, against TeleTech Services Corp. and Google Inc. (“Google”), as co-defendants. The action alleges that the defendants violated California Penal Code Section 632 by recording telephone calls made on behalf of Google to residents in California without disclosing that the calls might be recorded. The plaintiff seeks class certification, cash statutory damages and attorney fees. Pursuant to our agreement with Google, Google has made a claim for full indemnification from the Company for all expenses incurred by Google in connection with the lawsuit.
Loss Contingency, Management's Assessment and Process								Based on an opinion received from legal counsel in Brazil, the Company believes that (i) the ruling issued by the Sao Paolo municipal court was incorrect and in contravention of a Brazil Supreme Court ruling concerning the invalidity of services taxes on rental income, (ii) the Brazilian subsidiary has valid defenses against the assessed services taxes and (iii) that payment of these services taxes is not probable. Accordingly, the Company has not recorded an expense in the nine months ended September 30, 2012 for the Sao Paolo services tax assessment.	On October 12, 2012, David Calkins filed an amended class action complaint in the Superior Court of the State of California, County of Santa Clara, against TeleTech Services Corp. and Google Inc. (“Google”), as co-defendants. The action alleges that the defendants violated California Penal Code Section 632 by recording telephone calls made on behalf of Google to residents in California without disclosing that the calls might be recorded. The plaintiff seeks class certification, cash statutory damages and attorney fees. Pursuant to our agreement with Google, Google has made a claim for full indemnification from the Company for all expenses incurred by Google in connection with the lawsuit. The ultimate outcome of this litigation, and consequently, an estimate of the possible loss, if any, related to this litigation, cannot reasonably be determined at this time. The Company intends to vigorously defend itself in these proceedings.
Loss Contingency, Judicial Deposit Made				$ 4,100,000	6,900,000