Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Additional Information (Detail)

v3.21.2
Acquisitions - Additional Information (Detail)
 3 Months Ended 4 Months Ended 6 Months Ended
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 ($)
Sep. 30, 2021
USD ($)
shares
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
shares
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2021
€ / shares
Mar. 31, 2021
USD ($)
Business Acquisition [Line Items]                            
Reduction in fair value of contingent consideration [1]               $ (22,087,000) $ (10,757,000)   $ (22,087,000) $ (10,757,000)    
Acquisition purchase price liabilities [2]   $ 335,500,000           335,500,000   $ 335,500,000 335,500,000     $ 0
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         5,775,299        
Business acquisition, value of stock issued     $ 64,253,000 $ 92,640,000 $ 198,678,000         $ 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                        
Contingent consideration   $ 31,000,000           31,000,000   $ 31,000,000 $ 31,000,000      
Additional equity interest purchased               $ 21,000,000            
Cumulative voting interest acquired   99.40%           99.40%   99.40% 99.40%      
Acquisition costs               $ 8,116,000     $ 11,715,000      
Fyber | Plan                            
Business Acquisition [Line Items]                            
Business acquisition, stock issued (in shares) | shares               59,289   5,816,588        
Business acquisition, value of stock issued               $ 3,662,000            
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           $ 100,000,000                
Estimated contingent consideration, maximum           225,000,000                
Acquisition purchase price liabilities, unpaid cash consideration   $ 100,000,000       $ 100,000,000   100,000,000   $ 100,000,000 100,000,000      
Acquisition purchase price liabilities, unpaid cash consideration, payment term           6 months                
Contingent consideration   $ 204,500,000           204,500,000   $ 204,500,000 204,500,000      
Acquisition costs               620,000     $ 3,491,000      
Estimated contingent consideration, minimum           $ 200,000,000                
Reduction in fair value of contingent consideration               $ 8,913,000            
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                
AdColony | Subsequent event                            
Business Acquisition [Line Items]                            
Payment to acquire business $ 98,175,000                          
Appreciate                            
Business Acquisition [Line Items]                            
Total consideration             $ 20,003,000              
Business combination, retention bonus liability recognized             6,000,000,000              
Goodwill, tax deductible             $ 0              
[1] In the quarter ending June 30, 2021, the Company initiated two significant acquisitions. Please refer to Note 3 in the accompanying condensed consolidated financial statements.
[2] In the quarter ending June 30, 2021, the Company initiated two significant acquisitions. Please refer to Note 3 in the accompanying condensed consolidated financial statements.