Business combination held back amount.

No definition available.

Name:	dzsi_BusinessCombinationHeldBackAmount
Namespace Prefix:	dzsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Business combination held back amounts released.

+ References

No definition available.

+ Details

Name:	dzsi_BusinessCombinationHeldBackAmountsReleased
Namespace Prefix:	dzsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Business combination hold back amounts to be released.

+ References

No definition available.

+ Details

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Namespace Prefix:	dzsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration

- Definition

This element represents a description of the primary reason for the business combination which may consist of general categories such as top-line growth, synergistic benefits, market share, and diversification and the more detailed factors that might apply.

+ References

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+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

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Period Type:	instant

- Details

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- Details

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- Details

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Business Combinations - Additional Information (Details) - USD ($) $ in Thousands				1 Months Ended
	May 27, 2022	Mar. 03, 2021	Feb. 05, 2021	Apr. 30, 2021	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Business Acquisition [Line Items]
Goodwill					$ 28,977	$ 6,145	$ 5,675
Optelian Access Networks Corporation
Business Acquisition [Line Items]
Purchase price			$ 7,500
Goodwill			1,900
Optelian Access Networks Corporation \| Optelian Products
Business Acquisition [Line Items]
Purchase price			1,900
Held back amount			$ 300
RIFT Inc
Business Acquisition [Line Items]
Purchase price		$ 500
Goodwill		$ 200
Held back amount released				$ 200
ASSIA
Business Acquisition [Line Items]
Purchase price	$ 25,000
Goodwill	22,803
Business combination hold back amounts to be released	$ 2,500
Reason for business combination	The CloudCheck® and Expresse® solutions are currently deployed in over 125 million connected homes globally, and many of these connections now represent recurring software revenue opportunities for DZS.