| Goodwill and Intangible Assets | Goodwill and Intangible Assets Goodwill Changes in the carrying amount of goodwill, net, by segment follow: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | ODM |  | IAM-A |  | IAM-F |  | Consolidated |  
| Goodwill as of March 31, 2021 |  | $ | 80,176 |  |  | $ | — |  |  | $ | — |  |  | $ | 80,176 |  |  
| Purchase of AdColony |  | — |  |  | 202,552 |  |  | — |  |  | 202,552 |  |  
| Purchase of Fyber |  | — |  |  | — |  |  | 303,015 |  |  | 303,015 |  |  
| Foreign currency translation |  | — |  |  | (4,111) |  |  | (9,025) |  |  | (13,136) |  |  
| Goodwill as of June 30, 2021 |  | $ | 80,176 |  |  | $ | 198,441 |  |  | $ | 293,990 |  |  | $ | 572,607 |  | Intangible Assets The components of intangible assets as of June 30, 2021 and March 31, 2021 were as follows: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | As of June 30, 2021 |  
|  |  | (Unaudited) |  
|  |  | Weighted-Average Remaining Useful Life |  | Cost |  | Accumulated Amortization |  | Net |  
| Customer relationships |  | 8.96 years |  | $ | 178,271 |  |  | $ | (6,902) |  |  | $ | 171,369 |  |  
| Developed technology |  | 7.01 years |  | 155,984 |  |  | (13,723) |  |  | 142,261 |  |  
| Trade names |  | 6.94 years |  | 69,244 |  |  | (1,592) |  |  | 67,652 |  |  
| Publisher relationships |  | 19.51 years |  | 107,588 |  |  | (510) |  |  | 107,078 |  |  
| Total |  |  |  | $ | 511,087 |  |  | $ | (22,727) |  |  | $ | 488,360 |  | The Company recorded amortization expense of $7,101 during the three months ended June 30, 2021 and $670 during the three months ended June 30, 2020 in general and administrative expenses on the condensed consolidated statements of operations and comprehensive income.
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | As of March 31, 2021 |  
|  |  | Weighted-Average Remaining Useful Life |  | Cost |  | Accumulated Amortization |  | Net |  
| Customer relationships |  | 16.81 years |  | $ | 46,400 |  |  | $ | (4,171) |  |  | $ | 42,229 |  |  
| Developed technology |  | 9.12 years |  | 20,526 |  |  | (11,141) |  |  | 9,385 |  |  
| Trade names |  | 9.92 years |  | 2,000 |  |  | (314) |  |  | 1,686 |  |  
| Total |  |  |  | $ | 68,926 |  |  | $ | (15,626) |  |  | $ | 53,300 |  | Estimated amortization expense in future fiscal years is expected to be: 
|  |  |  |  |  |  |  |  |  |  
| Remainder of fiscal year 2022 |  | $ | 41,942 |  |  
| Fiscal year 2023 |  | 55,923 |  |  
| Fiscal year 2024 |  | 55,923 |  |  
| Fiscal year 2025 |  | 47,434 |  |  
| Fiscal year 2026 |  | 45,448 |  |  
| Thereafter |  | 241,690 |  |  
| Total |  | $ | 488,360 |  |  |