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INTANGIBLE ASSETS: (Tables)
 6 Months Ended
Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Amortization Activity of Intangible Assets The following table shows the amortization activity of intangible assets (dollars in thousands):
September 30, 2022March 31, 2022
Developed technology, gross$84,033 $84,146 
Accumulated amortization(71,760)(67,980)
Net developed technology$12,273 $16,166 
Customer relationship/trade name, gross$43,467 $43,490 
Accumulated amortization(42,007)(40,582)
Net customer/trade name$1,460 $2,908 
Publisher/data supply relationships, gross$39,800 $39,800 
Accumulated amortization(36,139)(32,156)
Net publisher/data supply relationships$3,661 $7,644 
Total intangible assets, gross$167,300 $167,436 
Total accumulated amortization(149,906)(140,718)
Total intangible assets, net$17,394 $26,718 
Schedule of Estimated Future Amortization Expenses related to Purchases and Other Intangible Assets
The following table presents the estimated future amortization expenses related to intangible assets. The amount for 2023 represents the remaining six months ending March 31, 2023. All other periods represent fiscal years ending March 31 (dollars in thousands).

Fiscal Year:
2023$7,566 
20246,807 
20253,021 
$17,394