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The amount of identifiable intangible assets recognized as of the acquisition date.

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Acquisitions - Schedule of Business Acquisitions, by Acquisition (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Nov. 30, 2021
Business Acquisition [Line Items]
Goodwill	$ 63,318	$ 63,229	$ 59,910
Minimum
Business Acquisition [Line Items]
Estimated useful life of intangible assets	2 years
Maximum
Business Acquisition [Line Items]
Estimated useful life of intangible assets	6 years
Customer relationships
Business Acquisition [Line Items]
Estimated useful life of intangible assets	3 years 9 months 18 days	4 years 9 months 18 days
Developed technology
Business Acquisition [Line Items]
Estimated useful life of intangible assets	2 years 2 months 12 days	3 years 2 months 12 days
Trade names
Business Acquisition [Line Items]
Estimated useful life of intangible assets	1 year	1 year 3 months 18 days
Earth Class Mail
Business Acquisition [Line Items]
Goodwill				$ 48,617
Property and equipment				267
Deferred tax liability				(3,087)
Other liabilities				(787)
Total purchase consideration				$ 61,210
Earth Class Mail \| Minimum
Business Acquisition [Line Items]
Estimated useful life of property and equipment				3 years
Earth Class Mail \| Maximum
Business Acquisition [Line Items]
Estimated useful life of property and equipment				5 years
Earth Class Mail \| Customer relationships
Business Acquisition [Line Items]
Estimated fair value of intangible assets				$ 10,603
Estimated useful life of intangible assets				6 years
Earth Class Mail \| Developed technology
Business Acquisition [Line Items]
Estimated fair value of intangible assets				$ 5,418
Estimated useful life of intangible assets				5 years
Earth Class Mail \| Trade names
Business Acquisition [Line Items]
Estimated fair value of intangible assets				$ 179
Estimated useful life of intangible assets				26 months