Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 405,750	$ 330,995	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	31,123	22,964
Amortization	15,477	7,161
Stock-based compensation	70,553	68,408
Amortization of debt discounts	591	1,964
Provision for deferred income taxes	4,825	37,640	[1]
Others	1,884	744
Changes in assets and liabilities:
Accounts receivable, net	9,263	(42,105)	[1]
Inventories	(6,887)	11,504
Prepaid expenses and other current assets	(5,744)	(18,383)
Other assets	(17,616)	(12,645)
Accounts payable	4,525	(20,585)
Accrued liabilities	13,116	23,346	[1]
Income taxes payable	(37,569)	(17,960)
Net cash provided by operating activities	489,291	393,048
Cash flows from investing activities:
Purchases of available-for-sale securities	(819,512)	(1,367,972)
Proceeds from sale and maturity of available-for-sale securities	780,567	1,257,571
Purchases of property, plant and equipment and other intangibles	(40,533)	(22,149)
Acquisition of business, net of cash acquired	(223,535)	0
Other investing activities	(25,277)	(8,461)
Net cash used in investing activities	(328,290)	(141,011)
Cash flows from financing activities:
Repurchases of common stock	(160,536)	(237,516)
Taxes paid related to net share settlements of restricted stock units	(39,494)	(42,053)
Proceeds from issuance of common stock through various stock plans	18,416	19,358
Payment of dividends to stockholders	(181,752)	(174,260)
Repayment of convertible debt	0	(457,918)
Proceeds from Issuance of Long-term Debt	0	745,175
Other financing activities	(2,325)	(1,325)
Net cash used in financing activities	(365,691)	(148,539)
Net (decrease) increase in cash and cash equivalents	(204,690)	103,498
Cash and cash equivalents at beginning of period	2,179,328	966,695
Cash and cash equivalents at end of period	1,974,638	1,070,193
Supplemental disclosure of cash flow information:
Interest paid	33,986	18,608
Income taxes paid, net	$ 78,948	$ 14,789

[1] Prior year balances have been restated to reflect the retrospective application of the new revenue recognition accounting standard. Please refer to "Note 2. Recent Accounting Changes and Accounting Pronouncements."