Cirrus Logic (CRUS) 10-Q 1 Nov 18 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Sep. 29, 2018	Oct. 26, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Entity Registrant Name	CIRRUS LOGIC INC
Entity Central Index Key	772,406
Entity Filer Category	Large Accelerated Filer
Document Period End Date	Sep. 29, 2018
Document Fiscal Year Focus	2,019
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--03-30
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		59,844,299

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 29, 2018	Mar. 31, 2018
Current assets:
Cash and cash equivalents	$ 195,857	$ 235,604
Marketable securities	48,701	26,397
Accounts receivable, net	206,789	100,801
Inventories	142,315	205,760
Prepaid assets	31,627	31,235
Other current assets	17,283	13,877
Total current assets	642,572	613,674
Long-term marketable securities	151,207	172,499
Property and equipment, net	193,218	191,154
Intangibles, net	86,769	111,547
Goodwill	287,368	288,718
Deferred tax assets	13,733	14,716
Other assets	29,527	37,809
Total assets	1,404,394	1,430,117
Current liabilities:
Accounts payable	88,473	69,850
Accrued salaries and benefits	30,154	35,721
Software license agreements	19,905	21,981
Other accrued liabilities	17,370	12,657
Total current liabilities	155,902	140,209
Long-term liabilities:
Software license agreements	19,453	27,765
Non-current income taxes	79,127	92,753
Other long-term liabilities	6,937	7,662
Total long-term liabilities	105,517	128,180
Stockholders' equity:
Capital stock	1,338,586	1,312,434
Accumulated deficit	(182,453)	(139,345)
Accumulated other comprehensive loss	(13,158)	(11,361)
Total stockholders' equity	1,142,975	1,161,728
Total liabilities and stockholders' equity	$ 1,404,394	$ 1,430,117

Consolidated Condensed Statemen

Consolidated Condensed Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Income Statement [Abstract]
Net sales	$ 366,305	$ 425,537	$ 620,788	$ 746,272
Cost of sales	181,186	214,255	311,110	373,274
Gross profit	185,119	211,282	309,678	372,998
Operating expenses
Research and development	96,381	90,353	194,313	173,910
Selling, general and administrative	33,160	30,041	65,944	60,900
Total operating expenses	129,541	120,394	260,257	234,810
Income from operations	55,578	90,888	49,421	138,188
Interest income	1,805	1,005	3,511	1,934
Interest expense	(280)	(280)	(539)	(615)
Other expense	(378)	(1,116)	(168)	(1,135)
Income before income taxes	56,725	90,497	52,225	138,372
Provision (benefit) for income taxes	(1,448)	17,197	(1,676)	22,160
Net income	$ 58,173	$ 73,300	$ 53,901	$ 116,212
Basic earnings per share (in dollars per share)	$ 0.96	$ 1.16	$ 0.88	$ 1.82
Diluted earnings per share (in dollars per share)	$ 0.93	$ 1.10	$ 0.86	$ 1.74
Basic weighted average common shares outstanding (in shares)	60,472	63,431	60,967	63,764
Diluted weighted average common shares outstanding (in shares)	62,431	66,360	62,810	66,761

Consolidated Condensed Statem_2

Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 58,173	$ 73,300	$ 53,901	$ 116,212
Other comprehensive income (loss), before tax
Foreign currency translation gain (loss)	204	3,021	(1,986)	3,311
Unrealized gain on marketable securities	198	14	239	48
Actuarial gain on pension plan	0	0	0	792
Provision for income taxes	(42)	(1)	(50)	(151)
Comprehensive income	$ 58,533	$ 76,334	$ 52,104	$ 120,212

Consolidated Condensed Statem_3

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017
Cash flows from operating activities:
Net income	$ 53,901	$ 116,212
Adjustments to reconcile net income to net cash generated by operating activities:
Depreciation and amortization	45,296	39,031
Stock compensation expense	25,925	23,695
Deferred income taxes	(1,497)	346
Loss on retirement or write-off of long-lived assets	883	377
Charges for defined benefit pension plan	0	658
Other non-cash adjustments	216	(3,819)
Net change in operating assets and liabilities:
Accounts receivable, net	(100,448)	(112,406)
Inventories	63,054	(42,896)
Other assets	(4,001)	5,056
Accounts payable and other accrued liabilities	(516)	49,658
Income taxes payable	(3,863)	4,797
Net cash generated by operating activities	78,950	80,709
Cash flows from investing activities:
Maturities and sales of available-for-sale marketable securities	30,295	109,069
Purchases of available-for-sale marketable securities	(31,118)	(158,216)
Purchases of property, equipment and software	(18,842)	(25,781)
Investments in technology	(2,248)	(21,809)
Net cash used in investing activities	(21,913)	(96,737)
Cash flows from financing activities:
Principal payments on long-term revolver	0	(60,000)
Issuance of common stock, net of shares withheld for taxes	228	5,695
Repurchase of stock to satisfy employee tax withholding obligations	(2,015)	(5,085)
Repurchase and retirement of common stock	(94,997)	(95,550)
Net cash used in financing activities	(96,784)	(154,940)
Net decrease in cash and cash equivalents	(39,747)	(170,968)
Cash and cash equivalents at beginning of period	235,604	351,166
Cash and cash equivalents at end of period	$ 195,857	$ 180,198

Basis of Presentation

Basis of Presentation	6 Months Ended
	Sep. 29, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated condensed financial statements have been prepared by Cirrus Logic, Inc. (“Cirrus Logic,” “we,” “us,” “our,” or the “Company”) pursuant to the rules and regulations of the Securities and Exchange Commission (the “Commission”). The accompanying unaudited consolidated condensed financial statements do not include complete footnotes and financial presentations. As a result, these financial statements should be read along with the audited consolidated financial statements and notes thereto for the year ended March 31, 2018 , included in our Annual Report on Form 10-K filed with the Commission on May 30, 2018. In our opinion, the financial statements reflect all material adjustments, including normal recurring adjustments, necessary for a fair presentation of the financial position, operating results and cash flows for those periods presented. The preparation of financial statements in conformity with United States (“U.S.”) generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect reported assets, liabilities, revenues and expenses, as well as disclosure of contingent assets and liabilities. Actual results could differ from those estimates and assumptions. Moreover, the results of operations for the interim periods presented are not necessarily indicative of the results that may be expected for the entire year. Additionally, certain prior period amounts have been reclassified to conform to current year presentation, with no impact to earnings.

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	6 Months Ended
	Sep. 29, 2018
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (ASC Topic 606) . The purpose of this ASU is to converge revenue recognition requirements per U.S. GAAP and International Financial Reporting Standards (“IFRS”). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date after public comment supported a proposal to delay the effective date of this ASU to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. The Company completed the process of reviewing our customers’ contracts in respect of performance obligation identification and satisfaction, pricing, warranties, and return rights, among other considerations, in the first quarter of fiscal year 2019. According to the standard, the Company could adopt by full retrospective method, which applies retrospectively to each prior period presented, or by modified retrospective method with the cumulative effect adjustment recognized in beginning retained earnings as of the date of adoption. The Company adopted this standard using the modified retrospective adoption method in the first quarter of fiscal year 2019 with no income statement impact, and therefore no beginning retained earnings impact. See Note 8 - Revenues for additional details. The effects of the changes made to our balance sheet at adoption were as follows (in thousands): Balance at March 31, 2018 Impact from ASU 2014-09 Adoption Balance at April 1, 2018 Financial statement line item: Accounts receivable $ 100,801 $ 5,539 $ 106,340 Inventories 205,760 (391 ) 205,369 Other current assets 13,877 391 14,268 Other accrued liabilities $ (12,657 ) $ (5,539 ) $ (18,196 ) In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The FASB issued this update to increase transparency and comparability by recognizing lease assets and lease liabilities on the balance sheet and disclosing key leasing arrangement details . Lessees would recognize operating leases on the balance sheet under this ASU — with the future lease payments recognized as a liability, measured at present value, and the right-of-use asset recognized for the lease term. A single lease cost would be recognized over the lease term. For initial terms of less than twelve months, a lessee would be permitted to make an accounting policy election to recognize lease expense for such leases generally on a straight-line basis over the lease term. This ASU is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The modified retrospective approach was previously the only allowed adoption method. In July 2018, the FASB issued the related ASU 2018-10 - Leases (Topic 842): Targeted Improvements . This ASU offers a new transition adoption method, which will not require adjustments to comparative periods. The Company currently intends to adopt using the latter method. We expect that most of our operating lease commitments will be subject to the new standard and recognized as right-of-use assets and operating lease liabilities upon adoption, which will materially increase the total assets and total liabilities that we report relative to such amounts prior to adoption of this ASU. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . This ASU requires credit losses on available-for-sale debt securities to be presented as an allowance rather than a write-down. Unlike current U.S. GAAP, the credit losses could be reversed with changes in estimates, and recognized in current year earnings. This ASU is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods. Early adoption is permitted for annual periods beginning after December 15, 2018, including interim periods. The Company is currently evaluating the impact of this ASU but does not expect a material impact to the financial statements upon adoption. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . This ASU eliminates step two of the goodwill impairment test. An impairment charge is to be recognized for the amount by which the current value exceeds the fair value. This ASU is effective for annual periods beginning after December 15, 2019, including interim periods. Early adoption is permitted, for interim or annual goodwill impairment tests performed after January 1, 2017, and should be applied prospectively. An entity is required to disclose the nature of and reason for the change in accounting principle upon transition. That disclosure should be provided in the first annual period and in the interim period within the first annual period when the entity initially adopts the amendments in this update. The Company is currently evaluating the impact of this ASU, but does not expect a material impact to the financial statements upon adoption. In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. This ASU requires an employer to disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on income statement presentation for service cost and other components of net benefit cost. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods. The Company adopted this ASU in the first quarter of fiscal year 2019. The expected impact of adoption is discussed in Note 9, to be recorded upon the buy-out settlement of the defined benefit pension plan. In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting . This ASU applies to any company that changes the terms or conditions of a share-based award, considered a modification. Modification accounting would be applied unless certain conditions were met related to the fair value of the award, the vesting conditions and the classification of the modified award. This ASU is effective for annual periods beginning after December 15, 2017, with early adoption permitted. The standard should be applied prospectively to an award modified on or after the adoption date. The Company adopted this ASU in the first quarter of fiscal year 2019 with no financial statement impact as no awards were modified in the current period. In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income . This ASU allows for the classification of stranded tax effects resulting from the Tax Cuts and Jobs Act (the “Tax Act”) from accumulated other comprehensive income to retained earnings. This ASU is effective for annual periods beginning after December 15, 2018, with early adoption permitted. The standard should be applied in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in tax rate is recognized. The Company is currently evaluating the impact of this ASU, but does not expect a material impact to the financial statements upon adoption. In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting . This ASU expands the scope of Topic 718 to include all share-based payment transactions for acquiring goods and services from nonemployees and will apply to all share-based payment transactions in which the grantor acquires goods and services to be used or consumed in its own operations by issuing share-based payment awards. This ASU is effective for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year, with early adoption permitted. The Company is currently evaluating the impact of this ASU, but does not expect a material impact to the financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement . This ASU adjusts current required disclosures related to fair value measurements. This ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within that fiscal year, with early adoption permitted. The Company is currently evaluating the impact of this ASU, but does not expect a material impact to the financial statements. In August 2018, the SEC adopted the final rule under SEC Release No. 33-10532, Disclosure Update and Simplification , amending certain disclosure requirements that were redundant, duplicative, overlapping, outdated or superseded. In addition, the amendments expanded the disclosure requirements on the analysis of stockholders' equity for interim financial statements. Under the amendments, an analysis of changes in each caption of stockholders' equity presented in the balance sheet must be provided in a note or separate statement. The analysis should present a reconciliation of the beginning balance to the ending balance of each period for which a statement of comprehensive income is required to be filed. The final rule was published in the Federal Register on October 4, 2018, effective November 5, 2018. The additional disclosure is not required until the quarterly filing covering the period beginning after the effective date of the amendments, which will be the Company's first quarter fiscal year 2020 filing. The Company is evaluating the impact of this guidance on its financial statements.

Marketable Securities

Marketable Securities	6 Months Ended
	Sep. 29, 2018
Marketable Securities [Abstract]
Marketable Securities	Marketable Securities The Company’s investments that have original maturities greater than 90 days have been classified as available-for-sale securities in accordance with U.S. GAAP. Marketable securities are categorized on the consolidated condensed balance sheet as short- and long-term marketable securities, as appropriate. The following table is a summary of available-for-sale securities at September 29, 2018 (in thousands): As of September 29, 2018 Amortized Gross Gross Estimated Corporate debt securities $ 187,939 $ 3 $ (2,035 ) $ 185,907 Non-US government securities 13,698 — (155 ) 13,543 Agency discount notes 461 — (3 ) 458 Total securities $ 202,098 $ 3 $ (2,193 ) $ 199,908 The Company typically invests in highly-rated securities with original maturities generally ranging from one to three years. The Company's specifically identified gross unrealized loss of $2.2 million related to securities with total amortized cost of approximately $198.8 million at September 29, 2018 . Securities in a continuous unrealized loss position for more than 12 months as of September 29, 2018 had an aggregate amortized cost of $33.2 million and an aggregate unrealized loss of $0.4 million . The Company may sell certain of its marketable securities prior to their stated maturities for strategic reasons including, but not limited to, anticipated or actual changes in credit rating and duration management. When evaluating an investment for other-than-temporary impairment, the Company reviews factors including the length of time and extent to which fair value has been below cost basis, the financial condition of the issuer, changes in market interest rates and whether it is more likely than not the Company will be required to sell the investment before recovery of the investment’s cost basis. As of September 29, 2018 , the Company does not consider any of its investments to be other-than-temporarily impaired. The following table is a summary of available-for-sale securities at March 31, 2018 (in thousands): ໿ ໿ As of March 31, 2018 Amortized Gross Gross Estimated Corporate debt securities $ 185,636 $ 4 $ (2,318 ) $ 183,322 Non-US government securities 14,730 — (111 ) 14,619 Certificates of deposit 500 — — 500 Agency discount notes 459 — (4 ) 455 Total securities $ 201,325 $ 4 $ (2,433 ) $ 198,896 The Company’s specifically identified gross unrealized losses of $2.4 million related to securities with total amortized cost of approximately $198.2 million at March 31, 2018 . There were no securities that have been in a continuous loss position for more than 12 months as of March 31, 2018 . The Company may sell certain of its marketable securities prior to their stated maturities for strategic reasons including, but not limited to, anticipated or actual changes in credit rating and duration management. When evaluating an investment for other-than-temporary impairment, the Company reviews factors including the length of time and extent to which fair value has been below cost basis, the financial condition of the issuer, changes in market interest rates and whether it is more likely than not the Company will be required to sell the investment before recovery of the investment’s cost basis. As of March 31, 2018 , the Company did not consider any of its investments to be other-than-temporarily impaired. The cost and estimated fair value of available-for-sale securities by contractual maturities were as follows (in thousands): ໿ September 29, 2018 March 31, 2018 Amortized Estimated Amortized Estimated Cost Fair Value Cost Fair Value Within 1 year $ 49,023 $ 48,701 $ 26,560 $ 26,397 After 1 year 153,075 151,207 174,765 172,499 Total $ 202,098 $ 199,908 $ 201,325 $ 198,896

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Sep. 29, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company has determined that the only assets and liabilities in the Company’s financial statements that are required to be measured at fair value on a recurring basis are the Company’s cash equivalents, investment portfolio and pension plan assets / liabilities. The Company defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). • Level 1 - Quoted prices in active markets for identical assets or liabilities. • Level 2 - Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The Company’s cash equivalents and investment portfolio assets consist of debt securities, money market funds, non-U.S. government securities, securities of U.S. government-sponsored enterprises, and certificates of deposit and are reflected on our consolidated condensed balance sheets under the headings cash and cash equivalents, marketable securities, and long-term marketable securities. The Company determines the fair value of its investment portfolio assets by obtaining non-binding market prices from its third-party pricing providers on the last day of the quarter, whose sources may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. As of September 29, 2018 and March 31, 2018 , the Company classified all investment portfolio and pension plan assets and liabilities as Level 1 or Level 2 assets and liabilities. The Company has no Level 3 assets. There were no transfers between Level 1, Level 2, or Level 3 measurements for the three months ending September 29, 2018 . The following summarizes the fair value of our financial instruments at September 29, 2018 , exclusive of pension plan assets and liabilities (in thousands):  Quoted Prices Significant Significant Total Assets: Cash equivalents Money market funds $ 157,588 $ — $ — $ 157,588 Available-for-sale securities Corporate debt securities $ — $ 185,907 $ — $ 185,907 Non-US government securities — 13,543 — 13,543 Agency discount notes — 458 — 458  $ — $ 199,908 $ — $ 199,908 ໿ The following summarizes the fair value of our financial instruments at March 31, 2018 , exclusive of pension plan assets and liabilities (in thousands):  Quoted Prices Significant Significant Total Assets: Cash equivalents Money market funds $ 211,891 $ — $ — $ 211,891 Available-for-sale securities Corporate debt securities $ — $ 183,322 $ — $ 183,322 Non-US government securities — 14,619 — 14,619 Certificates of deposit — 500 — 500 Agency discount notes — 455 — 455 $ — $ 198,896 $ — $ 198,896 ໿

Accounts Receivable, net

Accounts Receivable, net	6 Months Ended
	Sep. 29, 2018
Accounts Receivable, Net [Abstract]
Accounts Receivable, net	Accounts Receivable, net The following are the components of accounts receivable, net (in thousands):  September 29, March 31,  2018 2018 Gross accounts receivable $ 206,992 $ 101,004 Allowance for doubtful accounts (203 ) (203 ) Accounts receivable, net $ 206,789 $ 100,801 The significant increase in accounts receivable is due primarily to the volume and timing of shipments in the current fiscal quarter.

Inventories

Inventories	6 Months Ended
	Sep. 29, 2018
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories are comprised of the following (in thousands):  September 29, March 31,  2018 2018 Work in process $ 87,342 $ 97,138 Finished goods 54,973 108,622  $ 142,315 $ 205,760

Revolving Credit Facility

Revolving Credit Facility	6 Months Ended
	Sep. 29, 2018
Line of Credit Facility [Abstract]
Revolving Credit Facility	Revolving Credit Facility On July 12, 2016, Cirrus Logic entered into an amended and restated credit agreement (the “ Credit Agreement”) with Wells Fargo Bank, National Association, as Administrative Agent, and the Lenders party thereto, for the purpose of refinancing an existing credit facility and providing ongoing working capital. The Credit Agreement provides for a $300 million senior secured revolving credit facility (the “Credit Facility”). The Credit Facility matures on July 12, 2021. The Credit Facility is required to be guaranteed by all of Cirrus Logic’s material domestic subsidiaries (the “Subsidiary Guarantors”). The Credit Facility is secured by substantially all of the assets of Cirrus Logic and any Subsidiary Guarantors, except for certain excluded assets. Borrowings under the Credit Facility may, at our election, bear interest at either (a) a base rate plus the applicable margin (“Base Rate Loans”) or (b) a LIBOR rate plus the applicable margin (“LIBOR Rate Loans”). The applicable margin ranges from 0% to 0.50% per annum for Base Rate Loans and 1.25% to 2.00% per annum for LIBOR Rate Loans based on the Leverage Ratio (as defined below). A commitment fee accrues at a rate per annum ranging from 0.20% to 0.30% (based on the Leverage Ratio) on the average daily unused portion of the commitment of the lenders. The Credit Agreement contains certain financial covenants providing that (a) the ratio of consolidated funded indebtedness to consolidated EBITDA for the prior four fiscal quarters must not be greater than 3.00 to 1.00 (the “Leverage Ratio”) and (b) the ratio of consolidated EBITDA for the prior four consecutive fiscal quarters to consolidated fixed charges (including amounts paid in cash for consolidated interest expenses, capital expenditures, scheduled principal payments of indebtedness, and income taxes) for the prior four consecutive fiscal quarters must not be less than 1.25 to 1.00 as of the end of each fiscal quarter. The Credit Agreement also contains negative covenants limiting the Company’s or any Subsidiary’s ability to, among other things, incur debt, grant liens, make investments, effect certain fundamental changes, make certain asset dispositions, and make certain restricted payments. As of September 29, 2018 , the Company had no amounts outstanding under the Credit Facility and was in compliance with all covenants under the Credit Agreement.

