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Business Combinations - Schedule of Purchase Consideration (Details) - FormSwift $ in Millions	Dec. 15, 2022 USD ($)
Business Acquisition [Line Items]
Cash paid to stockholders	$ 50.0
Cash paid for extinguishing shadow stock units	3.2
Transaction costs paid by Dropbox on behalf of FormSwift	2.0
Cash purchase consideration	55.2
Indemnification holdback	14.3
Purchase price adjustments	(0.2)
Total purchase consideration	$ 69.3
Indemnity holdback period	18 months

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Payments For Extinguishment Of Ownership Units

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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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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.

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The cash outflow associated with other payments to acquire businesses including deposit on pending acquisitions and preacquisition costs.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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