Business Combination, Consideration Transferred, Escrow

No definition available.

Name:	chgg_BusinessCombinationConsiderationTransferredEscrow
Namespace Prefix:	chgg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Business Combination, Consideration Transferred, Escrow Release Period

+ References

No definition available.

+ Details

Name:	chgg_BusinessCombinationConsiderationTransferredEscrowReleasePeriod
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Data Type:	xbrli:durationItemType
Balance Type:	na
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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

Name:	us-gaap_BusinessAcquisitionLineItems
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Period Type:	duration

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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-Name Accounting Standards Codification
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- 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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Period Type:	instant

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

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Period Type:	instant

- Details

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- Details

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Acquisitions - 2017 Acquisitions (Details) - Cogeon GmbH - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Total fair value of purchase consideration	$ 15,014
Escrow	$ 2,244
Escrow release period	24 months
Contingent consideration arrangements, range of outcomes, value, high	$ 9,000
Contingent purchase consideration, cash		$ 5,700	$ 600
Acquisition related expenses		700
Contingent Equity Grants
Business Acquisition [Line Items]
Contingent consideration arrangements, range of outcomes, value, high		3,800
Contingent purchase consideration, cash		$ 1,600