Quarterly report pursuant to Section 13 or 15(d)

Fathom OpCo Predecessor Period Acquisitions - Summit and PPC - Additional Information (Details)

v3.22.2.2
Fathom OpCo Predecessor Period Acquisitions - Summit and PPC - Additional Information (Details) - USD ($)
$ in Thousands
Dec. 23, 2021
Apr. 30, 2021
Feb. 01, 2021
Business Acquisition [Line Items]      
Business combination acquisition costs expensed $ 19,010    
P P C [Member]      
Business Acquisition [Line Items]      
Business acquisition, percentage of interests acquired   100.00%  
Business combination acquisition costs expensed   $ 984  
Payment of transaction fee to affiliate   $ 264  
Summit [Member]      
Business Acquisition [Line Items]      
Business acquisition, percentage of interests acquired     100.00%
Business combination acquisition costs expensed     $ 892
Payment of transaction fee to affiliate     $ 225