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STOCK-BASED COMPENSATION: Stock-based compensation activity, by award type (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jun. 30, 2019 | Jun. 30, 2018
Share-based compensation |  |
Other non-employee stock-based compensation | $ 300 | $ 300
Total non-cash stock-based compensation | 18,600 | 17,800
Stock-based compensation of discontinued operations | 0 | 2,500
Total non-cash stock-based compensation included in the condensed consolidated statement of equity | 15,064 | 16,811
Cost of revenue |  |
Share-based compensation |  |
Total non-cash stock-based compensation | 800 | 700
Research and development |  |
Share-based compensation |  |
Total non-cash stock-based compensation | 4,000 | 4,400
Sales and marketing |  |
Share-based compensation |  |
Total non-cash stock-based compensation | 8,900 | 9,900
General and administrative |  |
Share-based compensation |  |
Total non-cash stock-based compensation | 4,900 | 2,800
Stock options |  |
Share-based compensation |  |
Share-based compensation expense | 700 | 1,000
Performance stock |  |
Share-based compensation |  |
Share-based compensation expense | 0 | 300
Restricted stock units |  |
Share-based compensation |  |
Share-based compensation expense | 11,100 | 8,500
Arbor Holdback Agreement | Arbor |  |
Share-based compensation |  |
Share-based compensation expense | 2,600 | 3,800
Pacific Data Partners, LLC Agreement Plan | Pacific Data Partners LLC |  |
Share-based compensation |  |
Share-based compensation expense | 3,900 | 3,900
Liability-based equity awards |  |
Share-based compensation |  |
Total non-cash stock-based compensation | $ (3,500) | $ (3,500)

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