Annual report pursuant to Section 13 and 15(d)

Acquisitions - Additional Information (Detail)

v3.22.1
Acquisitions - Additional Information (Detail)
2 Months Ended 3 Months Ended 4 Months Ended 10 Months Ended 11 Months Ended 12 Months Ended
Jan. 15, 2022
USD ($)
Oct. 26, 2021
USD ($)
Sep. 30, 2021
USD ($)
shares
Jul. 16, 2021
USD ($)
shares
Jun. 17, 2021
USD ($)
shares
May 25, 2021
USD ($)
shares
Apr. 29, 2021
USD ($)
Mar. 02, 2021
USD ($)
May 31, 2022
shares
Sep. 30, 2021
USD ($)
shares
Sep. 30, 2021
USD ($)
Sep. 30, 2021
USD ($)
shares
Mar. 31, 2022
USD ($)
Mar. 31, 2022
USD ($)
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Jul. 31, 2021
€ / shares
Business Acquisition [Line Items]                                    
Change in estimate of remaining contingent consideration                             $ 41,087,000 $ 15,751,000 $ 0  
Payment for contingent consideration liability                             0 $ 16,956,000 $ 0  
Revolving credit facility | Credit Agreement, BoA | Line of credit                                    
Business Acquisition [Line Items]                                    
Proceeds from line of credit $ 179,000,000                                  
Fyber                                    
Business Acquisition [Line Items]                                    
Percentage of voting interests acquired           95.10%                        
Total consideration           $ 600,000,000                        
Payment to acquire business           $ 124,336,000           $ 150,000,000            
Business acquisition, stock issued (in shares) | shares     18,000 1,040,364 1,500,000 3,216,935       59,289   5,775,299            
Business acquisition, value of stock issued       $ 64,253,000 $ 92,640,000 $ 198,678,000       $ 3,662,000   $ 359,233,000            
Contingent consideration, revenue threshold, minimum           100,000,000                        
Estimated contingent consideration, maximum           $ 50,000,000                        
Business acquisition, stock reduction (in shares) | shares     41,289                              
Change in estimate of remaining contingent consideration                             50,000,000      
Additional equity interest purchased                             $ 18,341,000      
Cumulative voting interest acquired                         99.50% 99.50% 99.50%      
Goodwill adjustment, decrease                         $ 4,032,000          
Acquisition costs                             $ 18,698,000      
Fyber | Subsequent event                                    
Business Acquisition [Line Items]                                    
Settlement of contingent consideration liability (in shares) | shares                 1,200,000                  
Fyber | Plan                                    
Business Acquisition [Line Items]                                    
Business acquisition, stock issued (in shares) | shares                       5,816,588            
Fyber | Minority Fyber Shareholders                                    
Business Acquisition [Line Items]                                    
Business acquisition, per share price (in EUR per share) | € / shares                                   € 0.84
Fyber | Publisher relationships                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life           20 years                        
Fyber | Developed technology                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life           7 years                        
Fyber | Trade names                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life           7 years                        
Fyber | Customer relationships                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life           3 years                        
AdColony                                    
Business Acquisition [Line Items]                                    
Payment to acquire business   $ 98,175,000         $ 100,000,000                      
Estimated contingent consideration, maximum             225,000,000                      
Change in estimate of remaining contingent consideration                     $ (8,913,000)              
Goodwill adjustment, decrease                           $ 3,502,000        
Acquisition costs                             $ 4,214,000      
Acquisition purchase price liabilities, unpaid cash consideration             $ 100,000,000                      
Acquisition purchase price liabilities, unpaid cash consideration, payment term             6 months                      
Estimated contingent consideration, minimum             $ 200,000,000                      
Contingent consideration     $ 204,500,000             $ 204,500,000 $ 204,500,000 $ 204,500,000            
Payment for contingent consideration liability $ 204,500,000                                  
AdColony | Publisher relationships                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life             10 years                      
AdColony | Developed technology                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life             7 years                      
AdColony | Trade names                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life             7 years                      
AdColony | Minimum                                    
Business Acquisition [Line Items]                                    
Total consideration             $ 400,000,000                      
AdColony | Minimum | Customer relationships                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life             8 years                      
AdColony | Maximum                                    
Business Acquisition [Line Items]                                    
Total consideration             $ 425,000,000                      
AdColony | Maximum | Customer relationships                                    
Business Acquisition [Line Items]                                    
Intangible assets acquired, useful life             15 years                      
Appreciate                                    
Business Acquisition [Line Items]                                    
Total consideration               $ 20,003,000                    
Business combination, retention bonus liability recognized               6,000,000,000                    
Goodwill, tax deductible               $ 0