Goodwill - Schedule of Changes in Carrying Amounts of Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 454.9
Effect of foreign currency translation	0.6
Goodwill, ending balance	$ 455.5

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details

DROPBOX, INC. 10-Q