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SHARE-BASED COMPENSATION (Tables)
 3 Months Ended
Jun. 30, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-Based Compensation Expense
The following is a summary of share-based compensation expense including restricted stock units and performance-based restricted stock units granted pursuant to the Company's Amended 2007 Plan and the Amended 2019 Plan, and employee stock purchases made under the Company's 2011 Amended and Restated Employee Stock Purchase Plan (ESPP), based on estimated fair values within the applicable cost and expense lines identified below (in thousands):
Three Months Ended
June 30,
 20242023
Cost of product revenue$431 $372 
Cost of service revenue2,889 2,539 
Research and development5,886 5,386 
Sales and marketing7,504 7,284 
General and administrative4,488 4,263 
$21,198 $19,844