Logitech International (LOGI) 10-Q 6 Feb 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2016	Jan. 09, 2017
Document and Entity Information
Entity Registrant Name	LOGITECH INTERNATIONAL SA
Entity Central Index Key	1,032,975
Document Type	10-Q
Document Period End Date	Dec. 31, 2016
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		161,721,924
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares
Income Statement [Abstract]
Net sales	$ 666,707	$ 621,079	$ 1,710,875	$ 1,587,259
Cost of goods sold	418,015	412,582	1,083,908	1,048,312
Amortization of intangible assets and purchase accounting effect on inventory	1,929	0	4,705	0
Gross profit	246,763	208,497	622,262	538,947
Operating expenses:
Marketing and selling	102,036	87,295	279,700	241,924
Research and development	32,284	29,161	96,867	85,889
General and administrative	24,631	24,080	75,587	77,966
Amortization of intangible assets and acquisition-related costs	1,494	112	4,535	447
Change in fair value of contingent consideration for business acquisition	(9,925)	0	(9,925)	0
Restructuring charges (credits), net	(33)	(666)	(44)	14,018
Total operating expenses	150,487	139,982	446,720	420,244
Operating income	96,276	68,515	175,542	118,703
Interest income, net	202	105	263	549
Other income (expense), net	2,634	862	943	(894)
Income before income taxes	99,112	69,482	176,748	118,358
Provision for income taxes	1,647	1,442	10,297	7,006
Net income from continuing operations	97,465	68,040	166,451	111,352
Loss from discontinued operations, net of taxes	0	(2,954)	0	(20,732)
Net income	$ 97,465	$ 65,086	$ 166,451	$ 90,620
Net income (loss) per share - basic:
Continuing operations (in dollars per share) | $ / shares	$ 0.60	$ 0.42	$ 1.03	$ 0.68
Discontinued operations (in dollars per share) | $ / shares	0	(0.02)	0	(0.13)
Net income per share - basic (in dollars per share) | $ / shares	0.60	0.40	1.03	0.55
Net income (loss) per share - diluted:
Continuing operations (in dollars per share) | $ / shares	0.59	0.41	1.01	0.67
Discontinued operations (in dollars per share) | $ / shares	0	(0.02)	0	(0.12)
Net income per share - diluted (in dollars per share) | $ / shares	$ 0.59	$ 0.39	$ 1.01	$ 0.55
Weighted average shares used to compute net income (loss) per share:
Basic (in shares) | shares	161,977	162,669	162,070	163,521
Diluted (in shares) | shares	165,901	165,168	165,211	165,951
Cash dividend per share (in dollars per share) | (per share)	$ 0	$ 0	$ 0.57	$ 0.53

CONDENSED CONSOLIDATED STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 97,465	$ 65,086	$ 166,451	$ 90,620
Other comprehensive income (loss):
Currency translation loss, net of taxes	(7,968)	(3,098)	(7,714)	(488)
Defined benefit pension plans:
Net gain and prior service costs, net of taxes	1,193	283	1,520	475
Amortization included in operating expenses	424	400	1,289	1,233
Hedging gain (loss):
Deferred hedging gain (loss), net of taxes	2,497	(62)	4,026	(1,236)
Reclassification of hedging loss (gain) included in cost of goods sold	(463)	45	432	(2,443)
Other comprehensive loss:	(4,317)	(2,432)	(447)	(2,459)
Total comprehensive income	$ 93,148	$ 62,654	$ 166,004	$ 88,161

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Current assets:
Cash and cash equivalents	$ 513,578	$ 519,195
Accounts receivable, net	277,677	142,778
Inventories	250,286	228,786
Other current assets	43,339	35,488
Total current assets	1,084,880	926,247
Non-current assets:
Property, plant and equipment, net	84,194	92,860
Goodwill	249,721	218,224
Other intangible assets, net	50,313	0
Other assets	85,728	86,816
Total assets	1,554,836	1,324,147
Current liabilities:
Accounts payable	358,196	241,166
Accrued and other current liabilities	247,963	173,764
Total current liabilities	606,159	414,930
Non-current liabilities:
Income taxes payable	55,573	59,734
Other non-current liabilities	91,709	89,535
Total liabilities	753,441	564,199
Commitments and contingencies
Shareholders’ equity:
Registered shares, CHF 0.25 par value: Issued and authorized shares - 173,106 at December 31 and March 31, 2016 Conditionally authorized shares - 50,000 at December 31 and March 31, 2016	30,148	30,148
Additional paid-in capital	16,336	6,616
Less shares in treasury, at cost — 11,298 at December 31, 2016 and 10,697 at March 31, 2016	(167,342)	(128,407)
Retained earnings	1,034,685	963,576
Accumulated other comprehensive loss	(112,432)	(111,985)
Total shareholders’ equity	801,395	759,948
Total liabilities and shareholders’ equity	$ 1,554,836	$ 1,324,147

CONDENSED CONSOLIDATED BALANCE5

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - SFr / shares shares in Thousands	Dec. 31, 2016	Mar. 31, 2016
Statement of Financial Position [Abstract]
Shares, par value (in CHF per share)	SFr 0.25	SFr 0.25
Shares, issued	173,106	173,106
Shares, authorized	173,106	173,106
Shares, conditionally authorized	50,000	50,000
Treasury, at cost, shares	11,298	10,697

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net income	$ 166,451	$ 90,620
Non-cash items included in net income:
Depreciation	32,479	36,884
Amortization of intangible assets	6,618	1,536
Loss (gain) on equity-method investment	(547)	176
Share-based compensation expense	26,354	19,875
Excess tax benefits from share-based compensation	(6,357)	(2,089)
Deferred income taxes	(473)	2,914
Change in fair value of contingent consideration for business acquisition	(9,925)	0
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(139,414)	(115,814)
Inventories	(15,194)	18,066
Other assets	(6,346)	(9,329)
Accounts payable	109,095	68,763
Accrued and other liabilities	71,549	39,244
Net cash provided by operating activities	234,290	150,846
Cash flows from investing activities:
Purchases of property, plant and equipment	(23,372)	(50,443)
Investment in privately held companies	(640)	(2,099)
Acquisitions, net of cash acquired	(66,987)	0
Release of restricted cash	715	0
Purchases of trading investments	(5,868)	(4,395)
Proceeds from sales of trading investments	5,912	4,668
Net cash used in investing activities	(90,240)	(52,269)
Cash flows from financing activities:
Payment of cash dividends	(93,093)	(85,915)
Purchases of treasury shares	(63,764)	(48,802)
Proceeds from sales of shares upon exercise of options and purchase rights	20,355	12,562
Tax withholdings related to net share settlements of restricted stock units	(13,054)	(5,357)
Excess tax benefits from share-based compensation	6,357	2,089
Net cash used in financing activities	(143,199)	(125,423)
Effect of exchange rate changes on cash and cash equivalents	(6,468)	(1,205)
Net decrease in cash and cash equivalents	(5,617)	(28,051)
Cash and cash equivalents, beginning of the period	519,195	537,038
Cash and cash equivalents, end of the period	513,578	508,987
Non-cash investing activities:
Property, plant and equipment purchased during the period and included in period end liability accounts	4,044	3,417
The following amounts reflected in the statements of cash flows are included in discontinued operations:
Depreciation	0	2,207
Amortization of other intangible assets	0	1,089
Share-based compensation expense	0	584
Purchases of property, plant and equipment	0	1,431
Cash and cash equivalents, beginning of the period	0	3,659
Cash and cash equivalents, end of the period	$ 0	$ 3,905

CONDENSED CONSOLIDATED STATEME7

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Registered Shares	Additional Paid-in Capital	Treasury Shares	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning of the period (in shares) at Mar. 31, 2015		173,106		8,625
Beginning of the period at Mar. 31, 2015	$ 758,134	$ 30,148	$ 0	$ (88,951)	$ 930,174	$ (113,237)
Increase (Decrease) in Shareholders' Equity
Total comprehensive income	88,161				90,620	(2,459)
Tax effects from share-based awards	(1,749)		(1,749)
Sales of shares upon exercise of options and purchase rights	12,562		(2,327)	$ 14,889
Sales of shares upon exercise of options and purchase rights (in shares)				(1,147)
Issuance of shares upon vesting of restricted stock units	(5,357)		(13,484)	$ 8,127	0
Issuance of shares upon vesting of restricted stock units (in shares)				(802)
Share-based compensation expense	$ 19,912		19,912
Purchase of treasury shares (in shares)	3,500			3,502
Purchase of treasury shares	$ (48,802)			$ (48,802)
Cash dividends	(85,915)				(85,915)
End of the period at Dec. 31, 2015	736,946	$ 30,148	2,352	$ (114,737)	934,879	(115,696)
End of the period (in shares) at Dec. 31, 2015		173,106		10,178
Beginning of the period (in shares) at Mar. 31, 2016		173,106		10,697
Beginning of the period at Mar. 31, 2016	759,948	$ 30,148	6,616	$ (128,407)	963,576	(111,985)
Increase (Decrease) in Shareholders' Equity
Total comprehensive income	166,004				166,451	(447)
Tax effects from share-based awards	(1,463)		(1,463)
Sales of shares upon exercise of options and purchase rights	20,355		6,435	$ 13,920
Sales of shares upon exercise of options and purchase rights (in shares)				(1,524)
Issuance of shares upon vesting of restricted stock units	(13,054)		(21,714)	$ 10,909	(2,249)
Issuance of shares upon vesting of restricted stock units (in shares)				(1,196)
Share-based compensation expense	$ 26,462		26,462
Purchase of treasury shares (in shares)	3,300			3,321
Purchase of treasury shares	$ (63,764)			$ (63,764)
Cash dividends	(93,093)				(93,093)
End of the period at Dec. 31, 2016	$ 801,395	$ 30,148	$ 16,336	$ (167,342)	$ 1,034,685	$ (112,432)
End of the period (in shares) at Dec. 31, 2016		173,106		11,298

