Kemet (KEM) 10-Q 2 Nov 16 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Sep. 30, 2016	Oct. 31, 2016
Document and Entity Information
Entity Registrant Name	KEMET CORP
Entity Central Index Key	887,730
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		46,282,645
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Mar. 31, 2016
Current assets:
Cash and cash equivalents	$ 74,753	$ 65,004
Accounts receivable, net	88,089	93,168
Inventories, net	164,977	168,879
Prepaid expenses and other	30,990	25,496
Total current assets	358,809	352,547
Noncurrent Assets:
Property, plant and equipment, net of accumulated depreciation of $824,241 and $815,338 as of September 30, 2016 and March 31, 2016, respectively	221,490	241,839
Goodwill	40,294	40,294
Intangible assets, net	30,993	33,301
Investment in NEC TOKIN	15,174	20,334
Deferred income taxes	7,749	8,397
Other assets	2,466	3,068
Total assets	676,975	699,780
Current liabilities:
Current portion of long-term debt	0	2,000
Accounts payable	64,055	70,981
Accrued expenses	58,015	50,320
Income taxes payable	293	453
Total current liabilities	122,363	123,754
Liabilities, Noncurrent [Abstract]
Long-term debt, less current portion	386,098	385,833
Other non-current obligations	82,640	74,892
Deferred income taxes	2,994	2,820
Stockholders’ equity:
Preferred stock, par value $0.01, authorized 10,000 shares, none issued	0	0
Common stock, par value $0.01, authorized 175,000 shares, issued 46,508 shares at September 30, 2016 and March 31, 2016	465	465
Additional paid-in capital	445,662	452,821
Retained deficit	(316,843)	(299,510)
Accumulated other comprehensive income	(45,527)	(31,425)
Treasury stock, at cost (226 and 611 shares at September 30, 2016 and March 31, 2016, respectively)	(877)	(9,870)
Total stockholders’ equity	82,880	112,481
Total liabilities and stockholders’ equity	$ 676,975	$ 699,780

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Mar. 31, 2016
Property, Plant and Equipment, Net [Abstract]
Property and equipment, accumulated depreciation	$ 824,241	$ 815,338
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	10,000,000	10,000,000
Preferred stock, issued shares	0	0
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common stock, par value (in dollars per share)	$ 0.009998279866	$ 0.009998279866
Common stock, authorized shares	175,000,000	175,000,000
Common stock, issued shares	46,508,000	46,508,000
Treasury stock, shares	226,000	611,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues [Abstract]
Net sales	$ 187,308	$ 186,123	$ 372,243	$ 373,713
Operating costs and expenses:
Cost of sales	140,895	143,317	283,307	291,194
Selling, general and administrative expenses	25,972	22,948	51,886	53,378
Research and development	7,116	6,152	14,048	12,426
Restructuring charges	3,998	23	4,686	1,847
Write down of long-lived assets	6,193	0	6,193	0
Net (gain) loss on sales and disposals of assets	84	(304)	175	(362)
Total operating costs and expenses	184,258	172,136	360,295	358,483
Operating income (loss)	3,050	13,987	11,948	15,230
Non-operating (income) expense:
Interest income	(6)	(3)	(9)	(6)
Interest expense	9,910	9,811	19,833	19,824
Change in value of NEC TOKIN option	(1,600)	(2,200)	10,400	27,000
Other (income) expense, net	(905)	(2,091)	(3,299)	(1,175)
Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN	(4,349)	8,470	(14,977)	(30,413)
Income tax expense (benefit)	830	1,438	2,630	1,190
Income (loss) from continuing operations before equity income (loss) from NEC TOKIN	(5,179)	7,032	(17,607)	(31,603)
Equity income (loss) from NEC TOKIN	181	162	404	1,747
Net income (loss)	$ (4,998)	$ 7,194	$ (17,203)	$ (29,856)
Net income (loss) per basic share:
Net income (loss) per basic share (in usd per share)	$ (0.11)	$ 0.16	$ (0.37)	$ (0.65)
Net income (loss) per diluted share (in usd per share)	$ (0.11)	$ 0.14	$ (0.37)	$ (0.65)
Weighted-average shares outstanding:
Basic (in shares)	46,590	45,767	46,471	45,660
Diluted (in shares)	46,590	50,004	46,471	45,660

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (4,998)	$ 7,194	$ (17,203)	$ (29,856)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Foreign currency translation gains (losses)	(689)	(4,466)	(7,075)	1,399
Defined benefit pension plans, net of tax impact	164	245	327	412
Post-retirement plan adjustments	(43)	(39)	(85)	(79)
Equity interest in NEC TOKIN’s other comprehensive income (loss)	(179)	(3,674)	(5,563)	(4,606)
Foreign exchange contracts	(841)	(770)	(1,706)	(3,717)
Other comprehensive income (loss)	(1,588)	(8,704)	(14,102)	(6,591)
Total comprehensive income (loss)	$ (6,586)	$ (1,510)	$ (31,305)	$ (36,447)

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Cash Flows [Abstract]
Net income (loss)	$ (17,203)	$ (29,856)
Operating Activities:
Depreciation and amortization	18,876	19,182
Equity income (loss) from NEC TOKIN	(404)	(1,747)
Non-cash debt and financing costs	378	437
Stock-based compensation expense	2,332	2,607
Change in value of NEC TOKIN option	10,400	27,000
Net (gain) loss on sales and disposals of assets	175	(362)
Write down of long-lived assets	6,193	0
Pension and other post-retirement benefits	1,417	333
Change in deferred income taxes	1,165	52
Change in operating assets	1,721	(14,474)
Change in operating liabilities	(1,830)	(14,514)
Other	(177)	410
Net cash provided by (used in) operating activities	23,043	(10,932)
