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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Apr. 02, 2016 | Mar. 31, 2018 | Apr. 01, 2017 | Apr. 02, 2016 | Mar. 28, 2015 | Apr. 30, 2018
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |  |  |
Term of medical device excise tax suspension |  | 2 years |  |  | 2 years |
Cash and cash equivalents maximum maturity period |  | 3 months |  |  |  |
Goodwill impairment |  |  | $ 56,989,000 |  |  |
Transfer of goodwill between segments |  |  | 0 |  |  |
Intangible asset impairment |  | $ 0 | 4,800,000 | $ 25,800,000 |  |
Impairment charges related to the discontinuance of certain capitalized software projects | $ 6,000,000 | 0 | 4,000,000 |  |  |
Other Liabilities |  |  |  |  |  |
VAT liabilities |  | 2,932,000 | 4,051,000 |  |  |
Forward contracts |  | 1,583,000 | 966,000 |  |  |
Deferred revenue |  | 25,814,000 | 26,485,000 |  |  |
Accrued taxes |  | 5,340,000 | 4,407,000 |  |  |
All other |  | 29,991,000 | 27,741,000 |  |  |
Total |  | 65,660,000 | 63,650,000 |  |  |
Other Long-Term Liabilities |  |  |  |  |  |
Unfunded pension liability |  | 14,045,000 | 14,060,000 |  |  |
Unrecognized tax benefit |  | 2,850,000 | 1,627,000 |  |  |
Transition tax liability |  | 7,837,000 | 0 |  |  |
All other |  | 9,526,000 | 6,494,000 |  |  |
Total |  | 34,258,000 | 22,181,000 |  |  |
Advertising expense |  | 3,100,000 | 2,500,000 | 3,900,000 |  |
Foreign currency losses |  | $ 200,000 | 1,800,000 | 1,400,000 |  |
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 |  |  |  |
All Other |  |  |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |  |  |
Goodwill impairment |  |  | 56,989,000 |  |  |
Transfer of goodwill between segments |  |  | (20,545,000) |  |  |
EMEA |  |  |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |  |  |
Goodwill impairment |  |  | 0 | $ 66,300,000 |  |
Transfer of goodwill between segments |  |  | $ 20,545,000 |  |  |
Revenue | Customer Concentration Risk | One Customer |  |  |  |  |  |
Other Long-Term Liabilities |  |  |  |  |  |
Concentration risk |  | 14.00% | 14.00% | 11.00% |  |
Accounting Standards Update 2014-09 | Revenue | Product Concentration Risk | Software |  |  |  |  |  |
Other Long-Term Liabilities |  |  |  |  |  |
Concentration risk |  | 8.60% |  |  |  |
Accounting Standards Update 2016-09 |  |  |  |  |  |
Other Long-Term Liabilities |  |  |  |  |  |
Cumulative-effect adjustment |  |  | $ 1,600,000 |  |  |
Subsequent Event | Accounting Standards Update 2014-09 |  |  |  |  |  |
Summary of Significant Accounting Pronouncements [Line Items] |  |  |  |  |  |
Increase to retained earnings |  |  |  |  |  | $ 5,000,000

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