Altimar Acquisition Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Details)

Subsequent Events - Additional Information (Details) $ in Millions		6 Months Ended
	Jul. 07, 2022 USD ($) Acquisition	Jun. 30, 2022	Sep. 30, 2022 USD ($)
Subsequent Event [Line Items]
Number of acquisitions since 2019 \| Acquisition	13
Planned restructuring activities, Description		Pursuant to the Reorganization, the Company intends to: Consolidate its existing facility in Oakland, CA into Fathom headquarters in Hartland, WI, improving utilization and reducing costs; Establish a Fathom technology center in the Bay Area that will focus on new and emerging technologies, specifically in the additive market; and Consolidate leadership and other roles through a net workforce reduction of approximately 6%, create an accounting shared service organization to streamline company-wide processes and create economies of scale while pursuing additional shared-service systems in other administrative functions.
Forecast [Member]
Subsequent Event [Line Items]
Reorganization, Expected restructuring charges			$ 0.9
Subsequent Event [Member]
Subsequent Event [Line Items]
Reorganization, Percentage of expected net workforce reduction	6.00%
Reorganization, Expected net pre-tax annualized cost savings	$ 5.5
Reorganization, Expected restructuring charges	2.0
Reorganization, Expected cash expenditures	1.7
Subsequent Event [Member] \| Severance and Other Employee-Related Costs [Member]
Subsequent Event [Line Items]
Reorganization, Expected restructuring charges	0.8
Subsequent Event [Member] \| Fixed Asset and Facility Related Write-Down Expenses [Member]
Subsequent Event [Line Items]
Reorganization, Expected restructuring charges	0.5
Subsequent Event [Member] \| Other Associated Moving and Relocation Costs [Member]
Subsequent Event [Line Items]
Reorganization, Expected restructuring charges	$ 0.8