RESTRUCTURING AND OTHER RELATED CHARGES (CREDITS) (Details) $ in Thousands	12 Months Ended
Mar. 31, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 439
Assumed Liability	9,495
Accruals	32,694
Cash Payments	(29,463)
Adjustments	207
Restructuring Reserve	13,372
Employee severance and related benefits
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	114
Assumed Liability	921
Accruals	25,033
Cash Payments	(19,897)
Adjustments	(33)
Restructuring Reserve	6,138
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	325
Assumed Liability	8,574
Accruals	2,241
Cash Payments	(4,146)
Adjustments	240
Restructuring Reserve	7,234
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Assumed Liability	0
Accruals	5,420
Cash Payments	(5,420)
Adjustments	0
Restructuring Reserve	0
Plantronics Legacy Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	439
Assumed Liability	9,495
Accruals	1,200
Cash Payments	(4,115)
Adjustments	8
Restructuring Reserve	7,027
Plantronics Legacy Plan [Member] \| Employee severance and related benefits
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	114
Assumed Liability	921
Accruals	1,101
Cash Payments	(1,747)
Adjustments	(197)
Restructuring Reserve	192
Plantronics Legacy Plan [Member] \| Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	325
Assumed Liability	8,574
Accruals	99
Cash Payments	(2,368)
Adjustments	205
Restructuring Reserve	6,835
Fiscal Year 2019 Plans [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Assumed Liability	0
Accruals	31,494
Cash Payments	(25,348)
Adjustments	199
Restructuring Reserve	6,345
Fiscal Year 2019 Plans [Member] \| Employee severance and related benefits
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Assumed Liability	0
Accruals	23,932
Cash Payments	(18,150)
Adjustments	164
Restructuring Reserve	5,946
Fiscal Year 2019 Plans [Member] \| Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Assumed Liability	0
Accruals	2,142
Cash Payments	(1,778)
Adjustments	35
Restructuring Reserve	399
Fiscal Year 2019 Plans [Member] \| Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Assumed Liability	0
Accruals	5,420
Cash Payments	(5,420)
Adjustments	0
Restructuring Reserve	$ 0

Restructuring Reserve, Assumed Liability

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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Amount of increase (decrease) in the restructuring reserve related to foreign currency translation (gain) loss and other increases (decreases).

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