Investing activities:
Capital expenditures	(10,344)	(9,268)
Acquisitions, net of cash received	0	(2,892)
Proceeds from sale of assets	0	247
Net cash provided by (used in) investing activities	(10,344)	(11,913)
Financing activities:
Proceeds from revolving line of credit	0	8,000
Payments of revolving line of credit	0	(3,500)
Payments on long-term debt	(1,870)	(481)
Purchase of treasury stock	(628)	(575)
Net cash provided by (used in) financing activities	(2,498)	3,444
Net increase (decrease) in cash and cash equivalents	10,201	(19,401)
Effect of foreign currency fluctuations on cash	(452)	354
Cash and cash equivalents at beginning of fiscal period	65,004	56,362
Cash and cash equivalents at end of fiscal period	$ 74,753	$ 37,315

Basis of Financial Statement Pr

Basis of Financial Statement Presentation	6 Months Ended
	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Financial Statement Presentation	Basis of Financial Statement Presentation The condensed consolidated financial statements contained herein are unaudited and have been prepared from the books and records of KEMET Corporation and its subsidiaries (“KEMET” or the “Company”). In the opinion of management, the condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods. The condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q, and therefore, do not include all information and footnotes necessary for a complete presentation of financial position, results of operations, and cash flows in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”). Although the Company believes the disclosures are adequate to make the information presented not misleading, it is suggested that these condensed consolidated financial statements be read in conjunction with the audited financial statements and notes thereto included in the Company’s Form 10-K for the fiscal year ended March 31, 2016 (the “Company’s 2016 Annual Report”). The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. In consolidation, all significant intercompany amounts and transactions have been eliminated. Certain prior year amounts have been reclassified to conform to current year presentation. Net sales and operating results for the quarter and six-month periods ended September 30, 2016 are not necessarily indicative of the results to be expected for the full year. The Company’s significant accounting policies are presented in the Company’s 2016 Annual Report. Use of Estimates and Assumptions The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates, assumptions, and judgments based on historical data and other assumptions that management believes are reasonable. These estimates and assumptions affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements. In addition, they affect the reported amounts of revenues and expenses during the reporting period. The Company’s judgments are based on management’s assessment as to the effect certain estimates, assumptions, or future trends or events may have on the financial condition and results of operations reported in the unaudited condensed consolidated financial statements. It is important that readers of these unaudited financial statements understand that actual results could differ from these estimates, assumptions, and judgments. Recently Issued Accounting Pronouncements New accounting standards adopted/issued In August 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The update clarifies how cash receipts and cash payments in certain transactions are presented and classified in the statement of cash flows. The effective date of this update is for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The update requires retrospective application to all periods presented but may be applied prospectively if retrospective application is impracticable. The Company is currently evaluating the impact of the adoption of this principle on the Company’s consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation. This guidance changes several aspects of the accounting for share-based payment award transactions, including: (1) Accounting and Cash Flow Classification for Excess Tax Benefits and Deficiencies, (2) Forfeitures, and (3) Tax Withholding Requirements and Cash Flow Classification. This ASU is effective for fiscal years and interim periods within those years beginning after December 15, 2016. Early application is permitted, and KEMET adopted ASU No. 2016-09 as of April 1, 2016. The Company elected to discontinue estimating forfeitures that are expected to occur and recorded a cumulative effect adjustment to retained earnings of 130,000 as of April 1, 2016. There was no cumulative adjustment related to the excess tax benefits as the Company did not have an additional paid in capital pool of excess tax benefits. The adoption did not have a significant impact to the Company’s consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases. The ASU requires lessees to recognize a right-of-use asset and a lease liability for virtually all of their leases (other than short-term leases). The guidance is to be applied using a modified retrospective approach at the beginning of the earliest comparative period in the financial statements. This ASU is effective for fiscal years and interim periods within those years beginning after December 15, 