Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
Jul. 01, 2017	Jul. 02, 2016
Cash flows from operating activities:
Net income	$ 167,245	$ 163,049
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	11,232	11,625
Amortization	3,729	3,713
Stock-based compensation	32,036	29,404
Net gain on sale of available-for-sale securities	(446)	(209)
Amortization of debt discounts	1,676	3,016
Provision for deferred income taxes	26,058	(1,493)
Changes in assets and liabilities:
Accounts receivable, net	(24,342)	90,444
Inventories	11,691	(16,828)
Prepaid expenses and other current assets	(5,023)	3,044
Other assets	(8,690)	(3,572)
Accounts payable	(3,049)	11,784
Accrued liabilities	2,519	6,633
Income taxes payable	(12,910)	18,248
Deferred income on shipments to distributors	(10,818)	19,778
Net cash provided by operating activities	190,908	338,636
Cash flows from investing activities:
Purchases of available-for-sale securities	(832,705)	(891,186)
Proceeds from sale and maturity of available-for-sale securities	613,396	827,689
Purchases of property, plant and equipment	(9,926)	(20,637)
Other investing activities	(3,008)	(3,500)
Net cash used in investing activities	(232,243)	(87,634)
Cash flows from financing activities:
Payments for Repurchase of Common Stock	(67,062)	(100,154)
Payments Related to Tax Withholding for Share-based Compensation	(933)	(626)
Proceeds from issuance of common stock through various stock plans	2,003	11,923
Payment of dividends to stockholders	(87,303)	(83,599)
Repayment of convertible debt	(457,918)	0
Other financing activities	(663)	0
Proceeds from Issuance of Long-term Debt	745,871	0
Net cash provided by (used in) financing activities	133,995	(172,456)
Net increase in cash and cash equivalents	92,660	78,546
Cash and cash equivalents at beginning of period	966,695	503,816
Cash and cash equivalents at end of period	1,059,355	582,362
Supplemental disclosure of cash flow information:
Interest paid	5,795	7,875
Income taxes paid, net	$ 1,873	$ 1,832

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Increase (decrease) in deferred income on shipments to distributors.

+ References

No definition available.

+ Details

Name:	xlnx_IncreaseDecreaseInDeferredIncomeOnShipmentsToDistributors
Namespace Prefix:	xlnx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration