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SOFTWARE:
 9 Months Ended
Dec. 31, 2019
Research and Development [Abstract]  
SOFTWARE SOFTWARE:
Software is summarized as follows (dollars in thousands):
December 31, 2019March 31, 2019
Internally developed computer software$51,525  $51,525  
Acquired developed technology78,500  54,000  
130,025  105,525  
Less accumulated amortization105,134  98,664  
$24,891  $6,861  
Amortization expense was $6.5 million and $7.3 million for the nine months ended December 31, 2019 and 2018, respectively, including $5.2 million and $5.6 million, respectively, related to acquired developed technology as part of recent acquisitions.