v3.22.4
Business Combinations - Narrative (Details) - USD ($)
12 Months Ended
Nov. 08, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Business Acquisition [Line Items]        
Goodwill   $ 37,938,000 $ 1,869,000  
Gain from step acquisition   44,306,000 $ 0 $ 0
Palantir Technologies Japan, K.K.        
Business Acquisition [Line Items]        
Fair value on acquisition date $ 149,000,000      
Equity interest immediately prior to the acquisition 74,500,000      
Noncontrolling interest 74,500,000      
Recognized identifiable assets acquired and liabilities assumed, cash 66,700,000      
Goodwill 36,100,000      
Recognized identifiable assets acquired and liabilities assumed, liabilities (21,000,000)      
Goodwill recognized expected to be deductible for income tax purposes   $ 0    
Gain from step acquisition $ 44,300,000      
Palantir Technologies Japan, K.K. | Minimum        
Business Acquisition [Line Items]        
Amortization period of finite-intangible assets (in years) 2 years      
Palantir Technologies Japan, K.K. | Maximum        
Business Acquisition [Line Items]        
Amortization period of finite-intangible assets (in years) 7 years      
Palantir Technologies Japan, K.K. | Customer Relationships, Reacquired Rights, Backlog        
Business Acquisition [Line Items]        
Recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles $ 34,700,000      
Palantir Technologies Japan, K.K. | Other        
Business Acquisition [Line Items]        
Recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles $ 32,500,000      
Palantir Technologies Japan, K.K.        
Business Acquisition [Line Items]        
Ownership percentage (in percent) 50.00%