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INTANGIBLE ASSETS AND GOODWILL | 12 Months Ended
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Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
INTANGIBLE ASSETS AND GOODWILL | INTANGIBLE ASSETS AND GOODWILL The carrying value of intangible assets consisted of the following:
| March 31, 2021 |  | March 31, 2020
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Technology | $ | 33,960 |  |  | $ | (21,458) |  |  | $ | 12,502 |  |  | $ | 33,932 |  |  | $ | (16,312) |  |  | $ | 17,620 |
Customer relationships | 11,969 |  |  | (7,341) |  |  | 4,628 |  |  | 11,409 |  |  | (5,412) |  |  | 5,997 |
Trade names and domains | 988 |  |  | (988) |  |  | — |  |  | 983 |  |  | (599) |  |  | 384 |
Total acquired identifiable intangible assets | $ | 46,917 |  |  | $ | (29,787) |  |  | $ | 17,130 |  |  | $ | 46,324 |  |  | $ | (22,323) |  |  | $ | 24,001 |
As of March 31, 2021, the weighted average remaining useful life for technology, customer relationship, and trade names and domains was 4.4 years, 5.2 years, and 0.0 years, respectively. Amortization expense for related intangible assets was $6.9 million, $8.8 million, and $6.2 million for the years ended March 31, 2021, 2020 and 2019, respectively. During the year ended March 31, 2020, the Company wrote off approximately $11.3 million of fully amortized intangible assets and the corresponding accumulated amortization. At March 31, 2021, annual amortization of definite lived intangible assets, based upon existing intangible assets and current useful lives, is estimated to be the following:
| Amount
2022 | $ | 4,708 |
2023 | 3,156 |
2024 | 2,851 |
2025 | 2,851 |
2026 and thereafter | 3,564 |
Total | $ | 17,130 |
The following table provides a summary of the changes in the carrying amounts of goodwill:
| Total
Balance at March 31, 2019 | $ | 39,694 |
Additions due to acquisitions | 91,060 |
Foreign currency translation | (2,454) |
Balance at March 31, 2020 | 128,300 |
Foreign currency translation | 3,220 |
Balance at March 31, 2021 | $ | 131,520 |
The Company conducted its annual impairment tests of goodwill in the fourth quarters of fiscal years 2021, 2020, and 2019, and determined that no adjustment to the carrying value of goodwill was required.

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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