Revenues

Revenues	6 Months Ended
	Sep. 29, 2018
Revenue from Contract with Customer [Abstract]
Revenues	Revenues Disaggregation of revenue We disaggregate revenue from contracts with customers based on the ship to location of the customer. The geographic regions that are reviewed are the United States and countries outside of the United States (primarily located in Asia). Total net sales based on the disaggregation criteria described above are as follows: Three Months Ended Six Months Ended September 29, September 23, September 29, September 23, 2018 2017 2018 2017 Non-United States $ 359,367 $ 419,070 $ 605,443 $ 731,957 United States 6,938 6,467 15,345 14,315 $ 366,305 $ 425,537 $ 620,788 $ 746,272 Performance obligations The Company's single performance obligation is delivering the promised goods to the customer. Performance obligations are satisfied upon transfer of product control to the customer, as defined per the shipping terms within the customer's contract. As allowed by ASC 606, disclosure of the value of unsatisfied performance obligations for contracts with an original expected term length of one year or less is not required. The vast majority of the Company's contracts have an original expected term length of one year or less. As of September 29, 2018 , the Company had no unsatisfied performance obligations. The Company’s products primarily include a standard one -year warranty. Warranties qualify as assurance-type warranties, as goods can be returned for product non-conformance and defect only. As such, they are not considered a separate performance obligation. Contract balances The Company's standard terms do not include significant financing components or noncash consideration. There have been no material impairment losses on accounts receivable. There are no material contract assets or contract liabilities recorded on the consolidated condensed balance sheets. Transaction price Pricing is established and agreed upon by the customer prior to an order being placed. Variable pricing currently includes rebates, rights of returns, warranties, price protection and stock rotation. Rebates are granted as a customer account credit, based on agreed-upon sales thresholds. Rights of return and warranty costs are estimated using the "most likely amount" method by reviewing historical returns to determine the most likely customer return rate and applying materiality thresholds. Price protection includes price adjustments available to certain distributors based upon established book price and a stated adjustment period. Stock rotation is also available to certain distributors based on a stated maximum of prior billings.

Pension Plan

Pension Plan	6 Months Ended
	Sep. 29, 2018
Retirement Benefits [Abstract]
Pension Plan	Pension Plan As a result of our acquisition of Wolfson in fiscal year 2015, the Company has a defined benefit pension scheme (the “Scheme”), for some individuals in the United Kingdom. The participants in the Scheme no longer accrue benefits and therefore the Company will not be required to make contributions in respect of future accruals. During fiscal year 2018, the Company authorized the termination of the Scheme under which 60 participants had accrued benefits. On March 16, 2018, the Scheme completed a buy-in transaction whereby the assets of the Scheme, together with a final contribution from the Company of $11.0 million , were invested in a bulk purchase annuity contract that fully insured the benefits payable to the members of the Scheme at that time. As the buy-in transaction resulted in the defined benefit obligations being fully insured, the Company expects no further material contributions. The bulk purchase annuity contract is structured to enable the Scheme to move to full buy-out (following which the insurance company would become directly responsible for the pension payments) and the intention is to proceed on this basis. When the buy-out is complete, a settlement loss will be recognized within other non-operating expense and will include any unamortized loss recorded within Other Comprehensive Income, which is approximately $11.2 million at September 29, 2018 .

Income Taxes

Income Taxes	6 Months Ended
	Sep. 29, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes ໿ Our provision (benefit) for income taxes is based on estimated effective tax rates derived from an estimate of annual consolidated earnings before taxes, adjusted for nondeductible expenses, other permanent items and any applicable credits. The following table presents the provision (benefit) for income taxes (in thousands) and the effective tax rates:  Three Months Ended Six Months Ended  September 29, September 23, September 29, September 23,  2018 2017 2018 2017 Income before income taxes $ 56,725 $ 90,497 $ 52,225 $ 138,372 Provision (benefit) for income taxes $ (1,448 ) $ 17,197 $ (1,676 ) $ 22,160 Effective tax rate (2.6 )% 19.0 % (3.2 )% 16.0 % Our income tax benefit for the second quarter of fiscal year 2019 was $1.4 million compared to $17.2 million in income tax expense for the second quarter of fiscal year 2018 , resulting in effective tax rates of (2.6)% and 19.0% for the second quarter of fiscal year 2019 and 2018 , respectively. Our income tax benefit was $1.7 million for the first six months of fiscal year 2019 compared to $22.2 million of tax expense for the first six months of fiscal year 2018 , resulting in effective tax rates of (3.2)% and 16.0% , respectively. Our effective tax rates for the second quarter and first six months of fiscal year 2019 were lower than the federal statutory rate primarily due to adjustments recorded in the second quarter to reduce the provisional amount of the Tax Act's transition tax, the U.S. federal research and development tax credit, and the effect of income earned in certain foreign jurisdictions that is taxed below the federal statutory rate. Our effective tax rates for the second quarter and first six months of fiscal year 2018 were lower than the federal statutory rate primarily due to the effect of income earned in certain foreign jurisdictions taxed below the federal statutory rate, excess tax benefits from stock-based compensation, and the release of prior year unrecognized tax benefits that were determined to be effectively settled in the first quarter of fiscal year 2018. The Tax Act was enacted on December 22, 2017. The Tax Act reduced the U.S. federal corporate income tax rate from 35.0% to 21.0% , restricts the deductibility of certain business expenses, requires companies to pay a one-time transition tax on earnings of certain foreign subsidiar ies that were previously tax-deferred and creates new taxes on certain foreign sourced earnings, among other provisions. We are applying the guidance in SEC Staff Accounting Bulletin No. 118 when accounting for the enactment-date effects of the Tax Act. At September 29, 2018 , we had not completed our accounting for the income tax effects of the Tax Act. We have made a reasonable estimate of the income tax effects on our existing deferred tax balances and the one-time transition tax. During the second quarter of fiscal year 2019 and first six months of fiscal year 2019 , we recognized adjustments of $11.3 million that reduced the provisional amount of the one-time transition tax recorded at March 31, 2018. We are still analyzing certain aspects of the Tax Act and refining our calculations, which could potentially affect the measurement of deferred tax balances or give rise to new deferred tax amounts. In addition, we have not yet finalized the calculation of foreign earnings & profits and the amounts held in cash or other specified assets on the applicable measurement date, which could result in additional adjustments to the transition tax. We will continue to make and refine calculations as additional analysis is completed. Under a provision commonly known as global intangible low taxed income ("GILTI"), the Tax Act subjects a U.S. shareholder to current tax on certain earnings of foreign subsidiaries. Under U.S. GAAP, an accounting policy election can be made to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years, or to provide for the tax expense related to GILTI in the year the tax is incurred as a period expense only. Given the complexity of the GILTI provisions, we are still evaluating the effects of the GILTI provisions and have not yet made an accounting policy election. At September 29, 2018 , because we are still evaluating the GILTI provisions, we have included GILTI related to current-year operations only in our estimated annual effective tax rate and have not provided additional GILTI on deferred items. The Company records unrecognized tax benefits for the estimated risk associated with tax positions taken on tax returns. At September 29, 2018 , the Company had unrecognized tax benefits of $44.2 million , all of which would impact the effective tax rate if recognized. The Company recorded gross increases of $0.7 million and $0.9 million to its current year unrecognized tax benefits in the first and second quarters of fiscal year 2019 , respectively, and a gross decrease of $12.5 million to its prior year unrecognized tax benefits in the second quarter of fiscal year 2019 . The Company’s total unrecognized tax benefits are classified as “ Non-current income taxes" in the consolidated condensed balance sheets. The Company recognizes interest and penalties related to unrecognized tax benefits in the provision for income taxes. As of September 29, 2018 , the balance of accrued interest and penalties, net of tax, was $1.7 million . On July 24, 2018, the U.S. Court of Appeals for the Ninth Circuit reversed the decision of the U.S. Tax Court in Altera Corp. v. Commissioner related to the treatment of stock based compensation in an intercompany cost sharing arrangement. On August 7, 2018, the Ninth Circuit withdrew the opinion to allow time for a reconstituted panel to confer on this appeal. Until the reconstituted panel issues a decision, the Tax Court's decision in Altera controls. There is no impact to the financial statements at this time. Fiscal years 2015 through 2018 remain open to examination by the major taxing jurisdictions to which the Company is subject, although carry forward attributes that were generated in tax years prior to fiscal year 2015 may be adjusted upon examination by the tax authorities if they have been, or will be, used in a future period. The Company's United Kingdom subsidiaries are currently under a limited scope tax audit for certain income tax matters related to fiscal year 2016. The Company believes it has accrued adequate reserves related to the matters under examination. The Company is not under an income tax audit in any other major taxing jurisdiction.

