ACQUISITIONS	3 Months Ended
Mar. 31, 2025
ACQUISITIONS [ABSTRACT]
Business Combination Disclosure [Text Block]	(2)ACQUISITIONS AND DIVESTITURES Certain Assets of Faneuil On April 1, 2022, the Company completed an asset acquisition through its subsidiary TTEC Government Solutions LLC, of certain public sector citizen experience contracts in the transportation infrastructure and healthcare exchange industries from Faneuil, Inc., a subsidiary of ALJ Regional Holdings, Inc. (“the Faneuil Transaction”). The acquired business is operated as part of the TTEC Engage segment and was fully consolidated into the financial statements of TTEC. The Faneuil Transaction was recorded as a business combination under ASC 805, Business Combinations, with identifiable assets acquired and liabilities assumed recorded at their estimated fair values as of the acquisition date. Total cash paid at the time of acquisition was $142.4 million. The Faneuil Transaction included contingent payments that were based on the revenue and EBITDA performance of certain contracts with the value of the contingent payments to be determined. During the second quarter of 2023, the contingent payment obligation was modified to a minimum payment of $7.4 million and a maximum payment of $10.4 million. An initial payment of $7.4 million was completed in May 2023. During 2023, a combined $3.0 million net expense was recorded related to fair value adjustments for the estimated contingent payment based on changes in estimated EBITDA, the timing of cash flows and market interest rate changes. During 2024, a combined $1.5 million net gain was recorded related to fair value adjustments for the estimated contingent consideration payment based on changes in estimated EBITDA, the timing of cash flows and market interest rate changes. These benefits (expenses) were included in Other income (expense) in the Consolidated Statements of Comprehensive Income (Loss). The earn-out period was completed at the end of January 2025. Based on final results, no final earn-out payment was required.

ACQUISITIONS

3 Months Ended

Mar. 31, 2025

Business Combination Disclosure [Text Block]

(2)ACQUISITIONS AND DIVESTITURES

Certain Assets of Faneuil

On April 1, 2022, the Company completed an asset acquisition through its subsidiary TTEC Government Solutions LLC, of certain public sector citizen experience contracts in the transportation infrastructure and healthcare exchange industries from Faneuil, Inc., a subsidiary of ALJ Regional Holdings, Inc. (“the Faneuil Transaction”). The acquired business is operated as part of the TTEC Engage segment and was fully consolidated into the financial statements of TTEC. The Faneuil Transaction was recorded as a business combination under ASC 805, Business Combinations, with identifiable assets acquired and liabilities assumed recorded at their estimated fair values as of the acquisition date.

Total cash paid at the time of acquisition was $142.4 million. The Faneuil Transaction included contingent payments that were based on the revenue and EBITDA performance of certain contracts with the value of the contingent payments to be determined.

During the second quarter of 2023, the contingent payment obligation was modified to a minimum payment of $7.4 million and a maximum payment of $10.4 million. An initial payment of $7.4 million was completed in May 2023. During 2023, a combined $3.0 million net expense was recorded related to fair value adjustments for the estimated contingent payment based on changes in estimated EBITDA, the timing of cash flows and market interest rate changes. During 2024, a combined $1.5 million net gain was recorded related to fair value adjustments for the estimated contingent consideration payment based on changes in estimated EBITDA, the timing of cash flows and market interest rate changes. These benefits (expenses) were included in Other income (expense) in the Consolidated Statements of Comprehensive Income (Loss). The earn-out period was completed at the end of January 2025. Based on final results, no final earn-out payment was required.