SEGMENT REPORTING - Depreciation Expense Included in Operating Performance (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Segment reporting information
Depreciation	$ 433,413	$ 434,432	$ 432,238
Operating segments | High Reliability Solutions
Segment reporting information
Depreciation	96,854	97,114	88,604
Operating segments | Industrial & Emerging Industries
Segment reporting information
Depreciation	92,606	75,366	70,814
Operating segments | Communications & Enterprise Compute
Segment reporting information
Depreciation	103,162	118,150	133,057
Operating segments | Consumer Technologies Group
Segment reporting information
Depreciation	104,298	110,276	110,379
Operating segments | Corporate and Other
Segment reporting information
Depreciation	$ 36,493	$ 33,526	$ 29,384