SUPPLEMENTAL CASH FLOW DISCLOSURES (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Net cash paid for:
Interest	$ 171,719	$ 190,204	$ 152,750
Income taxes	98,943	134,178	91,846
Non-cash investing and financing activity:
Unpaid purchases of property and equipment	104,260	111,989	128,044
Elementum
Non-cash investing and financing activity:
Non-cash investment in Elementum	0	0	132,679
Wink Labs Inc
Non-cash investing and financing activity:
Non-cash proceeds from sales of Wink	0	0	59,000
Bright Machines
Non-cash investing and financing activity:
Non-cash investment in Elementum	0	127,641	0
Capital lease obligation	$ 22,806	$ 34,828	$ 0

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