XML 102 R87.htm IDEA: XBRL DOCUMENT
v3.8.0.1

INCOME TAXES (JURISDICTIONS OPEN TO TAX EXAMINATIONS TABLE) (DETAILS) | 12 Months Ended
--- | ---
Dec. 31, 2017
United States |
Income Tax Examination [Line Items] |
Tax Years Ended | 2014 to present
Australia |
Income Tax Examination [Line Items] |
Tax Years Ended | 2013 to present
Brazil |
Income Tax Examination [Line Items] |
Tax Years Ended | 2012 to present
Canada |
Income Tax Examination [Line Items] |
Tax Years Ended | 2009 to present
Mexico |
Income Tax Examination [Line Items] |
Tax Years Ended | 2012 to present
Philippines |
Income Tax Examination [Line Items] |
Tax Years Ended | 2015 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
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_IncomeTaxExaminationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_AU
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_BR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_MX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_PH
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |