XML 87 R75.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Income Taxes - Income Tax Provision/(Benefit) (Details Textual) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Income Taxes [Line Items] |  |
Deferred income tax assets attributable to capitalized R&D | $ 66,178 | $ 46,817
Federal and State Deferred Tax Assets |  |
Income Taxes [Line Items] |  |
Deferred income tax assets attributable to capitalized R&D | $ 65,700 |

X
- Definition Income taxes line items. + References No definition available. + Details
Name: | csgs_IncomeTaxesLineItems
Namespace Prefix: | csgs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from in-process research and development cost acquired in business combination or from joint venture formation or both. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
Name: | us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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