2018. Early application is permitted. The Company is currently in the process of assessing the impact the adoption of this guidance will have on the Company’s consolidated financial statements. In July 2015, the FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory. The ASU requires an entity that uses first-in, first-out or average cost to measure its inventory at the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. ASU 2015-11 was effective for interim and annual reporting periods beginning April 1, 2016. The adoption of ASU 2015-11 did not materially impact the Company’s operating results and financial position. In April 2015, the FASB issued ASU No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. The ASU specifies that debt issuance costs related to a note shall be reported in the balance sheet as a direct reduction from the face amount of the note. In August 2015, the FASB issued ASU No. 2015-15, Interest - Imputation of Interest (Subtopic 835-30) - Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which clarifies the treatment of debt issuance costs associated with line-of-credit arrangements that were not specifically addressed in ASU 2015-03. ASU 2015-15 states that entities may elect to continue to treat debt issuance costs associated with lines of credit as an asset, consistent with current treatment. The Company adopted these ASUs in the first quarter of fiscal year 2017. The ASUs did not impact the Company’s results of operations or liquidity. The balance sheet as of March 31, 2016 has been adjusted to reflect retrospective application of the new accounting guidance as follows (amounts in thousands): As Previously Reported Retrospective Adjustment As Adjusted Other assets $ 5,832 $ (2,764 ) $ 3,068 Total assets 702,544 (2,764 ) 699,780 Long-term debt, less current portion 388,597 (2,764 ) 385,833 Total liabilities and stockholders’ equity 702,544 (2,764 ) 699,780 In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements-Going Concern. The new guidance requires management to assess if there is substantial doubt about an entity’s ability to continue as a going concern for each annual and interim period. If conditions or events give rise to substantial doubt, disclosures are required. ASU 2014-15 is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter; early application is permitted. This new guidance is not expected to have a material impact on the Company’s Consolidated Financial Statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which supersedes existing accounting standards for revenue recognition and creates a single framework. The new guidance requires either a retrospective or a modified retrospective approach at adoption. Early adoption is permitted, but not before Company’s fiscal year that begins on April 1, 2017 (the original effective date of the ASU). Additional updates to Topic 606 issued by the FASB in 2015 and 2016 include the following: • ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which defers the effective date of the new guidance such that the new provisions will now be required for fiscal years, and interim periods within those years, beginning after December 15, 2017 (ASU No. 2015-14 is effective for the Company’s fiscal year that begins on April 1, 2018 and interim periods within that fiscal year). • ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations, which clarifies the implementation guidance on principal versus agent considerations (reporting revenue gross versus net). • ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarifies the implementation guidance on identifying performance obligations and classifying licensing arrangements. • ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, which clarifies the implementation guidance in a number of other areas. The Company is currently in the process of assessing the impact the adoption of the new revenue standards will have on its consolidated financial statements and related disclosures, as well as the available transition methods. There are currently no other accounting standards that have been issued that will have a significant impact on the Company’s financial position, results of operations or cash flows upon adoption. Fair Value Measurement The Company utilizes three levels of inputs to measure the fair value of (a) nonfinancial assets and liabilities that are recognized or disclosed at fair value in the Company’s consolidated financial statements on a recurring basis (at least annually) and (b) all financial assets and liabilities. Fair value is defined 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 on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The first two inputs are considered observable and the last is considered unobservable. The levels of inputs are as follows: • Level 1—Quoted prices in active markets for identical assets or liabilities. • Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Assets and liabilities measured at fair value on a recurring basis as of September 30, 2016 and March 31, 2016 are as follows (amounts in thousands): Carrying Value September 30, Fair Value September 30, Fair Value Measurement Using Carrying Value March 31, Fair Value March 31, Fair Value Measurement Using 2016 2016 Level 1 Level 2 (2) Level 3 2016 2016 Level 1 Level 2 (2) Level 3 Assets (Liabilities): Money markets (1) $ 640 $ 640 $ 640 $ — $ — $ 738 $ 738 $ 738 $ — $ — Total debt (386,098 ) (384,352 ) (354,987 ) (29,365 ) — (387,833 ) (284,261 ) (254,713 ) (29,548 ) — NEC TOKIN option, net (3) (31,000 ) (31,000 ) — — (31,000 ) (20,600 ) (20,600 ) — — (20,600 ) ___________________ (1) Included in the line item “Cash and cash equivalents” on the Condensed Consolidated Balance Sheets. (2) The valuation approach used to calculate fair value was a discounted cash flow based on the borrowing rate for each respective debt facility. (3) See Note 6 , “Investment in NEC TOKIN,” for a description of the NEC TOKIN option. The value of the option depends on the enterprise value of NEC TOKIN Corporation and its forecasted EBITDA over the duration of the option. The option has been valued using option pricing methods in a Monte Carlo simulation. The table below summarizes NEC TOKIN option valuation activity using significant unobservable inputs (Level 3) (amounts in thousands): March 31, 2016 $ (20,600 ) Change in value of NEC TOKIN option (10,400 ) September 30, 2016 $ (31,000 ) Inventories Inventories are stated at the lower of cost or market. The components of inventories are as follows (amounts in thousands): September 30, 2016 March 31, 2016 Raw materials and supplies $ 75,211 $ 80,289 Work in process 50,081 46,631 Finished goods 55,698 58,060 180,990 184,980 Inventory reserves (16,013 ) (16,101 ) $ 164,977 $ 168,879 Warrant As of September 30, 2016 and March 31, 2016 , 8.4 million shares were subject to the warrant (which expires June 30, 2019) held by K Equity, LLC. Revenue Recognition The Company ships products to customers based upon firm orders and revenue is recognized when the sales process is complete. This occurs when products are shipped to the customer in accordance with the terms of an agreement of sale, there is a fixed or determinable selling price, title and risk of loss have been transferred and collectability is reasonably assured. Based on product availability, customer requirements and customer consent, the Company may ship products earlier than the initial planned ship date. Shipping and handling costs are included in cost of sales. A portion of sales is related to products designed to meet customer specific requirements. These products typically have stricter tolerances making them useful to the specific customer requesting the product and to customers with similar or less stringent requirements. The Company recognizes revenue when title to the products transfers to the customer. A portion of sales is made to distributors under agreements allowing certain rights of return and price protection on unsold merchandise held by distributors. The Company’s distributor policy includes inventory price protection and “ship-from-stock and debit” (“SFSD”) programs common in the industry. KEMET’s SFSD program provides authorized distributors with the flexibility to meet marketplace prices by allowing them, upon a pre-approved case-by-case basis, to adjust their purchased inventory cost to correspond with current market demand. Requests for SFSD adjustments are considered on an individual basis, require a pre-approved cost adjustment quote from their local KEMET sales representative and apply only to a specific customer, part, specified special price amount, specified quantity, and are only valid for a specific period of time. To estimate potential SFSD adjustments corresponding with current period sales, KEMET records a sales reserve based on historical SFSD credits, distributor inventory levels, and certain accounting assumptions, all of which are reviewed quarterly. Most of the Company’s distributors have the right to return to KEMET a certain portion of the purchased inventory, which, in general, does not exceed 6% of their purchases from the previous fiscal quarter. KEMET estimates future returns based on historical return patterns and records a corresponding allowance on the Condensed Consolidated Balance Sheets. The Company also offers volume based rebates on a case-by-case basis to certain customers in each of the Company’s sales channels. The establishment of sales allowances is recognized as a component of the line item “Net sales” on the Condensed Consolidated Statements of Operations, while the associated reserves are included in the line item “Accounts receivable, net” on the Condensed Consolidated Balance Sheets. Estimates used in determining sales allowances are subject to various factors. This includes, but is not limited to, changes in economic conditions, pricing changes, product demand, inventory levels in the supply chain, the effects of technological change, and other variables that might result in changes to the Company’s estimates. The Company provides a limited warranty to customers that the Company’s products meet certain specifications. The warranty period is generally limited to one year , and the Company’s liability under the warranty is generally limited to a replacement of the product or refund of the purchase price of the product. Warranty costs as a percentage of net sales were less than 1.0% for the quarters and six-month periods ended September 30, 2016 and 2015 . The Company recognizes warranty costs when they are both probable and reasonably estimable.