Net Income Per Share

Net Income Per Share	6 Months Ended
	Sep. 29, 2018
Earnings Per Share [Abstract]
Net Income Per Share	Net Income Per Share Basic net income per share is based on the weighted effect of common shares issued and outstanding and is calculated by dividing net income by the basic weighted average shares outstanding during the period. Diluted net income per share is calculated by dividing net income by the weighted average number of common shares used in the basic net income per share calculation, plus the equivalent number of common shares that would be issued assuming exercise or conversion of all potentially dilutive common shares outstanding. These potentially dilutive items consist primarily of outstanding stock options and restricted stock units. The following table details the calculation of basic and diluted earnings per share for the three and six months ended September 29, 2018 and September 23, 2017 (in thousands, except per share amounts): ໿  Three Months Ended Six Months Ended  September 29, September 23, September 29, September 23,  2018 2017 2018 2017 Numerator: Net income $ 58,173 $ 73,300 $ 53,901 $ 116,212 Denominator: Weighted average shares outstanding 60,472 63,431 60,967 63,764 Effect of dilutive securities 1,959 2,929 1,843 2,997 Weighted average diluted shares 62,431 66,360 62,810 66,761 Basic earnings per share $ 0.96 $ 1.16 $ 0.88 $ 1.82 Diluted earnings per share $ 0.93 $ 1.10 $ 0.86 $ 1.74 The weighted outstanding shares excluded from our diluted calculation for the three and six months ended September 29, 2018 were 609 thousand and 1,277 thousand , respectively, as the shares were anti-dilutive. The weighted outstanding shares excluded from our diluted calculation for the three and six months ended September 23, 2017 were 236 thousand and 222 thousand , respectively, as the shares were anti-dilutive.

Legal Matters

Legal Matters	6 Months Ended
	Sep. 29, 2018
Loss Contingency, Information about Litigation Matters [Abstract]
Legal Matters	Legal Matters From time to time, we are involved in legal proceedings concerning matters arising in connection with the conduct of our business activities. We regularly evaluate the status of legal proceedings in which we are involved in order to assess whether a loss is probable or there is a reasonable possibility that a loss or additional loss may have been incurred, and to determine if accruals are appropriate. We further evaluate each legal proceeding to assess whether an estimate of possible loss or range of loss can be made. Based on current knowledge, management does not believe that there are any pending matters that could potentially have a material adverse effect on our business, financial condition, results of operations or cash flows. However, we are engaged in various legal actions in the normal course of business. There can be no assurances in light of the inherent uncertainties involved in any potential legal proceedings, some of which are beyond our control, and an adverse outcome in any legal proceeding could be material to our results of operations or cash flows for any particular reporting period.

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Sep. 29, 2018
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders’ Equity Common Stock The Company issued a net 0.1 million and 0.2 million shares of common stock during the three and six months ending September 29, 2018 , respectively, pursuant to the Company's equity incentive plans. The Company issued a net 0.2 million and 0.4 million shares during the three and six months ending September 23, 2017 , respectively, pursuant to the Company's equity incentive plans. Share Repurchase Program Since inception, $95.0 million of the Company’s common stock has been repurchased under the Company’s 2018 $200 million share repurchase program, leaving $105.0 million available for repurchase under this plan as of September 29, 2018 . During the three and six months ended September 29, 2018 , respectively, the Company repurchased 1.3 million shares of its common stock, for $55.0 million , at an average cost of $43.19 per share and 2.3 million shares of its common stock, for $95.0 million , at an average cost of $41.26 per share. All of these shares were repurchased in the open market and were funded from existing cash. All shares of our common stock that were repurchased were retired as of September 29, 2018 .

Segment Information

Segment Information	6 Months Ended
	Sep. 29, 2018
Segment Reporting [Abstract]
Segment Information	Segment Information We determine our operating segments in accordance with FASB guidelines. Our Chief Executive Officer (“CEO”) has been identified as the chief operating decision maker under these guidelines. The Company operates and tracks its results in one reportable segment, but reports revenue performance in two product lines, Portable Audio and Non-Portable Audio and Other. Our CEO receives and uses enterprise-wide financial information to assess financial performance and allocate resources, rather than detailed information at a product line level. Additionally, our product lines have similar characteristics and customers. They share support functions such as sales, public relations, supply chain management, various research and development and engineering support, in addition to the general and administrative functions of human resources, legal, finance and information technology. Therefore, there is no complete, discrete financial information maintained for these product lines. Revenues from our product lines are as follows (in thousands):  Three Months Ended Six Months Ended  September 29, September 23, September 29, September 23,  2018 2017 2018 2017 Portable Audio Products $ 324,049 $ 381,761 $ 536,309 $ 662,449 Non-Portable Audio and Other Products 42,256 43,776 84,479 83,823  $ 366,305 $ 425,537 $ 620,788 $ 746,272

Recently Issued Accounting Pr_2

Recently Issued Accounting Pronouncements (Policies)	6 Months Ended
	Sep. 29, 2018
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Pronouncements	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (ASC Topic 606) . The purpose of this ASU is to converge revenue recognition requirements per U.S. GAAP and International Financial Reporting Standards (“IFRS”). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date after public comment supported a proposal to delay the effective date of this ASU to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. The Company completed the process of reviewing our customers’ contracts in respect of performance obligation identification and satisfaction, pricing, warranties, and return rights, among other considerations, in the first quarter of fiscal year 2019. According to the standard, the Company could adopt by full retrospective method, which applies retrospectively to each prior period presented, or by modified retrospective method with the cumulative effect adjustment recognized in beginning retained earnings as of the date of adoption. The Company adopted this standard using the modified retrospective adoption method in the first quarter of fiscal year 2019 with no income statement impact, and therefore no beginning retained earnings impact. See Note 8 - Revenues for additional details. The effects of the changes made to our balance sheet at adoption were as follows (in thousands): Balance at March 31, 2018 Impact from ASU 2014-09 Adoption Balance at April 1, 2018 Financial statement line item: Accounts receivable $ 100,801 $ 5,539 $ 106,340 Inventories 205,760 (391 ) 205,369 Other current assets 13,877 391 14,268 Other accrued liabilities $ (12,657 ) $ (5,539 ) $ (18,196 ) In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The FASB issued this update to increase transparency and comparability by recognizing lease assets and lease liabilities on the balance sheet and disclosing key leasing arrangement details . Lessees would recognize operating leases on the balance sheet under this ASU — with the future lease payments recognized as a liability, measured at present value, and the right-of-use asset recognized for the lease term. A single lease cost would be recognized over the lease term. For initial terms of less than twelve months, a lessee would be permitted to make an accounting policy election to recognize lease expense for such leases generally on a straight-line basis over the lease term. This ASU is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The modified retrospective approach was previously the only allowed adoption method. In July 2018, the FASB issued the related ASU 2018-10 - Leases (Topic 842): Targeted Improvements . This ASU offers a new transition adoption method, which will not require adjustments to comparative periods. The Company currently intends to adopt using the latter method. We expect that most of our operating lease commitments will be subject to the new standard and recognized as right-of-use assets and operating lease liabilities upon adoption, which will materially increase the total assets and total liabilities that we report relative to such amounts prior to adoption of this ASU. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . This ASU requires credit losses on available-for-sale debt securities to be presented as an allowance rather than a write-down. Unlike current U.S. GAAP, the credit losses could be reversed with changes in estimates, and recognized in current year earnings. This ASU is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods. Early adoption is permitted for annual periods beginning after December 15, 2018, including interim periods. The Company is currently evaluating the impact of this ASU but does not expect a material impact to the financial statements upon adoption. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . This ASU eliminates step two of the goodwill impairment test. An impairment charge is to be recognized for the amount by which the current value exceeds the fair value. This ASU is effective for annual periods beginning after December 15, 2019, including interim periods. Early adoption is permitted, for interim or annual goodwill impairment tests performed after January 1, 2017, and should be applied prospectively. An entity is required to disclose the nature of and reason for the change in accounting principle upon transition. That disclosure should be provided in the first annual period and in the interim period within the first annual period when the entity initially adopts the amendments in this update. The Company is currently evaluating the impact of this ASU, but does not expect a material impact to the financial statements upon adoption. In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. This ASU requires an employer to disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on income statement presentation for service cost and other components of net benefit cost. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods. The Company adopted this ASU in the first quarter of fiscal year 2019. The expected impact of adoption is discussed in Note 9, to be recorded upon the buy-out settlement of the defined benefit pension plan. In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting . This ASU applies to any company that changes the terms or conditions of a share-based award, considered a modification. Modification accounting would be applied unless certain conditions were met related to the fair value of the award, the vesting conditions and the classification of the modified award. This ASU is effective for annual periods beginning after December 15, 2017, with early adoption permitted. The standard should be applied prospectively to an award modified on or after the adoption date. The Company adopted this ASU in the first quarter of fiscal year 2019 with no financial statement impact as no awards were modified in the current period. In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income . This ASU allows for the classification of stranded tax effects resulting from the Tax Cuts and Jobs Act (the “Tax Act”) from accumulated other comprehensive income to retained earnings. This ASU is effective for annual periods beginning after December 15, 2018, with early adoption permitted. The standard should be applied in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in tax rate is recognized. The Company is currently evaluating the impact of this ASU, but does not expect a material impact to the financial statements upon adoption. In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting . This ASU expands the scope of Topic 718 to include all share-based payment transactions for acquiring goods and services from nonemployees and will apply to all share-based payment transactions in which the grantor acquires goods and services to be used or consumed in its own operations by issuing share-based payment awards. This ASU is effective for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year, with early adoption permitted. The Company is currently evaluating the impact of this ASU, but does not expect a material impact to the financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement . This ASU adjusts current required disclosures related to fair value measurements. This ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within that fiscal year, with early adoption permitted. The Company is currently evaluating the impact of this ASU, but does not expect a material impact to the financial statements. In August 2018, the SEC adopted the final rule under SEC Release No. 33-10532, Disclosure Update and Simplification , amending certain disclosure requirements that were redundant, duplicative, overlapping, outdated or superseded. In addition, the amendments expanded the disclosure requirements on the analysis of stockholders' equity for interim financial statements. Under the amendments, an analysis of changes in each caption of stockholders' equity presented in the balance sheet must be provided in a note or separate statement. The analysis should present a reconciliation of the beginning balance to the ending balance of each period for which a statement of comprehensive income is required to be filed. The final rule was published in the Federal Register on October 4, 2018, effective November 5, 2018. The additional disclosure is not required until the quarterly filing covering the period beginning after the effective date of the amendments, which will be the Company's first quarter fiscal year 2020 filing. The Company is evaluating the impact of this guidance on its financial statements.
Revenues	Disaggregation of revenue We disaggregate revenue from contracts with customers based on the ship to location of the customer. The geographic regions that are reviewed are the United States and countries outside of the United States (primarily located in Asia). Performance obligations The Company's single performance obligation is delivering the promised goods to the customer. Performance obligations are satisfied upon transfer of product control to the customer, as defined per the shipping terms within the customer's contract. As allowed by ASC 606, disclosure of the value of unsatisfied performance obligations for contracts with an original expected term length of one year or less is not required. The vast majority of the Company's contracts have an original expected term length of one year or less. As of September 29, 2018 , the Company had no unsatisfied performance obligations. The Company’s products primarily include a standard one -year warranty. Warranties qualify as assurance-type warranties, as goods can be returned for product non-conformance and defect only. As such, they are not considered a separate performance obligation. Contract balances The Company's standard terms do not include significant financing components or noncash consideration. There have been no material impairment losses on accounts receivable. There are no material contract assets or contract liabilities recorded on the consolidated condensed balance sheets. Transaction price Pricing is established and agreed upon by the customer prior to an order being placed. Variable pricing currently includes rebates, rights of returns, warranties, price protection and stock rotation. Rebates are granted as a customer account credit, based on agreed-upon sales thresholds. Rights of return and warranty costs are estimated using the "most likely amount" method by reviewing historical returns to determine the most likely customer return rate and applying materiality thresholds. Price protection includes price adjustments available to certain distributors based upon established book price and a stated adjustment period. Stock rotation is also available to certain distributors based on a stated maximum of prior billings.
Segment Information	The Company operates and tracks its results in one reportable segment, but reports revenue performance in two product lines, Portable Audio and Non-Portable Audio and Other. Our CEO receives and uses enterprise-wide financial information to assess financial performance and allocate resources, rather than detailed information at a product line level. Additionally, our product lines have similar characteristics and customers. They share support functions such as sales, public relations, supply chain management, various research and development and engineering support, in addition to the general and administrative functions of human resources, legal, finance and information technology. Therefore, there is no complete, discrete financial information maintained for these product lines.

Recently Issued Accounting Pr_3

Recently Issued Accounting Pronouncements (Tables)	6 Months Ended
	Sep. 29, 2018
Accounting Changes and Error Corrections [Abstract]
Effects of the Changes Made to Balance Sheet at Adoption	The effects of the changes made to our balance sheet at adoption were as follows (in thousands): Balance at March 31, 2018 Impact from ASU 2014-09 Adoption Balance at April 1, 2018 Financial statement line item: Accounts receivable $ 100,801 $ 5,539 $ 106,340 Inventories 205,760 (391 ) 205,369 Other current assets 13,877 391 14,268 Other accrued liabilities $ (12,657 ) $ (5,539 ) $ (18,196 )

Marketable Securities (Tables)

Marketable Securities (Tables)	6 Months Ended
	Sep. 29, 2018
Marketable Securities [Abstract]
Schedule of Available-for-sale Securities	The following table is a summary of available-for-sale securities at March 31, 2018 (in thousands): ໿ ໿ As of March 31, 2018 Amortized Gross Gross Estimated Corporate debt securities $ 185,636 $ 4 $ (2,318 ) $ 183,322 Non-US government securities 14,730 — (111 ) 14,619 Certificates of deposit 500 — — 500 Agency discount notes 459 — (4 ) 455 Total securities $ 201,325 $ 4 $ (2,433 ) $ 198,896 The following table is a summary of available-for-sale securities at September 29, 2018 (in thousands): As of September 29, 2018 Amortized Gross Gross Estimated Corporate debt securities $ 187,939 $ 3 $ (2,035 ) $ 185,907 Non-US government securities 13,698 — (155 ) 13,543 Agency discount notes 461 — (3 ) 458 Total securities $ 202,098 $ 3 $ (2,193 ) $ 199,908
Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity	The cost and estimated fair value of available-for-sale securities by contractual maturities were as follows (in thousands): ໿ September 29, 2018 March 31, 2018 Amortized Estimated Amortized Estimated Cost Fair Value Cost Fair Value Within 1 year $ 49,023 $ 48,701 $ 26,560 $ 26,397 After 1 year 153,075 151,207 174,765 172,499 Total $ 202,098 $ 199,908 $ 201,325 $ 198,896

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Sep. 29, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Financial Assets and Liabilities	The following summarizes the fair value of our financial instruments at September 29, 2018 , exclusive of pension plan assets and liabilities (in thousands):  Quoted Prices Significant Significant Total Assets: Cash equivalents Money market funds $ 157,588 $ — $ — $ 157,588 Available-for-sale securities Corporate debt securities $ — $ 185,907 $ — $ 185,907 Non-US government securities — 13,543 — 13,543 Agency discount notes — 458 — 458  $ — $ 199,908 $ — $ 199,908 ໿ The following summarizes the fair value of our financial instruments at March 31, 2018 , exclusive of pension plan assets and liabilities (in thousands):  Quoted Prices Significant Significant Total Assets: Cash equivalents Money market funds $ 211,891 $ — $ — $ 211,891 Available-for-sale securities Corporate debt securities $ — $ 183,322 $ — $ 183,322 Non-US government securities — 14,619 — 14,619 Certificates of deposit — 500 — 500 Agency discount notes — 455 — 455 $ — $ 198,896 $ — $ 198,896

Accounts Receivable, net (Table

Accounts Receivable, net (Tables)	6 Months Ended
	Sep. 29, 2018
Accounts Receivable, Net [Abstract]
Components of Accounts Receivable, net	The following are the components of accounts receivable, net (in thousands):  September 29, March 31,  2018 2018 Gross accounts receivable $ 206,992 $ 101,004 Allowance for doubtful accounts (203 ) (203 ) Accounts receivable, net $ 206,789 $ 100,801

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Sep. 29, 2018
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories are comprised of the following (in thousands):  September 29, March 31,  2018 2018 Work in process $ 87,342 $ 97,138 Finished goods 54,973 108,622  $ 142,315 $ 205,760

Revenues (Tables)

Revenues (Tables)	6 Months Ended
	Sep. 29, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Total net sales based on the disaggregation criteria described above are as follows: Three Months Ended Six Months Ended September 29, September 23, September 29, September 23, 2018 2017 2018 2017 Non-United States $ 359,367 $ 419,070 $ 605,443 $ 731,957 United States 6,938 6,467 15,345 14,315 $ 366,305 $ 425,537 $ 620,788 $ 746,272

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Sep. 29, 2018
Income Tax Disclosure [Abstract]
Schedule of Provision for Income Taxes and Effective Tax Rates	The following table presents the provision (benefit) for income taxes (in thousands) and the effective tax rates:  Three Months Ended Six Months Ended  September 29, September 23, September 29, September 23,  2018 2017 2018 2017 Income before income taxes $ 56,725 $ 90,497 $ 52,225 $ 138,372 Provision (benefit) for income taxes $ (1,448 ) $ 17,197 $ (1,676 ) $ 22,160 Effective tax rate (2.6 )% 19.0 % (3.2 )% 16.0 %

Net Income Per Share (Tables)

Net Income Per Share (Tables)	6 Months Ended
	Sep. 29, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table details the calculation of basic and diluted earnings per share for the three and six months ended September 29, 2018 and September 23, 2017 (in thousands, except per share amounts): ໿  Three Months Ended Six Months Ended  September 29, September 23, September 29, September 23,  2018 2017 2018 2017 Numerator: Net income $ 58,173 $ 73,300 $ 53,901 $ 116,212 Denominator: Weighted average shares outstanding 60,472 63,431 60,967 63,764 Effect of dilutive securities 1,959 2,929 1,843 2,997 Weighted average diluted shares 62,431 66,360 62,810 66,761 Basic earnings per share $ 0.96 $ 1.16 $ 0.88 $ 1.82 Diluted earnings per share $ 0.93 $ 1.10 $ 0.86 $ 1.74

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Sep. 29, 2018
Segment Reporting [Abstract]
Schedule of Segment Revenue from Product Lines	Revenues from our product lines are as follows (in thousands):  Three Months Ended Six Months Ended  September 29, September 23, September 29, September 23,  2018 2017 2018 2017 Portable Audio Products $ 324,049 $ 381,761 $ 536,309 $ 662,449 Non-Portable Audio and Other Products 42,256 43,776 84,479 83,823  $ 366,305 $ 425,537 $ 620,788 $ 746,272

Recently Issued Accounting Pr_4

Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Apr. 01, 2018	Mar. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable	$ 206,789	$ 106,340	$ 100,801
Inventories	142,315	205,369	205,760
Other current assets	17,283	14,268	13,877
Other accrued liabilities	$ (17,370)	(18,196)	(12,657)
Calculated under Revenue Guidance in Effect before Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable			100,801
Inventories			205,760
Other current assets			13,877
Other accrued liabilities			$ (12,657)
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable		5,539
Inventories		(391)
Other current assets		391
Other accrued liabilities		$ (5,539)

Marketable Securities (Schedule

Marketable Securities (Schedule of Available-for-sale Securities) (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Mar. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 202,098	$ 201,325
Gross Unrealized Gains	3	4
Gross Unrealized Losses	(2,193)	(2,433)
Estimated Fair Value (Net Carrying Amount)	199,908	198,896
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	187,939	185,636
Gross Unrealized Gains	3	4
Gross Unrealized Losses	(2,035)	(2,318)
Estimated Fair Value (Net Carrying Amount)	185,907	183,322
Non-US government securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	13,698	14,730
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(155)	(111)
Estimated Fair Value (Net Carrying Amount)	13,543	14,619
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		500
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Estimated Fair Value (Net Carrying Amount)		500
Agency discount notes
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	461	459
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(3)	(4)
Estimated Fair Value (Net Carrying Amount)	$ 458	$ 455

Marketable Securities (Narrativ

Marketable Securities (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 29, 2018	Mar. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Gross unrealized losses	$ 2,193	$ 2,433
Amortized cost on available for sale securities held at gross unrealized loss	198,800	$ 198,200
Securities in a continuous unrealized loss position for more than 12 months, amortized cost	33,200
Securities in a continuous unrealized loss position for more than 12 months, aggregate unrealized loss	$ 400
Minimum
Debt Securities, Available-for-sale [Line Items]
Maturity period for highly-rated securities	1 year
Maximum
Debt Securities, Available-for-sale [Line Items]
Maturity period for highly-rated securities	3 years

