ACQUISITIONS: Schedule of Pro Forma Financial Information (Details) - Data Plus Math Corporation - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues	$ 80,458	$ 277,063	$ 207,813
Net earnings (loss)	$ 1,053,849	$ (132,279)	$ 1,064,413
Pro forma basic earnings (loss) per share, (in dollars per share)	$ 13.62	$ (1.94)	$ 13.78
Pro forma diluted earnings (loss) per share, (in dollars per share)	$ 13.62	$ (1.94)	$ 13.78

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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