Document and Entity Information (USD $)	6 Months Ended
	Jun. 30, 2013	Jul. 25, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	TELETECH HOLDINGS INC
Entity Central Index Key	0001013880
Document Type	10-Q
Document Period End Date	Jun. 30, 2013
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float	$ 451,226,304
Entity Common Stock, Shares Outstanding		50,851,727