Amount associated with exit or disposal activities pursuant to an authorized plan.

No definition available.

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Namespace Prefix:	csgs_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

The number of positions eliminated during the period as a result of restructuring activities.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- 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

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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Balance Type:	credit
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- Details

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Namespace Prefix:
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Restructuring and Reorganization Charges (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) Employees	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization charges	$ 814	$ 1,330	$ 4,277	$ 3,271
Reduced workforce \| Employees			60
Restructuring and reorganization reserve	739		$ 739		$ 822
Current Liabilities
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization reserve	$ 700		700
Termination Benefits Related to Organizational Changes
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization charges			$ 3,300