XML 64 R47.htm IDEA: XBRL DOCUMENT
v3.22.4

Goodwill and Long-Lived Assets - Summary of Aggregate Amortization Related to Intangible Assets (Parenthetical) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2022
Acquired customer contracts |
Finite Lived Intangible Assets [Line Items] |
Estimated useful life | 81 months
Acquired customer contracts | Minimum |
Finite Lived Intangible Assets [Line Items] |
Estimated useful life | 1 year
Acquired customer contracts | Maximum |
Finite Lived Intangible Assets [Line Items] |
Estimated useful life | 20 years
Acquired software | Minimum |
Finite Lived Intangible Assets [Line Items] |
Estimated useful life | 4 years
Acquired software | Maximum |
Finite Lived Intangible Assets [Line Items] |
Estimated useful life | 8 years
Internal use software | Minimum |
Finite Lived Intangible Assets [Line Items] |
Estimated useful life | 1 year
Internal use software | Maximum |
Finite Lived Intangible Assets [Line Items] |
Estimated useful life | 10 years

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
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_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=csgs_AcquiredCustomerContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=csgs_AcquiredSoftwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=csgs_InternalUseSoftwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |