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STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY (Tables)
 9 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
The following table presents stock-based compensation expense (dollars in thousands):
 Three Months Ended December 31,Nine Months Ended December 31,
 2022202120222021
Cost of service revenue$2,137 $2,293 $7,237 $6,606 
Cost of other revenue893 1,233 2,929 3,507 
Research and development7,139 8,472 22,894 26,628 
Sales and marketing6,582 11,626 21,498 38,676 
General and administrative4,330 10,113 18,958 30,742 
Total$21,081 $33,737 $73,516 $106,159 
Disclosure of Share-Based Compensation Arrangements By Share-Based Payment Award The following table presents the stock option activity (shares in thousands):
Number of
Shares		Weighted Average Exercise Price Per Share
Outstanding at March 31, 2022867 $10.67 
Exercised(11)5.87 
Canceled/Forfeited(158)10.97 
Outstanding at December 31, 2022698 $10.68 
Vested and expected to vest December 31, 2022698 $10.68 
Exercisable at December 31, 2022698 $10.68 
The following table presents the RSU activity (shares in thousands):
Number of
Shares		Weighted
Average Grant
Date Fair Value		Weighted Average
Remaining Contractual
Term (in Years)
Balance at March 31, 20229,375 $20.41 2.11
Granted13,096 5.71 
Vested and released(4,118)19.91 
Forfeited(2,926)13.67 
Balance at December 31, 202215,427 $9.35 2.03
The following table presents the PSU activity (shares in thousands):
Number of
Shares		Weighted
Average Grant
Date Fair Value		Weighted Average
Remaining Contractual
Term (in Years)
Balance at March 31, 20221,026 $35.36 0.89
Granted877 7.31 
Granted for performance achievement1
— 
Vested and released(128)25.65 
Forfeited(921)31.56 
Balance at December 31, 2022854 $12.11 1.67
1 Represents additional PSUs awarded as a result of the achievement of performance goals above the performance targets established at grant.