The Company and Summary of Sign

The Company and Summary of Significant Accounting Policies and Estimates	9 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
The Company and Summary of Significant Accounting Policies and Estimates	The Company and Summary of Significant Accounting Policies and Estimates The Company Logitech International S.A, together with its consolidated subsidiaries, ("Logitech" or the "Company") designs, manufactures and markets products that allow people to connect through music, gaming, video, computing, and other digital platforms. The Company sells its products to a broad network of domestic and international customers, including direct sales to retailers and indirect sales through distributors. Logitech was founded in Switzerland in 1981 and Logitech International S.A. has been the parent holding company of Logitech since 1988. Logitech International S.A. is a Swiss holding company with its registered office in Apples, Switzerland, which conducts its business through subsidiaries in the Americas, Europe, Middle East and Africa ("EMEA"), and Asia Pacific. Shares of Logitech International S.A. are listed on both the SIX Swiss Exchange under the trading symbol LOGN and the Nasdaq Global Select Market under the trading symbol LOGI. Basis of Presentation The condensed consolidated interim financial statements include the accounts of Logitech and its subsidiaries. All intercompany balances and transactions have been eliminated. The condensed consolidated financial statements are presented in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and therefore do not include all the information required by GAAP for complete financial statements. They should be read in conjunction with the Company’s audited consolidated financial statements for the fiscal year ended March 31, 2016, included in its Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on May 23, 2016. In the opinion of management, these condensed consolidated financial statements include all adjustments, consisting of only normal and recurring adjustments, necessary and in all material aspects, for a fair statement of the results of operations, comprehensive income, financial position, cash flows and changes in shareholders' equity for the periods presented. Operating results for the three and nine months ended December 31, 2016 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2017, or any future periods. Reclassification Certain amounts from the comparative period in the accompanying unaudited condensed consolidated financial statements have been reclassified to conform to the condensed consolidated financial statement presentation as of and for the three and nine months ended December 31, 2016 . Changes in Significant Accounting Policies There have been no substantial changes in the Company’s significant accounting policies during the nine months ended December 31, 2016 compared with the significant accounting policies described in its Annual Report on Form 10-K for the fiscal year ended March 31, 2016 . Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Examples of significant estimates and assumptions made by management involve the fair value of goodwill, intangible assets acquired from business acquisitions, warranty liabilities, accruals for discretionary customer programs, sales return reserves, allowance for doubtful accounts, inventory valuation, restructuring charges, contingent consideration from business acquisitions and periodical reassessment of its fair value, share-based compensation expense, uncertain tax positions, and valuation allowances for deferred tax assets. Although these estimates are based on management’s best knowledge of current events and actions that may impact the Company in the future, actual results could differ materially from those estimates. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, "Revenue from Contracts with Customers (Topic 606)" ("ASU 2014-09"). ASU 2014-09 outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. Under the new model, recognition of revenue occurs when a customer obtains control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the new standard requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. ASU 2014-09 was originally to be effective for the Company on April 1, 2017. In July 2015, the FASB affirmed a one-year deferral of the effective date of the new revenue standard. The new standard will become effective for the Company on April 1, 2018. Early application is permitted but not before the original effective date of annual periods beginning after December 15, 2016. The new standard is required to be applied retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying it recognized at the date of initial application. Subsequently, the FASB has issued the following standards related to ASU 2014-09: ASU No. 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations" (“ASU 2016-08”); ASU No. 2016-10, "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing" (“ASU 2016-10”); and ASU No. 2016-12, "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients" (“ASU 2016-12”). The Company must adopt ASU 2016-08, ASU 2016-10 and ASU 2016-12 with ASU 2014-09 (collectively, the “new revenue standards”). The Company has not yet selected a transition method and is in process of assessing all potential impacts of the new standard. The new revenue standard will be adopted effective April 1, 2018. In July 2015, the FASB issued ASU No. 2015-11, "Simplifying the Measurement of Inventory (Topic 330)" ("ASU 2015-11"). Topic 330, Inventory, currently requires an entity to measure inventory at the lower of cost or market, with market value represented by replacement cost, net realizable value or net realizable value less a normal profit margin. The amendments in ASU 2015-11 require an entity to measure inventory at the lower of cost or net realizable value. ASU 2015-11 is effective in the first quarter of fiscal year 2018 for the Company, with early adoption permitted. The Company does not expect to early adopt this guidance and does not expect the adoption of this guidance to have a material impact on its condensed consolidated financial statements. In January 2016, the FASB issued ASU 2016-01 “ Financial Instruments- Recognition and Measurement of Financial Assets and Financial Liabilities (Subtopic 825-10) ”. The guidance is effective in the first quarter of fiscal year 2018 for the Company, with early adoption permitted. The Company does not expect to early adopt this guidance and does not believe that the adoption of this guidance will have a material impact on its condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02 " Leases (Topic 842) " ("ASU 2016-02"), which requires the recognition of lease assets and lease liabilities arising from operating leases in the statement of financial position. This guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is evaluating the full effect that ASU 2016-02 will have on its condensed consolidated financial statements and will adopt the standard effective April 1, 2019. In March 2016, the FASB issued ASU 2016-09 "Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting" ("ASU 2016-09"). The amendment simplifies several aspects of the accounting for share-based payments, including immediate recognition of all excess tax benefits and deficiencies in the income statement, changing the threshold to qualify for equity classification up to the employees' maximum statutory tax rates, allowing an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures as they occur, and clarifying the classification on the statement of cash flows for the excess tax benefit and employee taxes paid when an employer withholds shares for tax-withholding purposes. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted in any interim or annual period. The Company will adopt this standard effective April 1, 2017 and is in the process of evaluating the effect that ASU 2016-09 will have on its condensed consolidated financial statements. In August 2016, the FASB issued ASU 2016-15 "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" ("ASU 2016-15"), which gives guidance and reduces diversity in practice with respect to certain types of cash flows. The Company has early adopted this guidance during the second quarter of fiscal year 2017 and the adoption did not impact its condensed consolidated financial statements. In October 2016, the FASB issued ASU 2016-16 "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory" ("ASU 2016-16"), which eliminates the deferral of income tax effects of intra-entity asset transfers until the transferred asset is sold to an unrelated party or recovered through use. ASU 2016-16, however, does not apply to intra-entity transfer of inventory. The guidance is effective for annual periods beginning after December 15, 2017 and interim reporting periods within those annual periods. Early adoption is permitted but only in the first interim period of a fiscal year. The cumulative effect of change on equity upon adoption is to be quantified under the modified retrospective approach and recorded as of the beginning of the period of adoption. The Company is evaluating the full effect that ASU 2016-16 will have on its condensed consolidated financial statements and will adopt the standard effective April 1, 2018. In December 2016, the FASB issued ASU 2016-18 "Statement of Cash Flows (Topic 230): Restricted Cash" ("ASU 2016-18"), which requires that a statement of cash flows explains the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The standard is effective for annual periods beginning after December 15, 2017 and interim reporting periods within those annual periods, with early adoption permitted. The adoption of this standard should be applied using a retrospective transition method to each period presented. The Company does not expect the adoption of ASU 2016-18 will have a material impact on its condensed consolidated financial statements and is evaluating the timing of adoption of this standard. In January 2017, the FASB issued ASU 2017-04, "Simplifying the Test for Goodwill Impairment (Topic 330)"("ASU 2017-04"), which removes Step 2 from the goodwill impairment test. The standard will be effective for the Company for annual or any interim goodwill impairments in fiscal year beginning December 15, 2019, with early adoption permitted. The Company does not expect the adoption of ASU 2017-14 will have an impact on its condensed consolidated financial statements and is evaluating the timing of adoption of this standard.

Discontinued Operations

Discontinued Operations	9 Months Ended
	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued operations During the third quarter of fiscal year 2016, the Company's Board of Directors approved a plan to divest the Lifesize video conferencing business. Subsequently, on December 28, 2015 in the fourth quarter of fiscal year 2016, the Company and Lifesize, Inc.(“Lifesize”), a wholly owned subsidiary of the Company which held the assets of the Company’s video conferencing reportable segment, entered into a stock purchase agreement (the “Stock Purchase Agreement”) with entities affiliated with three venture capital firms - Redpoint Ventures, Sutter Hill Ventures and Meritech Capital Partners (the "Venture Investors"). Pursuant to the terms of the Stock Purchase Agreement, the Company sold 2.5 million shares of Series B Preferred Stock of Lifesize to the Venture Investors for cash proceeds of $2.5 million and retained 12 million non-voting shares of Series A Preferred Stock of Lifesize. The shares of Series A Preferred Stock of Lifesize retained by the Company represent 37.5% of the total shares outstanding immediately after the closing of the transactions (the "Closing"). Lifesize also issued 17.5 million shares of Series B Preferred Stock to the Venture Investors for cash proceeds of $17.5 million . The shares of Series B Preferred Stock held by the Venture Investors represent 62.5% of the total shares outstanding immediately after the Closing. In addition, Lifesize reserved 8 million shares of common stock for issuance pursuant to a stock plan to be adopted by Lifesize following the Closing, none of which are issued or outstanding at the Closing. The divestiture of the Lifesize video conferencing business was effective on December 28, 2015. The Stock Purchase Agreement contains representations, warranties and covenants of the parties and includes certain indemnification obligations of the Company to the Venture Investors. See “Note 12 - Commitments and Contingencies” to the condensed consolidated financial statements for more information. The Stock Purchase Agreement also contains certain post-closing working capital adjustments. The Company substantially completed its transition services for Lifesize during the third quarter of fiscal year 2017. The Company has classified the results of its Lifesize video conferencing business as discontinued operations in its condensed consolidated statements of operations for all periods presented since the disposition of the Lifesize video conferencing business represents a strategic shift that has a major effect on the Company's operations and financial results. The retained Series A Preferred Stock gives the Company no voting rights or any other significant influence over the disposed Lifesize video conferencing business, and therefore is accounted for as a cost method investment which is initially recognized at fair value of $5.6 million at the date of disposition of the Lifesize video conferencing business. Discontinued operations include results of the Lifesize video conferencing business. Discontinued operations also include other costs incurred by Logitech to effect the divestiture of the Lifesize video conferencing business. These costs include transaction charges, advisory and consulting fees and restructuring cost related to the Lifesize video conferencing business. The following table presents financial results of the video conferencing segment classified as total discontinued operations for the three and nine months ended December 31, 2015 (in thousands): Three Months Ended Nine Months Ended 2015 2015 Net sales $ 21,553 $ 65,554 Cost of goods sold 8,240 24,951 Gross profit 13,313 40,603 Operating expenses: Marketing and selling 8,877 31,550 Research and development 4,924 16,592 General and administrative 1,836 5,308 Restructuring charges, net 1,064 8,070 Total operating expenses 16,701 61,520 Operating loss from discontinued operations (3,388 ) (20,917 ) Interest and other expense, net (47 ) (180 ) Loss from discontinued operations before income taxes (3,435 ) (21,097 ) Benefit from income taxes (481 ) (365 ) Net loss from discontinued operations $ (2,954 ) $ (20,732 )

Business Acquisitions

Business Acquisitions	9 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Business Acquisitions	Business Acquisitions Jaybird Acquisition On April 20, 2016 (the "Acquisition Date"), the Company acquired all of the equity interest of JayBird, LLC (“Jaybird”), a Utah limited liability company that develops Bluetooth earbuds, activity trackers, and accessories for sports and active lifestyles, for a purchase price of $54.2 million in cash, including a working capital adjustment and payment of a line-of-credit on behalf of Jaybird, with an additional earn-out of up to $45.0 million based on the achievement of certain net revenue growth targets over approximately a two year period (the "Jaybird Acquisition"). If the net revenue growth targets are met, the Company will pay a maximum of $25.0 million and $20.0 million in fiscal years 2018 and 2019, respectively. The Jaybird Acquisition is expected to accelerate the Company's entry into the wireless wearables space. The Jaybird transaction meets the definition of a business and is accounted for using the acquisition method. The fair value of consideration transferred for the Jaybird Acquisition consists of the following (in thousands): Purchase price $ 54,242 Fair value of contingent consideration (earn-out) 18,000 Fair value of total consideration transferred $ 72,242 The fair value of the earn-out payments at the Acquisition Date was determined by providing risk-adjusted earnings projections using a Monte Carlo Simulation, which includes inputs that are not observable in the market, and therefore representing a Level 3 measurement. The fair value of this earn-out is discussed further in "Note 8 - Fair Value Measurements" to the condensed consolidated financial statements. The following table summarizes the preliminary allocation of the total consideration transferred to the estimated fair values of the assets acquired and liabilities assumed at the Acquisition Date (in thousands): Estimated Fair Value Cash and cash equivalents $ 255 Accounts receivable 272 Inventories 10,214 Other current assets 611 Property, plant, and equipment 1,165 Intangible assets 50,280 Other assets 27 Total identifiable assets acquired 62,824 Accounts payable (10,513 ) Accrued liabilities (1,227 ) Other current liabilities (5,226 ) Other long-term liabilities (283 ) Net identifiable assets acquired $ 45,575 Goodwill 26,667 Net assets acquired $ 72,242 Goodwill is primarily attributable to opportunities and economies of scale from combining the operations and technologies of Logitech and Jaybird. Goodwill is expected to be deductible for tax purposes. Inventory is estimated at net realizable value, which uses the estimated selling prices, less the cost of disposal and a reasonable profit allowance for the selling efforts. Upon sales of the inventory, the difference between the fair value of the inventories and the amount recognized by the acquiree immediately before the acquisition date, which is $0.7 million , is recognized in "amortization of intangibles assets and purchase accounting effect on inventory" in the condensed consolidated statements of operations. The Company included Jaybird's estimated fair value of assets acquired and liabilities assumed in its condensed consolidated balance sheets beginning April 20, 2016. The results of operations for Jaybird have been included in the Company's condensed consolidated statements of operations from the Acquisition Date. The following table sets forth the components of identifiable intangible assets acquired at their estimated fair values and their estimated useful lives as of the Acquisition Date (Dollars in thousands): Preliminary Fair Value Estimated Useful Life (years) Developed technology $ 18,450 4 In-process research & development ("IPR&D") 2,550 Not Applicable Customer relationships 19,900 8 Trade name 9,380 6 Total intangible assets acquired $ 50,280 Except for IPR&D, intangible assets acquired as a result of the Jaybird Acquisition are being amortized over their estimated useful lives using the straight-line method of amortization. Amortization of acquired developed technology of $1.2 million and $ 3.2 million, respectively, during the three and nine months ended December 31, 2016 is included in "Amortization of intangible assets and purchase accounting effect of inventory" in the gross profit of the condensed consolidated statements of operations. Amortization of the intangible assets of customer relationship and trade name of $1.0 million and $ 2.8 million, respectively, during the three and nine months ended December 31, 2016 is included in " amortization of intangible assets and acquisition-related costs " in the operating expense of the condensed consolidated statements of operations. Developed technology relates to existing bluetooth wireless sports earbuds. The economic useful life was determined based on the technology cycle related to developed technology of existing products, as well as the cash flows anticipated over the forecasted periods. Customer relationships represent the fair value of future projected revenue that will be derived from sales of products to existing customers of Jaybird. The economic useful life was determined based on historical customer turnover rates and the industry benchmarks. Trade name relates to the “Jaybird” trade name. The economic useful life was determined based on the expected life of the trade name and the cash flows anticipated over the forecasted periods. The value of developed technology and trade names was estimated using the relief-from-royalty method, an income approach (Level 3), which estimates the cost savings that accrue to the owner of the intangible assets that would otherwise be payable as royalties or license fees on revenues earned through the use of the asset. A royalty rate is applied to the projected revenues associated with the intangible assets to determine the amount of savings, which is then discounted to determine the fair value. The developed technology and trade names were valued using royalty rates of 10% and 2.5% , respectively, and both were discounted at a rate of 16% . The value of customer relationships was estimated using the excess earnings method, an income approach (Level 3), which converts projected revenues and costs into cash flows. To reflect the fact that certain other assets contribute to the cash flows generated, the returns for these contributory assets were removed to arrive at estimated cash flows solely attributable to the customer relationships, which was discounted at a rate of 16% . The IPR&D is accounted for as an indefinite-lived intangible asset and is not amortized until completion or abandonment of the associated research and development efforts. If the research and development efforts are completed, the IPR&D intangible asset will be amortized over the estimated useful life to be determined as of the date the efforts are completed. IPR&D is tested for impairment annually or periodically if an indicator of impairment exists during the period until completion. The IPR&D related to the X3 earbuds was released during the third quarter of fiscal year 2017 and will be amortized over its estimated useful life of five years . The Company believes the preliminary value of purchased intangible assets recorded above represent the fair values of, and approximate the amounts a market participant would pay for, these intangible assets as of the Acquisition Date. Saitek Acquisition On September 15, 2016, the Company completed the acquisition of the Saitek product line for a total cash consideration of approximately $13.0 million (the "Saitek Acquisition"). Out of the total consideration, $6.7 million was attributed to intangible assets, $4.9 million was attributed to goodwill, and $1.4 million was attributed to net tangible assets acquired. The Saitek Acquisition is expected to enhance the breadth and depth of the Company's product offerings and expand the Company's engineering capabilities in simulation products. The amount of goodwill generated from the Saitek Acquisition is deductible for tax purposes and is not material. The Company incurred acquisition-related costs for both the Jaybird Acquisition and the Saitek Acquisition of approximately $0.2 million and $1.5 million , in aggregate, for the three and nine months ended December 31, 2016, respectively. The acquisition-related costs are included in " amortization of intangible assets and acquisition-related costs " in the operating expense of the condensed consolidated statements of operations. For the three and nine months ended December 31, 2016 , Jaybird and Saitek contributed a total of $17.4 million and $47.3 million of net sales, respectively. Pro forma results of operations for both the Jaybird Acquisition and the Saitek Acquisition have not been presented because they are not material to the condensed consolidated statements of operations individually or in aggregate. The fair value of identifiable intangible assets acquired was based on estimates and assumptions made by management at the time of the acquisitions. As additional information becomes available, such as finalization of the estimated fair value of the assets acquired and liabilities assumed and the fair value of contingent consideration, the Company may revise its preliminary purchase price allocations during the remainder of the measurement periods (which will not exceed 12 months from the acquisition dates). Any such revisions or changes may be material as we finalize the fair values of the tangible and intangible assets acquired and liabilities assumed.

Net Income Per Share

Net Income Per Share	9 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Net Income Per Share	Net Income Per Share The computations of basic and diluted net income per share for the Company were as follows (in thousands, except per share amounts): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Net Income (loss): Continuing operations $ 97,465 $ 68,040 $ 166,451 $ 111,352 Discontinued operations — (2,954 ) — (20,732 ) Net income $ 97,465 $ 65,086 $ 166,451 $ 90,620 Shares used in net income (loss) per share computation: Weighted average shares outstanding - basic 161,977 162,669 162,070 163,521 Effect of potentially dilutive equivalent shares 3,924 2,499 3,141 2,430 Weighted average shares outstanding - diluted 165,901 165,168 165,211 165,951 Net income (loss) per share - basic: Continuing operations $ 0.60 $ 0.42 $ 1.03 $ 0.68 Discontinued operations — (0.02 ) — (0.13 ) Net income per share - basic $ 0.60 $ 0.40 $ 1.03 $ 0.55 Net income (loss) per share - diluted: Continuing operations $ 0.59 $ 0.41 $ 1.01 $ 0.67 Discontinued operations — (0.02 ) — (0.12 ) Net income per share - diluted $ 0.59 $ 0.39 $ 1.01 $ 0.55 Share equivalents attributable to outstanding stock options and restricted stock units ("RSUs") of 1.7 million and 6.3 million for the three months ended December 31, 2016 and 2015 , respectively, and 2.8 million and 6.6 million for the nine months ended December 31, 2016 and 2015 , respectively, were anti-dilutive and excluded from the calculation of diluted net income per share.

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employee Benefit Plans	Employee Benefit Plans Employee Share Purchase Plans and Stock Incentive Plans As of December 31, 2016 , the Company offers the 2006 ESPP (2006 Employee Share Purchase Plan (Non-U.S.)), the 1996 ESPP (1996 Employee Share Purchase Plan (U.S.)), the 2006 Plan (2006 Stock Incentive Plan) and the 2012 Plan (2012 Stock Inducement Equity Plan). The following table summarizes the share-based compensation expense and related tax benefit recognized for the three and nine months ended December 31, 2016 and 2015 , excluding balances classified as discontinued operations (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Cost of goods sold $ 617 $ 464 $ 1,930 $ 1,648 Marketing and selling 4,006 2,484 10,687 6,545 Research and development 1,176 846 3,007 2,174 General and administrative 3,588 2,668 10,730 8,917 Restructuring — — — 7 Total share-based compensation expense 9,387 6,462 26,354 19,291 Income tax benefit (2,391 ) (1,446 ) (6,092 ) (2,479 ) Total share-based compensation expense, net of income tax $ 6,996 $ 5,016 $ 20,262 $ 16,812 As of December 31, 2016 and 2015 , the Company capitalized $0.6 million and $0.5 million of stock-based compensation expenses as inventory, respectively. Defined Benefit Plans Certain of the Company’s subsidiaries sponsor defined benefit pension plans or non-retirement post-employment benefits covering substantially all of their employees. Benefits are provided based on employees’ years of service and earnings, or in accordance with applicable employee benefit regulations. The Company’s practice is to fund amounts sufficient to meet the requirements set forth in the applicable employee benefit and tax regulations. The cost recorded of $2.8 million and $2.8 million for the three months ended December 31, 2016 and 2015 , respectively, and $8.4 million and $8.6 million for the nine months ended December 31, 2016 and 2015 , respectively, was primarily related to service costs.

Income Taxes

Income Taxes	9 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company is incorporated in Switzerland but operates in various countries with differing tax laws and rates. Further, a portion of the Company’s income before taxes and the provision for (benefit from) income taxes are generated outside of Switzerland. The income tax provision for the three months ended December 31, 2016 was $1.6 million based on an effective income tax rate of 1.7% of pre-tax income, compared to an income tax provision of $1.4 million based on an effective income tax rate of 2.1% of pre-tax income for the three months ended December 31, 2015 . The income tax provision for the nine months ended December 31, 2016 was $10.3 million based on an effective income tax rate of 5.8% of pre-tax income, compared to an income tax provision of $7.0 million based on an effective income tax rate of 5.9% for the nine months ended December 31, 2015 . The change in the effective income tax rate for the three and nine months ended December 31, 2016 , compared to the three and nine months ended December 31, 2015 , is due to the mix of income and losses in the various tax jurisdictions in which the Company operates. In the three months ended December 31, 2016 and December 31, 2015 , there was a discrete tax benefit of $9.4 million and $8.4 million , respectively, from the reversal of uncertain tax positions from the expiration of statutes of limitations. In the nine months ended December 31, 2015 , there was an additional discrete tax benefit of $2.2 million from the preferential income tax rate reduction pursuant to the High and New Technology Enterprise Program in China. As of December 31 and March 31 , 2016 , the total amount of unrecognized tax benefits due to uncertain tax positions was $66.6 million and $69.9 million , respectively, all of which would affect the effective income tax rate if recognized. The Company had $55.6 million in non-current income taxes payable and $1.5 million in current income taxes payable, including interest and penalties, related to its income tax liability for uncertain tax positions as of December 31, 2016 compared to $59.7 million in non-current income taxes payable and $0.1 million in current income taxes payable as of March 31, 2016 . The Company anticipates a settlement with the tax authorities in a foreign jurisdiction in the next twelve months and reclassed $1.4 million from non-current income taxes payable to current income taxes payable as of December 31, 2016. The Company recognizes interest and penalties related to unrecognized tax positions in income tax expense. As of December 31 and March 31, 2016 , the Company had $3.5 million and $3.6 million , respectively, of accrued interest and penalties related to uncertain tax positions. Although the Company has adequately provided for uncertain tax positions, the provisions on these positions may change as revised estimates are made or the underlying matters are settled or otherwise resolved. During fiscal year 2017, the Company will continue to review its tax positions and provide for or reverse unrecognized tax benefits as issues arise. During the next twelve months, it is reasonably possible that the amount of unrecognized tax benefits could increase or decrease significantly due to changes in tax law in various jurisdictions, new tax audits and changes in the U.S. dollar as compared to other currencies. Excluding these factors, uncertain tax positions may decrease by as much as $12.1 million from the lapse of the statutes of limitations in various jurisdictions during the next twelve months.

Balance Sheet Components

Balance Sheet Components	9 Months Ended
	Dec. 31, 2016
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Components	Balance Sheet Components The following table presents the components of certain balance sheet asset amounts as of December 31 and March 31 , 2016 (in thousands): December 31, March 31, Accounts receivable, net: Accounts receivable $ 528,029 $ 332,553 Allowance for doubtful accounts (597 ) (667 ) Allowance for sales returns (22,215 ) (18,526 ) Allowance for cooperative marketing arrangements (41,006 ) (28,157 ) Allowance for customer incentive programs (83,141 ) (60,872 ) Allowance for pricing programs (103,393 ) (81,553 ) $ 277,677 $ 142,778 Inventories: Raw materials $ 28,484 $ 48,489 Finished goods 221,802 180,297 $ 250,286 $ 228,786 Other current assets: Income tax and value-added tax receivables $ 21,237 $ 22,572 Prepaid expenses and other assets 22,102 12,916 $ 43,339 $ 35,488 Property, plant and equipment, net: Property, plant and equipment at cost $ 373,097 371,212 Less: accumulated depreciation and amortization (288,903 ) (278,352 ) $ 84,194 $ 92,860 Other assets: Deferred tax assets $ 55,773 $ 56,208 Trading investments for deferred compensation plan 14,724 14,836 Investments held in privately held companies 10,434 9,247 Other assets 4,797 6,525 $ 85,728 $ 86,816 The following table presents the components of certain balance sheet liability amounts as of December 31 and March 31, 2016 (in thousands): December 31, March 31, Accrued and other current liabilities: Accrued personnel expenses * $ 83,645 $ 46,025 Indirect customer incentive programs 51,224 28,721 Warranty accrual 13,692 11,880 Employee benefit plan obligation 1,899 1,285 Income taxes payable 7,163 1,553 Contingent consideration for business acquisition - current portion 1,688 — Other current liabilities 88,652 84,300 $ 247,963 $ 173,764 Non-current liabilities: Warranty accrual $ 8,429 $ 8,500 Obligation for deferred compensation plan 14,724 14,836 Employee benefit plan obligation 50,843 53,909 Deferred rent 8,323 9,424 Deferred tax liability 1,665 1,665 Contingent consideration for business acquisition - non-current portion 6,387 — Other non-current liabilities 1,338 1,201 $ 91,709 $ 89,535 * The increase in accrued personnel expenses as of December 31, 2016 compared with March 31, 2016 was primarily due to change in the payment frequency of our cash bonus plan from semi-annual to annual, and a strong performance for the first nine months of fiscal year 2017.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Dec. 31, 2016
Financial Instruments, Owned, at Fair Value [Abstract]
Fair Value Measurements	Fair Value Measurements Fair Value Measurements The Company considers fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. The Company utilizes the following three-level fair value hierarchy to establish the priorities of the inputs used to measure fair value: • Level 1 — Quoted prices in active markets for identical assets or liabilities. • Level 2 — Observable inputs other than quoted market prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. • 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. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. The following table presents the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis, excluding assets related to the Company’s defined benefit pension plans, classified by the level within the fair value hierarchy (in thousands): December 31, 2016 March 31, 2016 Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Assets: Cash equivalents $ 340,964 $ — $ — $ 10,000 $ — $ — Trading investments for deferred compensation plan: Money market funds $ 3,024 $ — $ — $ 3,467 $ — $ — Mutual funds 11,700 — — 11,369 — — Total of trading investments for deferred compensation plan $ 14,724 $ — $ — $ 14,836 $ — $ — Currency exchange derivative assets $ — $ 825 $ — $ — $ 10 $ — Liabilities: Acquisition-related contingent consideration $ — $ — 8,075 $ — $ — $ — Currency exchange derivative liabilities $ — $ 69 $ — $ — $ 1,132 $ — The following table summarizes the change in fair value of the Company’s contingent consideration balance during the three and nine months ended December 31, 2016 and 2015 (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Beginning of the period $ 18,000 $ — $ — $ — Fair value of contingent consideration upon acquisition — — 18,000 — Change in fair value of contingent consideration (9,925 ) — (9,925 ) — End of the period $ 8,075 $ — $ 8,075 $ — Investment Securities The marketable securities for the Company's deferred compensation plan are recorded at a fair value of $14.7 million and $14.8 million , respectively, as of December 31, 2016 and March 31, 2016 , based on quoted market prices. Quoted market prices are observable inputs that are classified as Level 1 within the fair value hierarchy. Unrealized trading gains / (losses) related to trading securities for the three or nine months ended December 31, 2016 and 2015 were not material and are included in " other income (expense), net " in the Company's condensed consolidated statements of operations. Acquisition-related contingent consideration The acquisition-related contingent consideration liability arising from the Jaybird Acquisition (see "Note 3 - Business Acquisitions" to the condensed consolidated financial statements for more information) represents the future potential earn-out payments of up to $45 million based on the achievement of certain net revenue targets over approximately a two year period. If the net revenue targets are met, the Company will pay a maximum of $25 million and $20 million in fiscal years 2018 and 2019, respectively. The fair value of the earn-out as of the Acquisition Date was $18 million , which was determined by using a Monte Carlo Simulation that includes significant unobservable inputs such as a risk-adjusted discount rate of 16% and projected net sales of Jaybird over the earn-out period. The fair value is remeasured at each reporting period at the estimated fair value based on the inputs on the date of remeasurement, with the change in fair value recognized as "change in fair value of contingent consideration for business acquisition" in the operating expense section in the condensed consolidated statements of operations. Projected net sales are based on our internal projections, including analysis of the target markets. The fair value of the contingent consideration was decreased to $8.1 million as of December 31, 2016 . The change in fair value of contingent consideration results primarily from Jaybird's lower-than-expected net sales during the three months ended December 31, 2016 and revised projected net sales in the remaining earn-out period, primarily driven by supply constraints, an evolving product portfolio and changes in the competitive target market. Although these estimates are based on management’s best knowledge of current events, the estimates could change significantly from period to period. Any changes to the significant unobservable inputs used, including change in the forecast of net sales for the earn-out periods, may result in change in the fair value of contingent consideration, and could have a material impact on future results of operations. Actual payment of contingent consideration in the future could be different from the current estimated fair value of the contingent consideration. Assets Measured at Fair Value on a Nonrecurring Basis The Company’s non-marketable cost method investments, and non-financial assets, such as goodwill, intangible assets and property, plant and equipment, are recorded at fair value only upon initial recognition or if an impairment is recognized. There were no impairments of long-lived assets during the three and nine months ended December 31, 2016 or 2015 . Non-marketable cost method investments. These investments are classified as Level 3 due to the absence of quoted market prices, the inherent lack of liquidity, and the fact that inputs used to measure fair value are unobservable and require management's judgment. When certain events or circumstances indicate that impairment may exist, the Company revalues the investments using various assumptions, including the financial metrics and ratios of comparable public companies. The primary investment included in non-marketable investments is the Company’s investment in Series A Preferred Stock of Lifesize recorded at the fair value of $5.6 million on the date of the Lifesize divestiture. The aggregate recorded amount of cost method investments included in other assets as of December 31, 2016 and March 31, 2016 was $7.4 million .

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Under certain agreements with the respective counterparties to the Company’s derivative contracts, subject to applicable requirements, the Company is allowed to net settle transactions of the same type with a single net amount payable by one party to the other. However, the Company presents its derivative assets and derivative liabilities on a gross basis on the condensed consolidated balance sheets as of December 31, 2016 and March 31, 2016 . The fair values of the Company’s derivative instruments not designated as hedging instruments were not material as of December 31, 2016 or March 31, 2016 . The following table presents the fair values of the Company’s derivative instruments designated as hedging instruments on a gross basis in other current assets or accrued and other current liabilities on its condensed consolidated balance sheets as of December 31, 2016 and March 31, 2016 (in thousands): Derivatives Asset Liability December 31, March 31, December 31, March 31, Cash flow hedges $ 825 $ 10 $ — $ 1,038 The amount of gain (loss) recognized on derivatives not designated as hedging instruments were not material in all periods presented herein. The following table presents the amounts of gains (losses) on the Company’s derivative instruments designated as hedging instruments and their locations on its condensed consolidated statements of operations and condensed consolidated statements of comprehensive income for the three and nine months ended December 31, 2016 and 2015 (in thousands): Three Months Ended Amount of Gain (Loss) Amount of Loss (Gain) 2016 2015 2016 2015 Cash flow hedges $ 2,034 $ (17 ) $ (463 ) $ 45 Nine Months Ended Amount of Gain (Loss) Amount of Loss (Gain) 2016 2015 2016 2015 Cash flow hedges $ 4,458 $ (3,679 ) $ 432 $ (2,443 ) Cash Flow Hedges The Company enters into currency exchange forward contracts to hedge against exposure to changes in currency exchange rates related to its subsidiaries’ forecasted inventory purchases. The Company has one entity with a Euro functional currency that purchases inventory in U.S. Dollars. The primary risk managed by using derivative instruments is the currency exchange rate risk. However, there can be no assurance the hedges will offset more than a portion of the financial impact resulting from movements in currency exchange rates. The Company has designated these derivatives as cash flow hedges. These hedging contracts mature within four months, and are denominated in the same currency as the underlying transactions. Gains and losses in the fair value of the effective portion of the hedges are deferred as a component of accumulated other comprehensive loss until the hedged inventory purchases are sold, at which time the gains or losses are reclassified to cost of goods sold. The Company assesses the effectiveness of the hedges by comparing changes in the spot rate of the currency underlying the forward contract with changes in the spot rate of the currency in which the forecasted transaction will be consummated. If the underlying transaction being hedged fails to occur or if a portion of the hedge does not generate offsetting changes in the currency exposure of forecasted inventory purchases, the Company immediately recognizes the gain or loss on the associated financial instrument in other income (expense), net . Such gains and losses were not material during the three and nine months ended December 31, 2016 and 2015 . Cash flows from such hedges are classified as operating activities in the condensed consolidated statements of cash flows. The notional amounts of currency exchange forward contracts outstanding related to forecasted inventory purchases were $55.7 million and $39.8 million at December 31, 2016 and March 31, 2016 , respectively. The Company estimates that $2.7 million of net gains related to its cash flow hedges included in accumulated other comprehensive loss as of December 31, 2016 will be reclassified into earnings within the next 12 months. Other Derivatives The Company also enters into currency exchange forward and swap contracts to reduce the short-term effects of currency exchange rate fluctuations on certain foreign currency receivables or payables. These contracts generally mature within one month. The primary risk managed by using forward and swap contracts is the currency exchange rate risk. The gains or losses on currency exchange contracts are recognized in other income (expense), net based on the changes in fair value. The notional amounts of currency exchange forward and swap contracts outstanding as of December 31 and March 31, 2016 relating to foreign currency receivables or payables were $86.6 million and $63.7 million , respectively. Open forward and swap contracts outstanding as of December 31, 2016 and March 31, 2016 consisted of contracts in Mexican Pesos, Japanese Yen, British Pounds, Taiwanese Dollars, Canadian Dollars and Australian Dollars to be settled at future dates at pre-determined exchange rates. The fair value of all currency exchange forward and swap contracts is determined based on observable market transactions of spot currency rates and forward rates. Cash flows from these contracts are classified as operating activities in the condensed consolidated statements of cash flows.

Goodwill

Goodwill	9 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill The Company performed its annual impairment analysis of the goodwill as of December 31, 2016 by performing a qualitative assessment and concluded that it was more likely than not that the fair value of its peripherals reporting unit, the only reportable segment of the Company, exceeded its carrying amount. In assessing the qualitative factors, the Company considered the impact of these key factors: change in industry and competitive environment, growth in market capitalization to $4.0 billion as of December 31, 2016 from $2.5 billion a year ago, and budgeted-to-actual revenue performance from the last twelve months. The following table summarizes the activities in the Company’s goodwill balance during the nine months ended December 31, 2016 (in thousands): As of March 31, 2016 $ 218,224 Business acquisitions (See Note 3) 31,553 Currency impact (56 ) As of December 31, 2016 $ 249,721

Financing Arrangements

Financing Arrangements	9 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Financing Arrangements	Financing Arrangements The Company had several uncommitted, unsecured bank lines of credit aggregating $43.2 million as of December 31, 2016 . There are no financial covenants under these lines of credit with which the Company must comply. As of December 31, 2016 , the Company had outstanding bank guarantees of $18.3 million under these lines of credit. There was no borrowing outstanding under these lines of credit as of December 31, 2016 or March 31, 2016 .

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Product Warranties All of the Company’s peripherals products sold are covered by warranty to be free from defects in material and workmanship. For products launched prior to April 1, 2014, the standard warranty period was up to five years. Starting from April 1, 2014, the standard warranty for all new products launched was changed to two years from date of purchase for European Countries and generally one year from date of purchase for all other countries. At the time of sale, the Company accrues a warranty liability for estimated costs to provide products, parts or services to repair or replace products in satisfaction of the warranty obligation. The Company’s estimate of costs to fulfill its warranty obligations is based on historical experience and expectations of future conditions. When the Company experiences changes in warranty claim activity or costs associated with fulfilling those claims, the warranty liability is adjusted accordingly. Changes in the Company’s warranty liability for the three and nine months ended December 31, 2016 and 2015 were as follows (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Beginning of the period $ 21,612 $ 20,399 $ 20,380 $ 21,710 Assumed from business acquisition — 1,963 — Provision 4,521 2,023 10,861 5,815 Settlements (3,550 ) (2,763 ) (10,430 ) (8,008 ) Currency impact (462 ) (153 ) (653 ) (11 ) End of the period $ 22,121 $ 19,506 $ 22,121 $ 19,506 Other Contingencies In April 2016, the Company entered into a settlement with the SEC related to the accounting for Revue inventory valuation reserves that resulted in the restatement described in the Fiscal Year 2014 Annual Report on Form 10-K, revision to its consolidated financial statements concerning warranty accruals and amortization of intangible assets presented in its Amended Annual Report on Form 10-K/A, filed on August 7, 2013, and its transactions with a distributor for Fiscal Year 2007 through Fiscal Year 2009. The Company entered into the settlement without admitting or denying the findings of the SEC’s investigation and paid a civil penalty of $7.5 million in April 2016. Guarantees Logitech Europe S.A. guaranteed payments of certain third-party contract manufacturers’ purchase obligations. As of December 31, 2016 , the maximum amount of this guarantee was $3.8 million , of which $1.7 million of guaranteed purchase obligations were outstanding. Indemnifications The Company indemnifies certain of its suppliers and customers for losses arising from matters such as intellectual property disputes and product safety defects, subject to certain restrictions. The scope of these indemnities varies, but in some instances, includes indemnification for damages and expenses, including reasonable attorneys’ fees. As of December 31, 2016 , no amounts have been accrued for these indemnification provisions. The Company does not believe, based on historical experience and information currently available, that it is probable that any material amounts will be required to be paid under its indemnification arrangements. The Company also indemnifies its current and former directors and certain of its current and former officers. Certain costs incurred for providing such indemnification may be recoverable under various insurance policies. The Company is unable to reasonably estimate the maximum amount that could be payable under these arrangements because these exposures are not limited, the obligations are conditional in nature and the facts and circumstances involved in any situation that might arise are variable. The stock purchase agreement entered on December 28, 2015 in connection with the investment by three venture capital firms in Lifesize, Inc. contains representations, warranties and covenants of Logitech and Lifesize, Inc. to the Investors. Logitech has agreed, subject to certain limitations, to indemnify the Investors and certain persons related to the Investors for certain losses resulting from breaches of or inaccuracies in such representations, warranties and covenants as well as certain other obligations, including third-party expenses, restructuring costs and pre-closing tax obligations of Lifesize. Legal Proceedings From time to time the Company is involved in claims and legal proceedings that arise in the ordinary course of its business. The Company is currently subject to several such claims and a small number of legal proceedings. The Company believes that these matters lack merit and intends to vigorously defend against them. Based on currently available information, the Company does not believe that resolution of pending matters will have a material adverse effect on its financial condition, cash flows or results of operations. However, litigation is subject to inherent uncertainties, and there can be no assurances that the Company’s defenses will be successful or that any such lawsuit or claim would not have a material adverse impact on the Company’s business, financial condition, cash flows or results of operations in a particular period. Any claims or proceedings against the Company, whether meritorious or not, can have an adverse impact because of defense costs, diversion of management and operational resources, negative publicity and other factors. Any failure to obtain necessary license or other rights, or litigation arising out of intellectual property claims, could adversely affect the Company’s business.

Shareholders' Equity

Shareholders' Equity	9 Months Ended
	Dec. 31, 2016
Stockholders' Equity Note [Abstract]
Shareholders' Equity	Shareholders’ Equity Share Repurchase Program In March 2014, the Company’s Board of Directors approved the 2014 share buyback program, which authorizes the Company to use up to $250.0 million to purchase its own shares. The Company’s share buyback program is expected to remain in effect for a period of three years . Shares may be repurchased from time to time on the open market, through block trades or trading plan or otherwise. Opportunistic share repurchases may be started or stopped at any time without prior notice depending on market conditions and other factors. During the three months ended December 31, 2016 , 0.9 million shares were repurchased for $20.9 million . There were no share repurchases during the three months ended December 31, 2015. During the nine months ended December 31, 2016 and 2015 , 3.3 million and 3.5 million shares were repurchased for $63.8 million and $48.8 million , respectively. Cash Dividend on Shares of Common Stock During the nine months ended December 31, 2016 , the Company declared and paid cash dividends of CHF 0.56 (USD equivalent of $0.57 ) per common share, totaling $93.1 million on the Company's outstanding common stock. During the nine months ended December 31, 2015 , the Company declared and paid cash dividends of CHF 0.51 (USD equivalent of $0.53 ) per common share, totaling $85.9 million on the Company's outstanding common stock. Any future dividends will be subject to the approval of the Company's shareholders. Accumulated Other Comprehensive Loss On total company basis, the components of accumulated other comprehensive income (loss) were as follows (in thousands): Accumulated Other Comprehensive Income (Loss) Cumulative Defined Deferred Total March 31, 2016 $ (84,038 ) $ (26,171 ) $ (1,776 ) $ (111,985 ) Other comprehensive income (7,714 ) 2,809 4,458 (447 ) December 31, 2016 $ (91,752 ) $ (23,362 ) $ 2,682 $ (112,432 ) (1) Tax effect was not significant as of December 31 or March 31, 2016 .

Segment Information

Segment Information	9 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Segment Information	Segment Information The Company has determined that it operates in a single operating segment that encompasses the design, manufacturing and marketing of peripherals for PCs, tablets and other digital platforms. Operating performance measures are provided directly to the Company's Chief Executive Officer (“CEO”), who is considered to be the Company’s Chief Operating Decision Maker (“CODM”). The CEO periodically reviews information such as net sales and operating income (loss) to make business decisions. These operating performance measures do not include restructuring charges (credits), net, share-based compensation expense, amortization of intangible assets, charges from the purchase accounting effect on inventory, acquisition-related costs, investigation and related expenses, or change in fair value of acquisition-related contingent consideration. Net sales by product categories and sales channels, excluding intercompany transactions, for the three and nine months ended December 31, 2016 and 2015 were as follows (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Mobile Speakers $ 106,578 $ 85,081 $ 261,046 $ 206,175 Audio-PC & Wearables 67,225 57,300 186,058 149,341 Gaming 107,181 77,706 242,874 189,000 Video Collaboration 35,807 26,216 88,298 67,460 Home Control 26,942 25,684 49,916 48,548 Pointing Devices 142,166 139,711 382,249 381,364 Keyboards & Combos 125,289 116,531 359,824 324,458 Tablet & Other Accessories 24,852 35,873 59,351 73,222 PC Webcams 30,503 29,648 80,072 74,689 Other (1) 164 817 1,187 1,961 Total net retail sales 666,707 594,567 1,710,875 1,516,218 OEM — 26,512 — 71,041 Total net sales $ 666,707 $ 621,079 $ 1,710,875 $ 1,587,259 (1) Other category includes products that the Company currently intends to transition out of, or has already transitioned out of, because they are no longer strategic to the Company's business. Net sales to unaffiliated customers by geographic region (based on the customers’ location) for the three and nine months ended December 31, 2016 and 2015 were as follows (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Americas $ 290,724 $ 279,286 $ 753,179 $ 719,735 EMEA 233,251 205,827 576,809 494,592 Asia Pacific 142,732 135,966 380,887 372,932 Total net sales $ 666,707 $ 621,079 $ 1,710,875 $ 1,587,259 Sales are attributed to countries on the basis of the customers’ locations. The United States and Germany each represented more than 10% of the Company’s total consolidated net sales from continuing operations for the three and nine months ended December 31, 2016 . The United States represented more than 10% of the Company’s total consolidated net sales from continuing operations for the three and nine months ended December 31, 2015 . Switzerland, the Company’s home domicile, represented 2% of the Company’s total consolidated net sales from continuing operations for all the periods presented herein. Two customer groups of the Company each represented more than 10% of total consolidated sales from continuing operations for all the periods presented herein. Long-lived assets by geographic region were as follows (in thousands): December 31, March 31, Americas $ 37,959 $ 40,221 EMEA 3,358 3,194 Asia Pacific 42,877 49,445 Total $ 84,194 $ 92,860 Long-lived assets in the United States and China were $37.8 million and $36.5 million , respectively, as of December 31, 2016 , and $40.0 million and $44.5 million , respectively, as of March 31, 2016 . No other countries represented more than 10% of the Company’s total consolidated long-lived assets as of December 31 or March 31, 2016 . Long-lived assets in Switzerland, the Company’s home domicile, were $1.8 million and $1.7 million as of December 31 and March 31, 2016 , respectively.

Restructuring

Restructuring	9 Months Ended
	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring During the first quarter of fiscal year 2016, the Company implemented a restructuring plan to exit the OEM business, reorganize Lifesize to sharpen its focus on its cloud-based offering, and streamline the Company's overall cost structure through product, overhead and infrastructure cost reductions with a targeted resource realignment. Charges and other costs related to the workforce reduction and structure realignment are presented as restructuring charges in the condensed consolidated statements of operations. On a total company basis, including the Lifesize video conferencing business as reported in discontinued operations, the Company has incurred approximately $25.5 million under this restructuring plan, including approximately $24.4 million for cash severance and other personnel costs. The Company substantially completed this restructuring plan by the fourth quarter of fiscal year 2016. The following table summarizes restructuring related activities during the three and nine months ended December 31, 2016 : Restructuring Termination Lease Exit Total Accrual balance at March 31, 2016 $ 6,275 $ 125 $ 6,400 Credits, net (85 ) — (85 ) Cash payments (1,908 ) (125 ) (2,033 ) Accrual balance at June 30, 2016 $ 4,282 $ — $ 4,282 Charges 74 — 74 Cash payments (1,473 ) — (1,473 ) Accrual balance at September 30, 2016 $ 2,883 $ — $ 2,883 Credits, net (33 ) — (33 ) Cash payments (1,200 ) — (1,200 ) Accrual balance at December 31, 2016 $ 1,650 $ — $ 1,650

The Company and Summary of Si23

The Company and Summary of Significant Accounting Policies and Estimates (Policies)	9 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated interim financial statements include the accounts of Logitech and its subsidiaries. All intercompany balances and transactions have been eliminated. The condensed consolidated financial statements are presented in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and therefore do not include all the information required by GAAP for complete financial statements. They should be read in conjunction with the Company’s audited consolidated financial statements for the fiscal year ended March 31, 2016, included in its Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on May 23, 2016. In the opinion of management, these condensed consolidated financial statements include all adjustments, consisting of only normal and recurring adjustments, necessary and in all material aspects, for a fair statement of the results of operations, comprehensive income, financial position, cash flows and changes in shareholders' equity for the periods presented. Operating results for the three and nine months ended December 31, 2016 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2017, or any future periods.
Reclassification	Reclassification Certain amounts from the comparative period in the accompanying unaudited condensed consolidated financial statements have been reclassified to conform to the condensed consolidated financial statement presentation as of and for the three and nine months ended December 31, 2016 .
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Examples of significant estimates and assumptions made by management involve the fair value of goodwill, intangible assets acquired from business acquisitions, warranty liabilities, accruals for discretionary customer programs, sales return reserves, allowance for doubtful accounts, inventory valuation, restructuring charges, contingent consideration from business acquisitions and periodical reassessment of its fair value, share-based compensation expense, uncertain tax positions, and valuation allowances for deferred tax assets. Although these estimates are based on management’s best knowledge of current events and actions that may impact the Company in the future, actual results could differ materially from those estimates.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, "Revenue from Contracts with Customers (Topic 606)" ("ASU 2014-09"). ASU 2014-09 outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. Under the new model, recognition of revenue occurs when a customer obtains control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the new standard requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. ASU 2014-09 was originally to be effective for the Company on April 1, 2017. In July 2015, the FASB affirmed a one-year deferral of the effective date of the new revenue standard. The new standard will become effective for the Company on April 1, 2018. Early application is permitted but not before the original effective date of annual periods beginning after December 15, 2016. The new standard is required to be applied retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying it recognized at the date of initial application. Subsequently, the FASB has issued the following standards related to ASU 2014-09: ASU No. 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations" (“ASU 2016-08”); ASU No. 2016-10, "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing" (“ASU 2016-10”); and ASU No. 2016-12, "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients" (“ASU 2016-12”). The Company must adopt ASU 2016-08, ASU 2016-10 and ASU 2016-12 with ASU 2014-09 (collectively, the “new revenue standards”). The Company has not yet selected a transition method and is in process of assessing all potential impacts of the new standard. The new revenue standard will be adopted effective April 1, 2018. In July 2015, the FASB issued ASU No. 2015-11, "Simplifying the Measurement of Inventory (Topic 330)" ("ASU 2015-11"). Topic 330, Inventory, currently requires an entity to measure inventory at the lower of cost or market, with market value represented by replacement cost, net realizable value or net realizable value less a normal profit margin. The amendments in ASU 2015-11 require an entity to measure inventory at the lower of cost or net realizable value. ASU 2015-11 is effective in the first quarter of fiscal year 2018 for the Company, with early adoption permitted. The Company does not expect to early adopt this guidance and does not expect the adoption of this guidance to have a material impact on its condensed consolidated financial statements. In January 2016, the FASB issued ASU 2016-01 “ Financial Instruments- Recognition and Measurement of Financial Assets and Financial Liabilities (Subtopic 825-10) ”. The guidance is effective in the first quarter of fiscal year 2018 for the Company, with early adoption permitted. The Company does not expect to early adopt this guidance and does not believe that the adoption of this guidance will have a material impact on its condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02 " Leases (Topic 842) " ("ASU 2016-02"), which requires the recognition of lease assets and lease liabilities arising from operating leases in the statement of financial position. This guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is evaluating the full effect that ASU 2016-02 will have on its condensed consolidated financial statements and will adopt the standard effective April 1, 2019. In March 2016, the FASB issued ASU 2016-09 "Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting" ("ASU 2016-09"). The amendment simplifies several aspects of the accounting for share-based payments, including immediate recognition of all excess tax benefits and deficiencies in the income statement, changing the threshold to qualify for equity classification up to the employees' maximum statutory tax rates, allowing an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures as they occur, and clarifying the classification on the statement of cash flows for the excess tax benefit and employee taxes paid when an employer withholds shares for tax-withholding purposes. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted in any interim or annual period. The Company will adopt this standard effective April 1, 2017 and is in the process of evaluating the effect that ASU 2016-09 will have on its condensed consolidated financial statements. In August 2016, the FASB issued ASU 2016-15 "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" ("ASU 2016-15"), which gives guidance and reduces diversity in practice with respect to certain types of cash flows. The Company has early adopted this guidance during the second quarter of fiscal year 2017 and the adoption did not impact its condensed consolidated financial statements. In October 2016, the FASB issued ASU 2016-16 "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory" ("ASU 2016-16"), which eliminates the deferral of income tax effects of intra-entity asset transfers until the transferred asset is sold to an unrelated party or recovered through use. ASU 2016-16, however, does not apply to intra-entity transfer of inventory. The guidance is effective for annual periods beginning after December 15, 2017 and interim reporting periods within those annual periods. Early adoption is permitted but only in the first interim period of a fiscal year. The cumulative effect of change on equity upon adoption is to be quantified under the modified retrospective approach and recorded as of the beginning of the period of adoption. The Company is evaluating the full effect that ASU 2016-16 will have on its condensed consolidated financial statements and will adopt the standard effective April 1, 2018. In December 2016, the FASB issued ASU 2016-18 "Statement of Cash Flows (Topic 230): Restricted Cash" ("ASU 2016-18"), which requires that a statement of cash flows explains the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The standard is effective for annual periods beginning after December 15, 2017 and interim reporting periods within those annual periods, with early adoption permitted. The adoption of this standard should be applied using a retrospective transition method to each period presented. The Company does not expect the adoption of ASU 2016-18 will have a material impact on its condensed consolidated financial statements and is evaluating the timing of adoption of this standard. In January 2017, the FASB issued ASU 2017-04, "Simplifying the Test for Goodwill Impairment (Topic 330)"("ASU 2017-04"), which removes Step 2 from the goodwill impairment test. The standard will be effective for the Company for annual or any interim goodwill impairments in fiscal year beginning December 15, 2019, with early adoption permitted. The Company does not expect the adoption of ASU 2017-14 will have an impact on its condensed consolidated financial statements and is evaluating the timing of adoption of this standard.

Discontinued Operations (Tables

Discontinued Operations (Tables)	9 Months Ended
	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Financial Results of Discontinued Operation	The following table presents financial results of the video conferencing segment classified as total discontinued operations for the three and nine months ended December 31, 2015 (in thousands): Three Months Ended Nine Months Ended 2015 2015 Net sales $ 21,553 $ 65,554 Cost of goods sold 8,240 24,951 Gross profit 13,313 40,603 Operating expenses: Marketing and selling 8,877 31,550 Research and development 4,924 16,592 General and administrative 1,836 5,308 Restructuring charges, net 1,064 8,070 Total operating expenses 16,701 61,520 Operating loss from discontinued operations (3,388 ) (20,917 ) Interest and other expense, net (47 ) (180 ) Loss from discontinued operations before income taxes (3,435 ) (21,097 ) Benefit from income taxes (481 ) (365 ) Net loss from discontinued operations $ (2,954 ) $ (20,732 )

Business Acquisitions (Tables)

Business Acquisitions (Tables)	9 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Schedule of Aggregate Consideration in Business Combinations	The Jaybird transaction meets the definition of a business and is accounted for using the acquisition method. The fair value of consideration transferred for the Jaybird Acquisition consists of the following (in thousands): Purchase price $ 54,242 Fair value of contingent consideration (earn-out) 18,000 Fair value of total consideration transferred $ 72,242
Schedule of Allocation of Purchase Consideration	The following table summarizes the preliminary allocation of the total consideration transferred to the estimated fair values of the assets acquired and liabilities assumed at the Acquisition Date (in thousands): Estimated Fair Value Cash and cash equivalents $ 255 Accounts receivable 272 Inventories 10,214 Other current assets 611 Property, plant, and equipment 1,165 Intangible assets 50,280 Other assets 27 Total identifiable assets acquired 62,824 Accounts payable (10,513 ) Accrued liabilities (1,227 ) Other current liabilities (5,226 ) Other long-term liabilities (283 ) Net identifiable assets acquired $ 45,575 Goodwill 26,667 Net assets acquired $ 72,242
Schedule of Intangible Assets Acquired	The following table sets forth the components of identifiable intangible assets acquired at their estimated fair values and their estimated useful lives as of the Acquisition Date (Dollars in thousands): Preliminary Fair Value Estimated Useful Life (years) Developed technology $ 18,450 4 In-process research & development ("IPR&D") 2,550 Not Applicable Customer relationships 19,900 8 Trade name 9,380 6 Total intangible assets acquired $ 50,280

Net Income Per Share (Tables)

Net Income Per Share (Tables)	9 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Schedule of computations of basic and diluted net income per share	The computations of basic and diluted net income per share for the Company were as follows (in thousands, except per share amounts): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Net Income (loss): Continuing operations $ 97,465 $ 68,040 $ 166,451 $ 111,352 Discontinued operations — (2,954 ) — (20,732 ) Net income $ 97,465 $ 65,086 $ 166,451 $ 90,620 Shares used in net income (loss) per share computation: Weighted average shares outstanding - basic 161,977 162,669 162,070 163,521 Effect of potentially dilutive equivalent shares 3,924 2,499 3,141 2,430 Weighted average shares outstanding - diluted 165,901 165,168 165,211 165,951 Net income (loss) per share - basic: Continuing operations $ 0.60 $ 0.42 $ 1.03 $ 0.68 Discontinued operations — (0.02 ) — (0.13 ) Net income per share - basic $ 0.60 $ 0.40 $ 1.03 $ 0.55 Net income (loss) per share - diluted: Continuing operations $ 0.59 $ 0.41 $ 1.01 $ 0.67 Discontinued operations — (0.02 ) — (0.12 ) Net income per share - diluted $ 0.59 $ 0.39 $ 1.01 $ 0.55

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of share-based compensation expense and related tax benefit recognized	The following table summarizes the share-based compensation expense and related tax benefit recognized for the three and nine months ended December 31, 2016 and 2015 , excluding balances classified as discontinued operations (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Cost of goods sold $ 617 $ 464 $ 1,930 $ 1,648 Marketing and selling 4,006 2,484 10,687 6,545 Research and development 1,176 846 3,007 2,174 General and administrative 3,588 2,668 10,730 8,917 Restructuring — — — 7 Total share-based compensation expense 9,387 6,462 26,354 19,291 Income tax benefit (2,391 ) (1,446 ) (6,092 ) (2,479 ) Total share-based compensation expense, net of income tax $ 6,996 $ 5,016 $ 20,262 $ 16,812

Balance Sheet Components (Table

Balance Sheet Components (Tables)	9 Months Ended
	Dec. 31, 2016
Balance Sheet Related Disclosures [Abstract]
Schedule of components of balance sheet asset	The following table presents the components of certain balance sheet asset amounts as of December 31 and March 31 , 2016 (in thousands): December 31, March 31, Accounts receivable, net: Accounts receivable $ 528,029 $ 332,553 Allowance for doubtful accounts (597 ) (667 ) Allowance for sales returns (22,215 ) (18,526 ) Allowance for cooperative marketing arrangements (41,006 ) (28,157 ) Allowance for customer incentive programs (83,141 ) (60,872 ) Allowance for pricing programs (103,393 ) (81,553 ) $ 277,677 $ 142,778 Inventories: Raw materials $ 28,484 $ 48,489 Finished goods 221,802 180,297 $ 250,286 $ 228,786 Other current assets: Income tax and value-added tax receivables $ 21,237 $ 22,572 Prepaid expenses and other assets 22,102 12,916 $ 43,339 $ 35,488 Property, plant and equipment, net: Property, plant and equipment at cost $ 373,097 371,212 Less: accumulated depreciation and amortization (288,903 ) (278,352 ) $ 84,194 $ 92,860 Other assets: Deferred tax assets $ 55,773 $ 56,208 Trading investments for deferred compensation plan 14,724 14,836 Investments held in privately held companies 10,434 9,247 Other assets 4,797 6,525 $ 85,728 $ 86,816
Schedule of components of balance sheet liability	The following table presents the components of certain balance sheet liability amounts as of December 31 and March 31, 2016 (in thousands): December 31, March 31, Accrued and other current liabilities: Accrued personnel expenses * $ 83,645 $ 46,025 Indirect customer incentive programs 51,224 28,721 Warranty accrual 13,692 11,880 Employee benefit plan obligation 1,899 1,285 Income taxes payable 7,163 1,553 Contingent consideration for business acquisition - current portion 1,688 — Other current liabilities 88,652 84,300 $ 247,963 $ 173,764 Non-current liabilities: Warranty accrual $ 8,429 $ 8,500 Obligation for deferred compensation plan 14,724 14,836 Employee benefit plan obligation 50,843 53,909 Deferred rent 8,323 9,424 Deferred tax liability 1,665 1,665 Contingent consideration for business acquisition - non-current portion 6,387 — Other non-current liabilities 1,338 1,201 $ 91,709 $ 89,535 * The increase in accrued personnel expenses as of December 31, 2016 compared with March 31, 2016 was primarily due to change in the payment frequency of our cash bonus plan from semi-annual to annual, and a strong performance for the first nine months of fiscal year 2017.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Dec. 31, 2016
Financial Instruments, Owned, at Fair Value [Abstract]
Schedule of financial assets and liabilities accounted for at fair value and classified by level within the fair value hierarchy	The following table presents the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis, excluding assets related to the Company’s defined benefit pension plans, classified by the level within the fair value hierarchy (in thousands): December 31, 2016 March 31, 2016 Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Assets: Cash equivalents $ 340,964 $ — $ — $ 10,000 $ — $ — Trading investments for deferred compensation plan: Money market funds $ 3,024 $ — $ — $ 3,467 $ — $ — Mutual funds 11,700 — — 11,369 — — Total of trading investments for deferred compensation plan $ 14,724 $ — $ — $ 14,836 $ — $ — Currency exchange derivative assets $ — $ 825 $ — $ — $ 10 $ — Liabilities: Acquisition-related contingent consideration $ — $ — 8,075 $ — $ — $ — Currency exchange derivative liabilities $ — $ 69 $ — $ — $ 1,132 $ —
Schedule of change in fair value of contingent consideration	The following table summarizes the change in fair value of the Company’s contingent consideration balance during the three and nine months ended December 31, 2016 and 2015 (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Beginning of the period $ 18,000 $ — $ — $ — Fair value of contingent consideration upon acquisition — — 18,000 — Change in fair value of contingent consideration (9,925 ) — (9,925 ) — End of the period $ 8,075 $ — $ 8,075 $ —

Derivative Financial Instrume30

Derivative Financial Instruments (Tables)	9 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Values of Derivative Instruments Designated as Hedging	The following table presents the fair values of the Company’s derivative instruments designated as hedging instruments on a gross basis in other current assets or accrued and other current liabilities on its condensed consolidated balance sheets as of December 31, 2016 and March 31, 2016 (in thousands): Derivatives Asset Liability December 31, March 31, December 31, March 31, Cash flow hedges $ 825 $ 10 $ — $ 1,038
Schedule of Cash Flow Hedges Included in AOCI	The following table presents the amounts of gains (losses) on the Company’s derivative instruments designated as hedging instruments and their locations on its condensed consolidated statements of operations and condensed consolidated statements of comprehensive income for the three and nine months ended December 31, 2016 and 2015 (in thousands): Three Months Ended Amount of Gain (Loss) Amount of Loss (Gain) 2016 2015 2016 2015 Cash flow hedges $ 2,034 $ (17 ) $ (463 ) $ 45 Nine Months Ended Amount of Gain (Loss) Amount of Loss (Gain) 2016 2015 2016 2015 Cash flow hedges $ 4,458 $ (3,679 ) $ 432 $ (2,443 )

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of activity in the goodwill account	The following table summarizes the activities in the Company’s goodwill balance during the nine months ended December 31, 2016 (in thousands): As of March 31, 2016 $ 218,224 Business acquisitions (See Note 3) 31,553 Currency impact (56 ) As of December 31, 2016 $ 249,721

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Schedule of warranty liability	Changes in the Company’s warranty liability for the three and nine months ended December 31, 2016 and 2015 were as follows (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Beginning of the period $ 21,612 $ 20,399 $ 20,380 $ 21,710 Assumed from business acquisition — 1,963 — Provision 4,521 2,023 10,861 5,815 Settlements (3,550 ) (2,763 ) (10,430 ) (8,008 ) Currency impact (462 ) (153 ) (653 ) (11 ) End of the period $ 22,121 $ 19,506 $ 22,121 $ 19,506

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	9 Months Ended
	Dec. 31, 2016
Stockholders' Equity Note [Abstract]
Schedule of components of accumulated other comprehensive income (loss)	On total company basis, the components of accumulated other comprehensive income (loss) were as follows (in thousands): Accumulated Other Comprehensive Income (Loss) Cumulative Defined Deferred Total March 31, 2016 $ (84,038 ) $ (26,171 ) $ (1,776 ) $ (111,985 ) Other comprehensive income (7,714 ) 2,809 4,458 (447 ) December 31, 2016 $ (91,752 ) $ (23,362 ) $ 2,682 $ (112,432 ) (1) Tax effect was not significant as of December 31 or March 31, 2016 .

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Schedule of net sales by product categories, excluding intercompany transactions	Net sales by product categories and sales channels, excluding intercompany transactions, for the three and nine months ended December 31, 2016 and 2015 were as follows (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Mobile Speakers $ 106,578 $ 85,081 $ 261,046 $ 206,175 Audio-PC & Wearables 67,225 57,300 186,058 149,341 Gaming 107,181 77,706 242,874 189,000 Video Collaboration 35,807 26,216 88,298 67,460 Home Control 26,942 25,684 49,916 48,548 Pointing Devices 142,166 139,711 382,249 381,364 Keyboards & Combos 125,289 116,531 359,824 324,458 Tablet & Other Accessories 24,852 35,873 59,351 73,222 PC Webcams 30,503 29,648 80,072 74,689 Other (1) 164 817 1,187 1,961 Total net retail sales 666,707 594,567 1,710,875 1,516,218 OEM — 26,512 — 71,041 Total net sales $ 666,707 $ 621,079 $ 1,710,875 $ 1,587,259 (1) Other category includes products that the Company currently intends to transition out of, or has already transitioned out of, because they are no longer strategic to the Company's business.
Schedule of net sales to unaffiliated customers by geographic region	Net sales to unaffiliated customers by geographic region (based on the customers’ location) for the three and nine months ended December 31, 2016 and 2015 were as follows (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Americas $ 290,724 $ 279,286 $ 753,179 $ 719,735 EMEA 233,251 205,827 576,809 494,592 Asia Pacific 142,732 135,966 380,887 372,932 Total net sales $ 666,707 $ 621,079 $ 1,710,875 $ 1,587,259
Schedule of long-lived assets by geographic region	Long-lived assets by geographic region were as follows (in thousands): December 31, March 31, Americas $ 37,959 $ 40,221 EMEA 3,358 3,194 Asia Pacific 42,877 49,445 Total $ 84,194 $ 92,860

Restructuring (Tables)

Restructuring (Tables)	9 Months Ended
	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Summary of restructuring related activities	The following table summarizes restructuring related activities during the three and nine months ended December 31, 2016 : Restructuring Termination Lease Exit Total Accrual balance at March 31, 2016 $ 6,275 $ 125 $ 6,400 Credits, net (85 ) — (85 ) Cash payments (1,908 ) (125 ) (2,033 ) Accrual balance at June 30, 2016 $ 4,282 $ — $ 4,282 Charges 74 — 74 Cash payments (1,473 ) — (1,473 ) Accrual balance at September 30, 2016 $ 2,883 $ — $ 2,883 Credits, net (33 ) — (33 ) Cash payments (1,200 ) — (1,200 ) Accrual balance at December 31, 2016 $ 1,650 $ — $ 1,650

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) $ in Millions	Dec. 28, 2015USD ($)firmshares
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of venture firms invested in Lifesize | firm	3
Lifesize | Series A Preferred Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of shares retained	12,000,000
Ownership after transaction	37.50%
Lifesize | Series B Preferred Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of shares sold in transaction	2,500,000
Proceeds from sale of shares | $	$ 2.5
Lifesize | Series B Preferred Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of shares sold in transaction	17,500,000
Proceeds from sale of shares | $	$ 17.5
Percentage of ownership from investor	62.50%
Lifesize | Common Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of shares authorized	8,000,000
Lifesize | Preferred Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Fair value of cost method investment | $	$ 5.6

Discontinued Operations - Sche

Discontinued Operations - Schedule of Video Conferencing Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss from discontinued operations	$ 0	$ (2,954)	$ 0	$ (20,732)
Video Conferencing | Lifesize | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		21,553		65,554
Cost of goods sold		8,240		24,951
Gross profit		13,313		40,603
Marketing and selling		8,877		31,550
Research and development		4,924		16,592
General and administrative		1,836		5,308
Restructuring charges, net		1,064		8,070
Total operating expenses		16,701		61,520
Operating loss from discontinued operations		(3,388)		(20,917)
Interest and other expense, net		(47)		(180)
Loss from discontinued operations before income taxes		(3,435)		(21,097)
Benefit from income taxes		(481)		(365)
Net loss from discontinued operations		$ (2,954)		$ (20,732)

Business Acquisitions - Narrati

Business Acquisitions - Narrative (Details) - USD ($)	Sep. 15, 2016	Apr. 20, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2016
Business Acquisition [Line Items]
Amortization of intangible assets						$ 6,618,000	$ 1,536,000
Goodwill			$ 249,721,000		$ 249,721,000	249,721,000				$ 218,224,000
Acquisition-related costs			200,000			1,500,000
Net sales			666,707,000	$ 621,079,000		1,710,875,000	$ 1,587,259,000
Jaybird
Business Acquisition [Line Items]
Purchase price		$ 54,242,000
Purchase accounting effect on inventories					$ 700,000
Intangible assets		50,280,000
Goodwill		$ 26,667,000
Jaybird | Developed technology
Business Acquisition [Line Items]
Amortization of intangible assets			$ 1,200,000			3,200,000
Estimated useful life		4 years	5 years
Jaybird | Developed technology | Level 3
Business Acquisition [Line Items]
Royalty rate for value measurement		10.00%
Discount rate for value measurement		16.00%
Jaybird | Customer Relationships and Trade Names
Business Acquisition [Line Items]
Amortization of intangible assets			$ 1,000,000			2,800,000
Jaybird | Trade name
Business Acquisition [Line Items]
Estimated useful life		6 years
Jaybird | Trade name | Level 3
Business Acquisition [Line Items]
Royalty rate for value measurement		2.50%
Discount rate for value measurement		16.00%
Jaybird | Customer relationships
Business Acquisition [Line Items]
Estimated useful life		8 years
Jaybird | Customer relationships | Level 3
Business Acquisition [Line Items]
Discount rate for value measurement		16.00%
Jaybird | Revenue Growth
Business Acquisition [Line Items]
Maximum earn-out		$ 45,000,000
Jaybird | Revenue Growth | Level 3
Business Acquisition [Line Items]
Discount rate for value measurement		16.00%
Jaybird | Revenue Growth | Scenario, Forecast
Business Acquisition [Line Items]
Earn-out payments (up to)								$ 20,000,000	$ 25,000,000
Saitek Acquisition
Business Acquisition [Line Items]
Purchase price	$ 13,000,000
Intangible assets	6,700,000
Goodwill	4,900,000
Net tangible assets acquired	$ 1,400,000
Jaybird and Saitek acquisitions
Business Acquisition [Line Items]
Net sales			$ 17,400,000			$ 47,300,000

Business Acquisitions - Schedul

Business Acquisitions - Schedule of Consideration in Business Combinations (Details) - Jaybird $ in Thousands	Apr. 20, 2016USD ($)
Business Acquisition [Line Items]
Purchase price	$ 54,242
Fair value of contingent consideration (earn-out)	18,000
Fair value of total consideration transferred	$ 72,242

Business Acquisitions - Recogni

Business Acquisitions - Recognized Identifiable Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Apr. 20, 2016	Mar. 31, 2016
Business Acquisition [Line Items]
Goodwill	$ 249,721		$ 218,224
Jaybird
Business Acquisition [Line Items]
Cash and cash equivalents		$ 255
Accounts receivable		272
Inventories		10,214
Other current assets		611
Property, plant, and equipment		1,165
Intangible assets		50,280
Other assets		27
Total identifiable assets acquired		62,824
Accounts payable		(10,513)
Accrued liabilities		(1,227)
Other current liabilities		(5,226)
Other long-term liabilities		(283)
Net identifiable assets acquired		45,575
Goodwill		26,667
Net assets acquired		$ 72,242

Business Acquisitions - Sched41

Business Acquisitions - Schedule of Intangible Assets Acquired (Details) - Jaybird - USD ($) $ in Thousands	Apr. 20, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Total intangible assets acquired	$ 50,280
In-process research & development (IPR&D)
Business Acquisition [Line Items]
Fair value of Indefinite-lived intangible assets	2,550
Developed technology
Business Acquisition [Line Items]
Fair value of finite-lived intangible assets	$ 18,450
Estimated Useful Life	4 years	5 years
Customer relationships
Business Acquisition [Line Items]
Fair value of finite-lived intangible assets	$ 19,900
Estimated Useful Life	8 years
Trade name
Business Acquisition [Line Items]
Fair value of finite-lived intangible assets	$ 9,380
Estimated Useful Life	6 years

Net Income Per Share - Computa

Net Income Per Share - Computation of Basic and Diluted Net Income per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Continuing operations	$ 97,465	$ 68,040	$ 166,451	$ 111,352
Discontinued operations	0	(2,954)	0	(20,732)
Net income	$ 97,465	$ 65,086	$ 166,451	$ 90,620
Shares used in net income (loss) per share computation:
Weighted average shares outstanding - basic (in shares)	161,977	162,669	162,070	163,521
Effect of potentially dilutive equivalent shares (in shares)	3,924	2,499	3,141	2,430
Weighted average shares outstanding - diluted (in shares)	165,901	165,168	165,211	165,951
Net income (loss) per share - basic:
Continuing operations (in dollars per share)	$ 0.60	$ 0.42	$ 1.03	$ 0.68
Discontinued operations (in dollars per share)	0	(0.02)	0	(0.13)
Net income per share - basic (in dollars per share)	0.60	0.40	1.03	0.55
Net income (loss) per share - diluted:
Continuing operations (in dollars per share)	0.59	0.41	1.01	0.67
Discontinued operations (in dollars per share)	0	(0.02)	0	(0.12)
Net income per share - diluted (in dollars per share)	$ 0.59	$ 0.39	$ 1.01	$ 0.55
Anti-dilutive equivalents shares excluded (in shares)	1,700	6,300	2,800	6,600

Employee Benefit Plans - Share

Employee Benefit Plans - Share-based Compensation Expenses and Related Tax Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Share-based compensation expense and related tax benefit
Total share-based compensation expense	$ 9,387	$ 6,462	$ 26,354	$ 19,291
Income tax benefit	(2,391)	(1,446)	(6,092)	(2,479)
Total share-based compensation expense, net of income tax	6,996	5,016	20,262	16,812
Cost of goods sold
Share-based compensation expense and related tax benefit
Total share-based compensation expense	617	464	1,930	1,648
Marketing and selling
Share-based compensation expense and related tax benefit
Total share-based compensation expense	4,006	2,484	10,687	6,545
Research and development
Share-based compensation expense and related tax benefit
Total share-based compensation expense	1,176	846	3,007	2,174
General and administrative
Share-based compensation expense and related tax benefit
Total share-based compensation expense	3,588	2,668	10,730	8,917
Restructuring
Share-based compensation expense and related tax benefit
Total share-based compensation expense	$ 0	$ 0	$ 0	$ 7

Employee Benefit Plans - Narra

Employee Benefit Plans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation
Share-based compensation expenses capitalized as inventory			$ 0.6	$ 0.5
Defined benefit plans
Net periodic benefit cost	$ 2.8	$ 2.8	$ 8.4	$ 8.6

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Income Tax Disclosure [Line Items]
Provision for income taxes	$ 1,647	$ 1,442	$ 10,297	$ 7,006
Effective income tax rates	1.70%	2.10%	5.80%	5.90%
Lapse of statute of limitations			$ 9,400	$ 8,400
Unrecognized tax benefits	$ 66,600		66,600		$ 69,900
Reduction in non-current income taxes payable	(55,573)		(55,573)		(59,734)
Increase in current income taxes payable	7,163		7,163		1,553
Accrued interest and penalties related to uncertain tax positions	3,500		3,500		3,600
Expected decrease in uncertain tax positions	12,100		12,100
China
Income Tax Disclosure [Line Items]
Discrete tax benefit due to preferential income tax rate reduction				$ 2,200
Non-current income tax payable
Income Tax Disclosure [Line Items]
Unrecognized tax benefits	55,600		55,600		59,700
Current income tax payable
Income Tax Disclosure [Line Items]
Unrecognized tax benefits	1,500		1,500		$ 100
Scenario, Adjustment
Income Tax Disclosure [Line Items]
Reduction in non-current income taxes payable	1,400		1,400
Increase in current income taxes payable	$ 1,400		$ 1,400

Balance Sheet Components - Com

Balance Sheet Components - Components of Certain Balance Sheet Asset Amounts (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Accounts receivable, net:
Accounts receivable	$ 528,029	$ 332,553
Accounts receivable, net	277,677	142,778
Inventories:
Raw materials	28,484	48,489
Finished goods	221,802	180,297
Inventory, net	250,286	228,786
Other current assets:
Income tax and value-added tax receivables	21,237	22,572
Prepaid expenses and other assets	22,102	12,916
Other current assets, total	43,339	35,488
Property, plant and equipment, net:
Property, plant and equipment at cost	373,097	371,212
Less: accumulated depreciation and amortization	(288,903)	(278,352)
Property, plant and equipment, net	84,194	92,860
Other assets:
Deferred tax assets	55,773	56,208
Trading investments for deferred compensation plan	14,724	14,836
Investments held in privately held companies	10,434	9,247
Other assets	4,797	6,525
Other assets, total	85,728	86,816
Allowance for doubtful accounts
Accounts receivable, net:
Valuation allowance for accounts receivable	(597)	(667)
Allowance for sales returns
Accounts receivable, net:
Valuation allowance for accounts receivable	(22,215)	(18,526)
Allowance for cooperative marketing arrangements
Accounts receivable, net:
Valuation allowance for accounts receivable	(41,006)	(28,157)
Allowance for customer incentive programs
Accounts receivable, net:
Valuation allowance for accounts receivable	(83,141)	(60,872)
Allowance for pricing programs
Accounts receivable, net:
Valuation allowance for accounts receivable	$ (103,393)	$ (81,553)

Balance Sheet Components - C47

Balance Sheet Components - Components of Certain Balance Sheet Liability Amounts (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Accrued and other current liabilities:
Accrued personnel expenses	$ 83,645	$ 46,025
Indirect customer incentive programs	51,224	28,721
Warranty accrual	13,692	11,880
Employee benefit plan obligation	1,899	1,285
Income taxes payable	7,163	1,553
Contingent consideration for business acquisition - current portion	1,688	0
Other current liabilities	88,652	84,300
Accrued and other current liabilities	247,963	173,764
Non-current liabilities:
Warranty accrual	8,429	8,500
Obligation for deferred compensation plan	14,724	14,836
Employee benefit plan obligation	50,843	53,909
Deferred rent	8,323	9,424
Deferred tax liability	1,665	1,665
Contingent consideration for business acquisition - non-current portion	6,387	0
Other non-current liabilities	1,338	1,201
Non-current liabilities	$ 91,709	$ 89,535

Fair Value Measurements - Fina

Fair Value Measurements - Financial Assets and Liabilities, Classified by Level (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading investments for deferred compensation plan	$ 14,724	$ 14,836
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	340,964	10,000
Trading investments for deferred compensation plan	14,724	14,836
Fair Value, Measurements, Recurring | Level 1 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading investments for deferred compensation plan	3,024	3,467
Fair Value, Measurements, Recurring | Level 1 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading investments for deferred compensation plan	11,700	11,369
Fair Value, Measurements, Recurring | Level 2 | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Currency exchange derivative assets	825	10
Currency exchange derivative liabilities	69	1,132
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related contingent consideration	$ 8,075	$ 0

Fair Value Measurements - Chang

Fair Value Measurements - Change in Fair Value of Contingent Consideration (Details) - Contingent Consideration - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of the period	$ 18,000	$ 0	$ 0	$ 0
Fair value of contingent consideration upon acquisition	0	0	18,000	0
Change in fair value of contingent consideration	9,925	0	9,925	0
End of the period	$ 8,075	$ 0	$ 8,075	$ 0

Fair Value Measurements - Narr

Fair Value Measurements - Narrative (Details) - USD ($)	Apr. 20, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2016	Dec. 28, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading investments for deferred compensation plan		$ 14,724,000		$ 14,724,000				$ 14,836,000
Impairments of long-lived assets		0	$ 0	0	$ 0
Cost method investments at cost		7,400,000		7,400,000				7,400,000
Lifesize | Preferred Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cost method investment									$ 5,600,000
Jaybird
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related contingent consideration	$ 18,000,000
Jaybird | Revenue Growth
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum earn-out	$ 45,000,000
Jaybird | Revenue Growth | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate for value measurement	16.00%
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading investments for deferred compensation plan		14,724,000		14,724,000				14,836,000
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related contingent consideration		8,075,000		8,075,000				$ 0
Fair Value, Measurements, Recurring | Jaybird | Revenue Growth
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related contingent consideration	$ 18,000,000	$ 8,100,000		$ 8,100,000
Scenario, Forecast | Jaybird | Revenue Growth
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Earn-out payments (up to)						$ 20,000,000	$ 25,000,000

Derivative Financial Instrume51

Derivative Financial Instruments - Narrative (Details) - Foreign Exchange Forward - USD ($) $ in Millions	9 Months Ended
	Dec. 31, 2016	Mar. 31, 2016
Designated as hedging instruments | Cash Flow Hedges
Derivative [Line Items]
Notional amount of derivatives	$ 55.7	$ 39.8
Cash flow hedge gain to be reclassified within twelve months	2.7
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount of derivatives	$ 86.6	$ 63.7

Derivative Financial Instrume52

Derivative Financial Instruments - Fair Values of Company Derivative Instruments (Details) - Designated as hedging instruments - Cash Flow Hedges - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Other Current Assets
Derivative Financial Instruments
Asset	$ 825	$ 10
Accrued and Other Current Liabilities
Derivative Financial Instruments
Liability	$ 0	$ 1,038

Derivative Financial Instrume53

Derivative Financial Instruments - Gains and Losses on Derivative Instruments (Details) - Designated as hedging instruments - Cash Flow Hedges - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Amounts of gains and losses on the derivative instruments
Amount of Gain (Loss) Deferred as a Component of Accumulated Other Comprehensive Loss After Reclassification to Costs of Goods Sold	$ 2,034	$ (17)	$ 4,458	$ (3,679)
Cost of goods sold
Amounts of gains and losses on the derivative instruments
Amount of Loss (Gain) Reclassified from Accumulated Other Comprehensive Loss to Costs of Goods Sold	$ (463)	$ 45	$ 432	$ (2,443)

Goodwill - Summary of Activity

Goodwill - Summary of Activity In Goodwill Balance (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Market capitalization	$ 4,000,000	$ 2,500,000
Goodwill
Balance at the beginning of the period	218,224
Business acquisitions	31,553
Currency impact	(56)
Balance at the end of the period	$ 249,721

Financing Arrangements (Details

Financing Arrangements (Details) - USD ($)	Dec. 31, 2016	Mar. 31, 2016
Financing Arrangements
Outstanding borrowings	$ 0	$ 0
Unsecured bank lines of credit
Financing Arrangements
Maximum borrowing capacity	43,200,000
Outstanding bank guarantees	$ 18,300,000

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details)	1 Months Ended	9 Months Ended	12 Months Ended
	Apr. 30, 2016USD ($)	Dec. 31, 2016USD ($)	Mar. 31, 2014	Dec. 28, 2015firm
Other Commitments [Line Items]
Warranty period			5 years
Civil penalty payment to settle an investigation	$ 7,500,000
Number of venture firms invested in Lifesize | firm				3
Parent guarantee for purchase obligation of third party contract manufacturer
Other Commitments [Line Items]
Maximum amount of the guarantees		$ 3,800,000
Guarantees outstanding		1,700,000
Indemnification agreement
Other Commitments [Line Items]
Amount accrued for indemnification provisions		$ 0
European Countries
Other Commitments [Line Items]
Warranty period		2 years
All Other Countries
Other Commitments [Line Items]
Warranty period		1 year

Commitments and Contingencies57

Commitments and Contingencies - Changes in Warranty Liability (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Changes in the warranty liability:
Beginning of the period	$ 21,612	$ 20,399	$ 20,380	$ 21,710
Assumed from business acquisition		0	1,963	0
Provision	4,521	2,023	10,861	5,815
Settlements	(3,550)	(2,763)	(10,430)	(8,008)
Currency impact	(462)	(153)	(653)	(11)
End of the period	$ 22,121	$ 19,506	$ 22,121	$ 19,506

Shareholders' Equity - Narrati

Shareholders' Equity - Narrative (Details)	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 31, 2014USD ($)	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2016SFr / shares	Dec. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2015SFr / shares
Stockholders' Equity Note [Abstract]
Authorized amount in buyback program	$ 250,000,000
Period to complete share repurchase program	3 years
Repurchase of shares (in shares) | shares		900,000	0	3,300,000		3,500,000
Repurchase of shares, value		$ 20,900,000		$ 63,764,000		$ 48,802,000
Cash dividend per share (per share) | (per share)		$ 0	$ 0	$ 0.57	SFr 0.56	$ 0.53	SFr 0.51
Payment of cash dividends				$ 93,093,000		$ 85,915,000

Shareholders' Equity - Compone

Shareholders' Equity - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss)
Beginning of the period			$ 759,948	$ 758,134
Other comprehensive income	$ (4,317)	$ (2,432)	(447)	(2,459)
End of the period	801,395	736,946	801,395	736,946
Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss)
Beginning of the period			(84,038)
Other comprehensive income			(7,714)
End of the period	(91,752)		(91,752)
Defined Benefit Plan
Accumulated Other Comprehensive Income (Loss)
Beginning of the period			(26,171)
Other comprehensive income			2,809
End of the period	(23,362)		(23,362)
Deferred Hedging Gains (Losses)
Accumulated Other Comprehensive Income (Loss)
Beginning of the period			(1,776)
Other comprehensive income			4,458
End of the period	2,682		2,682
Total
Accumulated Other Comprehensive Income (Loss)
Beginning of the period			(111,985)	(113,237)
End of the period	$ (112,432)	$ (115,696)	$ (112,432)	$ (115,696)

Segment Information - Net Sale

Segment Information - Net Sales by Product Family- Excluding Intercompany Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net sales	$ 666,707	$ 621,079	$ 1,710,875	$ 1,587,259
Mobile Speakers
Segment Reporting Information [Line Items]
Net sales	106,578	85,081	261,046	206,175
Audio-PC & Wearables
Segment Reporting Information [Line Items]
Net sales	67,225	57,300	186,058	149,341
Gaming
Segment Reporting Information [Line Items]
Net sales	107,181	77,706	242,874	189,000
Video Collaboration
Segment Reporting Information [Line Items]
Net sales	35,807	26,216	88,298	67,460
Home Control
Segment Reporting Information [Line Items]
Net sales	26,942	25,684	49,916	48,548
Pointing Devices
Segment Reporting Information [Line Items]
Net sales	142,166	139,711	382,249	381,364
Keyboards & Combos
Segment Reporting Information [Line Items]
Net sales	125,289	116,531	359,824	324,458
Tablet & Other Accessories
Segment Reporting Information [Line Items]
Net sales	24,852	35,873	59,351	73,222
PC Webcams
Segment Reporting Information [Line Items]
Net sales	30,503	29,648	80,072	74,689
Other
Segment Reporting Information [Line Items]
Net sales	164	817	1,187	1,961
Total net retail sales
Segment Reporting Information [Line Items]
Net sales	666,707	594,567	1,710,875	1,516,218
OEM
Segment Reporting Information [Line Items]
Net sales	$ 0	$ 26,512	$ 0	$ 71,041

Segment Information - Net Sa61

Segment Information - Net Sales and Long-Lived Assets by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Net sales to unaffiliated customers and long-lived assets by geographic region
Net sales	$ 666,707	$ 621,079	$ 1,710,875	$ 1,587,259
Long lived assets	84,194		84,194		$ 92,860
Americas | Operating Segments
Net sales to unaffiliated customers and long-lived assets by geographic region
Net sales	290,724	279,286	753,179	719,735
Long lived assets	37,959		37,959		40,221
EMEA | Operating Segments
Net sales to unaffiliated customers and long-lived assets by geographic region
Net sales	233,251	205,827	576,809	494,592
Long lived assets	3,358		3,358		3,194
Asia Pacific | Operating Segments
Net sales to unaffiliated customers and long-lived assets by geographic region
Net sales	142,732	$ 135,966	380,887	$ 372,932
Long lived assets	$ 42,877		$ 42,877		$ 49,445

Segment Information - Narrativ

Segment Information - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Segment Reporting Information [Line Items]
Long lived assets	$ 84,194		$ 84,194		$ 92,860
United States
Segment Reporting Information [Line Items]
Long lived assets	37,800		37,800		40,000
Switzerland
Segment Reporting Information [Line Items]
Long lived assets	1,800		1,800		1,700
China
Segment Reporting Information [Line Items]
Long lived assets	$ 36,500		$ 36,500		$ 44,500
Geographic Concentration | Consolidated net sales from continuing operations | Switzerland
Segment Reporting Information [Line Items]
Percentage of consolidated net sales	2.00%	2.00%	2.00%	2.00%

Restructuring (Details)

Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		21 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016
Restructuring reserve
Restructuring charges (credits), net	$ (33)			$ (666)	$ (44)	$ 14,018
Continuing Operations
Restructuring reserve
Accrual balance, beginning of the period	2,883	$ 4,282	$ 6,400		6,400
Restructuring charges (credits), net	(33)	74	(85)
Cash payments	(1,200)	(1,473)	(2,033)
Accrual balance, end of the period	1,650	2,883	4,282		1,650		$ 1,650
Continuing Operations | Termination Benefits
Restructuring reserve
Accrual balance, beginning of the period	2,883	4,282	6,275		6,275
Restructuring charges (credits), net	(33)	74	(85)
Cash payments	(1,200)	(1,473)	(1,908)
Accrual balance, end of the period	1,650	2,883	4,282		1,650		1,650
Continuing Operations | Lease Exit Costs
Restructuring reserve
Accrual balance, beginning of the period	0	0	125		125
Restructuring charges (credits), net	0	0	0
Cash payments	0	0	(125)
Accrual balance, end of the period	$ 0	$ 0	$ 0		$ 0		0
2016 Restructuring Plan
Restructuring related charges:
Cumulative restructuring costs incurred							25,500
2016 Restructuring Plan | Termination Benefits
Restructuring related charges:
Cumulative restructuring costs incurred							$ 24,400