Consolidated Condensed Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 27, 2014	Dec. 28, 2013
Cash flows from operating activities:
Net income	$ 33,829	$ 95,509
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	21,978	10,846
Stock compensation expense	29,813	17,713
Deferred income taxes	24,931	36,914
Loss on retirement or write-off of long-lived assets	949	165
Excess tax benefit from employee stock options	(24,508)	(5,113)
Other non-cash charges	16,129	3,996
Net change in operating assets and liabilities:
Accounts receivable, net	(73,122)	(39,500)
Inventories	26,377	49,315
Other current assets	2,733	(5,785)
Accounts payable and other accrued liabilities	888	(1,062)
Deferred income	(765)	27
Income taxes payable	484
Net cash provided by operating activities	59,716	163,025
Cash flows from investing activities:
Proceeds from sale of available for sale marketable securities	272,510	69,394
Purchases of available for sale marketable securities	(29,256)	(152,005)
Purchases of property, equipment and software	(19,927)	(10,703)
Investments in technology	(1,346)	(2,082)
Loss on foreign exchange hedging activities	(11,976)
Increase in deposits and other assets	(692)	(2,385)
Net cash used in investing activities	(234,825)	(118,213)
Cash flows from financing activities:
Proceeds from long-term revolver	226,439
Principal payments on long-term revolver	(26,000)
Debt issuance costs	(2,825)
Issuance of common stock, net of shares withheld for taxes	2,454	754
Repurchase of stock to satisfy employee tax withholding obligations	(4,175)
Repurchase and retirement of common stock	(10,535)	(42,391)
Excess tax benefit from employee stock options	24,508	5,113
Net cash provided by (used in) financing activities	209,866	(36,524)
Net increase in cash and cash equivalents	34,757	8,288
Cash and cash equivalents at beginning of period	31,850	66,402
Cash and cash equivalents at end of period	66,607	74,690
Wolfson[Member]
Cash flows from investing activities:
Acquisition, net of cash obtained	(444,138)
Acoustic Technologies [Member]
Cash flows from investing activities:
Acquisition, net of cash obtained		$ (20,432)