XML 41 R32.htm IDEA: XBRL DOCUMENT v3.25.3

Summary of Significant Accounting Policies - Schedule of Settlement and Merchant Reserve Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Settlement And Merchant Reserve Assets And Liabilities [Abstract]
Settlement assets	$ 291,976	$ 330,769
Merchant reserve assets	9,569	12,466
Total	301,545	343,235	$ 240,755
Settlement liabilities	288,889	329,458
Merchant reserve liabilities	9,530	12,466
Total	$ 298,419	$ 341,924

X

- Definition

Merchant reserve assets current.

+ References

No definition available.

+ Details

Name:	csgs_MerchantReserveAssetsCurrent
Namespace Prefix:	csgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Merchant reserve liabilities current.

+ References

No definition available.

+ Details

Name:	csgs_MerchantReserveLiabilitiesCurrent
Namespace Prefix:	csgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Settlement And Merchant Reserve Assets And Liabilities Abstract

+ References

No definition available.

+ Details

Name:	csgs_SettlementAndMerchantReserveAssetsAndLiabilitiesAbstract
Namespace Prefix:	csgs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Settlement and merchant reserve assets current.

+ References

No definition available.

+ Details

Name:	csgs_SettlementAndMerchantReserveAssetsCurrent
Namespace Prefix:	csgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Settlement and merchant reserve liabilities current.

+ References

No definition available.

+ Details

Name:	csgs_SettlementAndMerchantReserveLiabilitiesCurrent
Namespace Prefix:	csgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Cash received or short term receivables for unsettled money transfers, money orders, consumer payments, or business to business payments. Settlement assets include clearing and settling customers payments due to and from financial institutions and may include cash and cash equivalents.

+ References

No definition available.

+ Details

Name:	us-gaap_SettlementAssetsCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amounts payable for money transfers, money orders, and consumer payment service arrangements. Settlement liabilities include amounts payable to intermediaries for global payment transfers.

+ References

No definition available.

+ Details

Name:	us-gaap_SettlementLiabilitiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant