XML 40 R28.htm IDEA: XBRL DOCUMENT
v3.25.3

ACCOUNTS RECEIVABLE AND SIGNIFICANT CLIENTS (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
ACCOUNTS RECEIVABLE AND SIGNIFICANT CLIENTS [Abstract] |
Schedule of Change in Allowance for Doubtful Accounts | Activity in the Company’s Allowance for credit losses consists of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30, |
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |
Balance, beginning of period | ​ | $ | 5,000 | ​ | $ | 4,757 | ​ | $ | 5,244 | ​ | $ | 2,248 | ​
Provision for credit losses | ​ |  | 102 | ​ |  | 100 | ​ |  | 700 | ​ | ​ | 2,744 | ​
Uncollectible receivables written-off | ​ |  | 26 | ​ |  | (397) | ​ |  | (816) | ​ | ​ | (553) | ​
Effect of foreign currency | ​ | ​ | — | ​ | ​ | 301 | ​ | ​ | — | ​ | ​ | 322 | ​
Balance, end of period | ​ | $ | 5,128 | ​ | $ | 4,761 | ​ | $ | 5,128 | ​ | $ | 4,761 | ​

X
- References No definition available. + Details
Name: | ttec_AccountsReceivableAndSignificantClientsAbstract
Namespace Prefix: | ttec_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration