XML 47 R36.htm IDEA: XBRL DOCUMENT
v3.25.4

Website and Software Development Costs, Net (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Capitalized Computer Software, Net [Abstract] |
Summary of Website and Software Development Costs | The details of website and software development costs, net and the related accumulated amortization are set forth below:
|  | As of December 31, 2025 |  |  | As of December 31, 2024 |
Website and software development costs |  | $ | 157,185 |  |  | $ | 134,044 |
Less: Accumulated amortization |  |  | (125,665 | ) |  |  | (105,095 | )
Website and software development costs, net |  | $ | 31,520 |  |  | $ | 28,949 |

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

X
- Definition Schedule of Website and software development costs [Table text block]. + References No definition available. + Details
Name: | zeta_ScheduleOfWebsiteAndSoftwareDevelopmentCostsTableTextBlock
Namespace Prefix: | zeta_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration