BALANCE SHEET ITEMS - Additional Information (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 28, 2018 USD ($)	Sep. 28, 2018 USD ($)	Apr. 01, 2018 USD ($)	Mar. 31, 2018 USD ($)
Components of acquired intangible assets
Inventories	$ 4,442,855	$ 4,442,855		$ 3,799,829
AutoLab lease term		5 years
Monthly interest rate		0.042
Deferred revenue	247,100	$ 247,100	$ 265,300	329,000
AutoLab
Components of acquired intangible assets
Other consideration transferred	$ 40,000
Voting interest (percentage)	50.00%
Equity method investment	$ 127,600	127,600
Gain from deconsolidation of a subsidiary entity		87,300
Fixed assets leased in sales-type lease	76,500	76,500
Net investment in lease	$ 88,200	88,200
Subscription agreement period	5 years
Asset-Backed Securitization Programs
Components of acquired intangible assets
Preferred purchase price receivable from asset-backed securitization programs	$ 304,300	304,300		445,400
Other Assets | Third-Party Private Company
Components of acquired intangible assets
Investment in subsidiaries	557,200	557,200		411,100
Working capital advances
Components of acquired intangible assets
Deferred revenue	226,500	226,500		153,600
Customer-related accruals
Components of acquired intangible assets
Deferred revenue	$ 369,800	$ 369,800		$ 439,000