SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands |
3 Months Ended |
12 Months Ended |
|
|
|
|
Mar. 31, 2018
USD ($)
|
Mar. 28, 2020
USD ($)
Customer
|
Mar. 30, 2019
USD ($)
|
Dec. 30, 2017
USD ($)
|
Mar. 31, 2019
USD ($)
|
Apr. 01, 2018
USD ($)
|
Jan. 01, 2017
USD ($)
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Foreign currency transaction gains (losses), net of related hedging impact |
$ 4,400
|
$ 2,900
|
$ (9,300)
|
$ 1,600
|
Ìý
|
Ìý
|
Ìý
|
| Cash equivalents |
Ìý
|
1,200,000
|
256,300
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Advertising expense |
152,800
|
756,300
|
700,500
|
571,200
|
Ìý
|
Ìý
|
Ìý
|
| Cooperate advertising expense |
5,800
|
20,200
|
22,600
|
35,200
|
Ìý
|
Ìý
|
Ìý
|
| Cost of goods sold |
1,008,641
|
4,690,520
|
4,656,326
|
3,849,248
|
Ìý
|
Ìý
|
Ìý
|
| Royalty expenses |
500
|
2,100
|
2,800
|
2,300
|
Ìý
|
Ìý
|
Ìý
|
| Gain recognized from sale-leaseback transactions |
Ìý
|
$ (11,329)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Term of contract |
Ìý
|
15 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Number of largest customers | Customer |
Ìý
|
10
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Accumulated other comprehensive income (loss) |
Ìý
|
$ 930,958
|
902,075
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Adoption of new accounting standard |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
$ (61,861)
|
$ 1,956
|
$ (237,764)
|
| Adoption of new accounting standard, ASU 2016-02 |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Adoption of new accounting standard |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
(2,491)
|
Ìý
|
Ìý
|
| Adoption of new accounting standard, ASU 2018-02 |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Adoption of new accounting standard |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
0
|
Ìý
|
Ìý
|
| New Accounting Pronouncement, Early Adoption, Effect | Adoption of new accounting standard, ASU 2018-02 |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Accumulated other comprehensive income (loss) |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
61,900
|
Ìý
|
Ìý
|
| Sales Revenue, Net | Customer Concentration Risk |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Concentration risk, percentage |
Ìý
|
17.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Sales Revenue, Net | Customer Concentration Risk | Largest Customer |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Concentration risk, percentage |
Ìý
|
3.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Minimum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Estimated useful lives of intangible assets |
Ìý
|
10 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Maximum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Estimated useful lives of intangible assets |
Ìý
|
24 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Machinery and equipment | Minimum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Estimated useful lives of assets |
Ìý
|
3 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Machinery and equipment | Maximum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Estimated useful lives of assets |
Ìý
|
10 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Building | Maximum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Estimated useful lives of assets |
Ìý
|
40 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Land and Building | Minimum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Leases term |
Ìý
|
3 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Land and Building | Maximum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Leases term |
Ìý
|
15 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Equipment | Minimum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Leases term |
Ìý
|
2 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Equipment | Maximum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Leases term |
Ìý
|
5 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Vehicles [Member] | Minimum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Leases term |
Ìý
|
1 year
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Vehicles [Member] | Maximum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Leases term |
Ìý
|
8 years
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Shipping and Handling |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Cost of goods sold |
$ 72,600
|
$ 409,400
|
$ 379,400
|
$ 256,000
|
Ìý
|
Ìý
|
Ìý
|
| Retained Earnings |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Adoption of new accounting standard |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
$ 1,956
|
$ (237,764)
|
| Retained Earnings | Adoption of new accounting standard, ASU 2016-02 |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Adoption of new accounting standard |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
(2,491)
|
Ìý
|
Ìý
|
| Retained Earnings | Adoption of new accounting standard, ASU 2018-02 |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Adoption of new accounting standard |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
61,861
|
Ìý
|
Ìý
|
| Retained Earnings | New Accounting Pronouncement, Early Adoption, Effect | Adoption of new accounting standard, ASU 2018-02 |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Property, Plant and Equipment [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Adoption of new accounting standard |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
$ 61,900
|
Ìý
|
Ìý
|