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Fathom OpCo Predecessor Period Acquisitions - Centex and Laser - Additional Information (Details)

v3.22.2.2
Fathom OpCo Predecessor Period Acquisitions - Centex and Laser - Additional Information (Details) - USD ($)
$ in Thousands
Dec. 23, 2021
Apr. 30, 2021
Business Acquisition [Line Items]    
Business combination acquisition costs expensed $ 19,010  
Centex [Member]    
Business Acquisition [Line Items]    
Business acquisition, percentage of interests acquired   100.00%
Laser [Member]    
Business Acquisition [Line Items]    
Business acquisition, percentage of interests acquired   100.00%
Centex and Laser [Member] | Incodema Holdings Llc [Member]    
Business Acquisition [Line Items]    
Business combination acquisition costs expensed   $ 1,226
Payment of transaction fee to affiliate   $ 190