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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Mar. 28, 2020 | Mar. 30, 2019 | Mar. 31, 2018 | Mar. 31, 2019
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Optional exemption term | 1 year |  |  |
Cash and cash equivalents maximum maturity period | 3 months |  |  |
Goodwill impairment | $ 0 | $ 0 |  |
Intangible asset impairment | 0 | 0 |  |
Impairment charges related to the discontinuance of certain capitalized software projects | 0 | 0 |  |
Other Liabilities |  |  |  |
VAT liabilities | 3,279,000 | 3,995,000 |  |
Forward contracts and interest rate swaps | 8,870,000 | 5,348,000 |  |
Deferred revenue | 28,843,000 | 27,279,000 |  |
Accrued taxes | 13,292,000 | 8,451,000 |  |
Operating Lease, Liability, Current, Other | 7,306,000 |  |  |
All other | 36,051,000 | 46,459,000 |  |
Total | 97,641,000 | 91,532,000 |  |
Other Long-Term Liabilities |  |  |  |
Unfunded pension liability | 13,083,000 | 13,766,000 |  |
Interest Rate Swaps, Noncurrent, Other | 9,475,000 | 0 |  |
Unrecognized tax benefit | 3,437,000 | 2,895,000 |  |
Transition tax liability | 5,374,000 | 6,305,000 |  |
Operating Lease, Liability, Noncurrent, Other | 52,014,000 | 0 |  |
All other | 5,721,000 | 5,814,000 |  |
Total | 89,104,000 | 28,780,000 |  |
Advertising expense | 4,300,000 | 4,500,000 | $ 3,100,000 |
Foreign currency losses | 2,900,000 | $ 2,300,000 | $ 200,000 |
Right-of-use assets | 52,236,000 |  |  |
Lease liabilities | $ 59,320,000 |  |  |
Minimum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Software capitalization term | 5 years |  |  |
Maximum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Software capitalization term | 10 years |  |  |
Building | Minimum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 30 years |  |  |
Building | Maximum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 40 years |  |  |
Building improvements | Minimum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 5 years |  |  |
Building improvements | Maximum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 20 years |  |  |
Plant equipment and machinery | Minimum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 3 years |  |  |
Plant equipment and machinery | Maximum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 15 years |  |  |
Office equipment and information technology | Minimum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 3 years |  |  |
Office equipment and information technology | Maximum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 10 years |  |  |
Haemonetics equipment | Minimum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 3 years |  |  |
Haemonetics equipment | Maximum |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |
Property, plant and equipment, useful life | 7 years |  |  |
Net Revenues | Customer Concentration Risk | Ten Largest Customers |  |  |  |
Other Long-Term Liabilities |  |  |  |
Concentration risk | 54.00% | 52.00% | 45.00% |
Net Revenues | Customer Concentration Risk | Two Plasma Customers, CSL Plasma Inc. (CSL) and Grifols S.A. (Grifols) |  |  |  |
Other Long-Term Liabilities |  |  |  |
Concentration risk | 27.00% | 27.00% | 26.00% |
ASU 2016-02 |  |  |  |
Other Long-Term Liabilities |  |  |  |
Right-of-use assets |  |  |  | $ 22,900,000
Lease liabilities |  |  |  | $ 22,700,000

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