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Goodwill and Intangible Assets, Net - Narrative (Details) - Marketwise, LLC - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Amortization of intangible assets	$ 582	$ 524	$ 1,223	$ 1,046	$ 2,102	$ 1,710	$ 1,721
Amortization of capitalized software development costs	$ 102	$ 104	203	$ 207	415	130	43
Additions to capitalized software development costs			247		$ 0	$ 752	$ 848
Capitalized software development costs
Goodwill [Line Items]
Additions to capitalized software development costs			$ 267

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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- Definition

Additions made to capitalized computer software costs during the period.

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Amount of expense for amortization of capitalized computer software costs.

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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.

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No definition available.

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