Marketable Securities (Schedu_2

Marketable Securities (Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Mar. 31, 2018
Amortized Cost
Within 1 year	$ 49,023	$ 26,560
After 1 year	153,075	174,765
Amortized Cost	202,098	201,325
Estimated Fair Value
Within 1 year	48,701	26,397
After 1 year	151,207	172,499
Estimated Fair Value	$ 199,908	$ 198,896

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Schedule of Fair Value of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 199,908	$ 198,896
Quoted Prices in Active Markets for Identical Assets Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Significant Other Observable Inputs Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	199,908	198,896
Significant Unobservable Inputs Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	185,907	183,322
Corporate debt securities | Quoted Prices in Active Markets for Identical Assets Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Corporate debt securities | Significant Other Observable Inputs Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	185,907	183,322
Corporate debt securities | Significant Unobservable Inputs Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Non-US government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	13,543	14,619
Non-US government securities | Quoted Prices in Active Markets for Identical Assets Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Non-US government securities | Significant Other Observable Inputs Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	13,543	14,619
Non-US government securities | Significant Unobservable Inputs Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		500
Certificates of deposit | Quoted Prices in Active Markets for Identical Assets Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0
Certificates of deposit | Significant Other Observable Inputs Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		500
Certificates of deposit | Significant Unobservable Inputs Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0
Agency discount notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	458	455
Agency discount notes | Quoted Prices in Active Markets for Identical Assets Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Agency discount notes | Significant Other Observable Inputs Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	458	455
Agency discount notes | Significant Unobservable Inputs Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	157,588	211,891
Money market funds | Quoted Prices in Active Markets for Identical Assets Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	157,588	211,891
Money market funds | Significant Other Observable Inputs Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Money market funds | Significant Unobservable Inputs Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 0	$ 0

Accounts Receivable, net (Compo

Accounts Receivable, net (Components of Accounts Receivable, net) (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Apr. 01, 2018	Mar. 31, 2018
Accounts Receivable, Net [Abstract]
Gross accounts receivable	$ 206,992		$ 101,004
Allowance for doubtful accounts	(203)		(203)
Accounts receivable, net	$ 206,789	$ 106,340	$ 100,801

Inventories (Schedule of Invent

Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Apr. 01, 2018	Mar. 31, 2018
Inventory Disclosure [Abstract]
Work in process	$ 87,342		$ 97,138
Finished goods	54,973		108,622
Total inventories	$ 142,315	$ 205,369	$ 205,760

Revolving Credit Facility (Deta

Revolving Credit Facility (Details) - Credit Facility - USD ($)	6 Months Ended
	Sep. 29, 2018	Jul. 12, 2016
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity		$ 300,000,000
Covenant terms, leverage ratio requirement	300.00%
Covenant terms fixed charge ratio requirement	125.00%
Long-term line of credit, noncurrent	$ 0
Minimum
Line of Credit Facility [Line Items]
Line of credit facility, unused capacity, commitment fee percentage	0.20%
Maximum
Line of Credit Facility [Line Items]
Line of credit facility, unused capacity, commitment fee percentage	0.30%
Base Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.00%
Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
London Interbank Offered Rate (LIBOR) | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.25%
London Interbank Offered Rate (LIBOR) | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.00%

Revenues (Details)

Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 366,305	$ 425,537	$ 620,788	$ 746,272
Product warranty, term			1 year
Non-United States
Disaggregation of Revenue [Line Items]
Net sales	359,367	419,070	$ 605,443	731,957
United States
Disaggregation of Revenue [Line Items]
Net sales	$ 6,938	$ 6,467	$ 15,345	$ 14,315

Pension Plan (Details)

Pension Plan (Details) $ in Thousands	Mar. 16, 2018USD ($)	Mar. 31, 2018USD ($)participant	Sep. 29, 2018USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Number of pension plan participants authorized to terminate from Scheme | participant		60
Contributions paid	$ 11,000
Accumulated other comprehensive loss		$ 11,361	$ 13,158
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss			$ 11,200

Income Taxes (Provision for Inc

Income Taxes (Provision for Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Income Tax Disclosure [Abstract]
Income before income taxes	$ 56,725	$ 90,497	$ 52,225	$ 138,372
Provision (benefit) for income taxes	$ (1,448)	$ 17,197	$ (1,676)	$ 22,160
Effective tax rate	(2.60%)	19.00%	(3.20%)	16.00%

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Sep. 29, 2018	Jun. 30, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ (1,448)		$ 17,197	$ (1,676)	$ 22,160
Effective tax rate	(2.60%)		19.00%	(3.20%)	16.00%
Reduction of provision for one-time transition tax liability				$ (11,300)
Unrecognized tax benefits	$ 44,200			44,200
Unrecognized tax benefits, gross increase to current year unrecognized tax benefits	900	$ 700
Unrecognized tax benefits, gross decrease to prior year unrecognized tax benefits				12,500
Balance of accrued interest and penalties, net of tax	$ 1,700			$ 1,700

Net Income Per Share (Calculati

Net Income Per Share (Calculation of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Numerator:
Net income	$ 58,173	$ 73,300	$ 53,901	$ 116,212
Denominator:
Weighted average shares outstanding (in shares)	60,472	63,431	60,967	63,764
Effect of dilutive securities (in shares)	1,959	2,929	1,843	2,997
Weighted average diluted shares (in shares)	62,431	66,360	62,810	66,761
Basic earnings per share (in dollars per share)	$ 0.96	$ 1.16	$ 0.88	$ 1.82
Diluted earnings per share (in dollars per share)	$ 0.93	$ 1.10	$ 0.86	$ 1.74

Net Income Per Share (Narrative

Net Income Per Share (Narrative) (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Earnings Per Share [Abstract]
Weighted average shares outstanding excluded from diluted calculation (in shares)	609	236	1,277	222

Stockholders' Equity (Common St

Stockholders' Equity (Common Stock) (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Stockholders' Equity Note [Abstract]
Common stock issued as part of stock incentive plan (in shares)	0.1	0.2	0.2	0.4

Stockholders' Equity (Share Rep

Stockholders' Equity (Share Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Millions	3 Months Ended	6 Months Ended
	Sep. 29, 2018	Sep. 29, 2018	Jan. 31, 2018
Stockholders' Equity Note [Abstract]
Common stock repurchased	$ 55,000,000	$ 95,000,000
Common stock approved under the share repurchase program			$ 200,000,000
Common stock available for repurchase	$ 105,000,000	$ 105,000,000
Common stock repurchased (in shares)	1.3	2.3
Average cost per share repurchased (in dollars per share)	$ 43.19	$ 41.26

Segment Information (Narrative)

Segment Information (Narrative) (Details)	6 Months Ended
	Sep. 29, 2018segmentproduct_line
Segment Reporting [Abstract]
Number of reportable segments | segment	1
Number of product lines | product_line	2

Segment Information (Schedule o

Segment Information (Schedule of Segment Revenue from Product Lines) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018	Sep. 23, 2017
Segment Reporting Information [Line Items]
Net sales	$ 366,305	$ 425,537	$ 620,788	$ 746,272
Portable Audio Products
Segment Reporting Information [Line Items]
Net sales	324,049	381,761	536,309	662,449
Non-Portable Audio and Other Products
Segment Reporting Information [Line Items]
Net sales	$ 42,256	$ 43,776	$ 84,479	$ 83,823