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SHARE-BASED COMPENSATION (Tables)
3 Months Ended
Jun. 30, 2025
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,
 20252024
Cost of product revenue$413 $431 
Cost of service revenue2,747 2,889 
Research and development5,532 5,886 
Sales and marketing6,889 7,504 
General and administrative4,378 4,488 
$19,959 $21,198