Debt

Debt	6 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Debt	Debt A summary of debt is as follows (amounts in thousands): September 30, March 31, 10.5% Senior Notes, net (1) $ 352,217 $ 353,952 Revolving line of credit 33,881 33,881 Total debt 386,098 387,833 Current maturities — (2,000 ) Total long-term debt $ 386,098 $ 385,833 (1) As noted in Note 1, “Basis of Financial Statements Presentation,” ASU No. 2015-03, Interest - Imputation of Interest, was adopted as of April 1, 2016. As such, debt issuance cost, if any, is included within the respective debt balance. Amounts shown are net of premium and debt issuance costs of $0.8 million and $1.0 million as of September 30, 2016 and March 31, 2016 , respectively which reduce the 10.5% Senior Notes balance. The line item “Interest expense” on the Condensed Consolidated Statements of Operations for the quarters and six-month periods ended September 30, 2016 and 2015 , consists of the following (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Contractual interest expense $ 9,688 $ 9,784 $ 19,398 $ 19,570 Capitalized interest (51 ) (236 ) (103 ) (276 ) Amortization of debt issuance costs 348 348 696 696 Amortization of debt (premium) discount (200 ) (185 ) (399 ) (366 ) Imputed interest on acquisition-related obligations 40 54 81 107 Interest expense on capital lease 85 46 160 93 Total interest expense $ 9,910 $ 9,811 $ 19,833 $ 19,824 Revolving Line of Credit On May 2, 2016, the Loan and Security Agreement dated September 30, 2010, as amended, by and among KEMET Electronics Corporation (“KEC”), KEMET Electronics Marketing (S) Pte. Ltd., KEMET Foil Manufacturing, LLC (“KEMET Foil”), KEMET Blue Powder Corporation (“KEMET Blue Powder”), The Forest Electric Company and the financial institutions party thereto (the “Loan and Security Agreement”), was amended and, as a result, the revolving credit facility increased to $65.0 million . The Company had the following activity for the six-month period ended September 30, 2016 and resulting balances under the revolving line of credit (amounts in thousands, excluding percentages): March 31, Six-Month Period Ended September 30, 2016 September 30, Outstanding Borrowings Additional Borrowings Repayments Outstanding Borrowings Rate (1) (2) Due Date U.S. Facility $ 19,881 $ — $ — $ 19,881 4.750 % December 19, 2019 Singapore Facility Singapore Borrowing 1 (3) 12,000 — — 12,000 3.375 % November 19, 2016 Singapore Borrowing 2 (3) 2,000 — — 2,000 3.375 % January 9, 2017 Total Facilities $ 33,881 $ — $ — $ 33,881 ______________________________________________________________________________ (1) For U.S. borrowings, Base Rate plus 1.50% , as defined in the Loan and Security Agreement. (2) For Singapore borrowings, London Interbank Offer Rate (“LIBOR”), plus a spread of 2.50% as of September 30, 2016 . (3) The Company has the intent and ability to extend the due date on the Singapore borrowings. As of September 30, 2016 , these were the only borrowings under the revolving line of credit, and the Company’s available borrowing capacity under the Loan and Security Agreement was $31.1 million . 10.5% Senior Notes On May 10, 2016, the Company repurchased and retired $2.0 million of its 10.5% Senior Notes due May 1, 2018 (the “ 10.5% Senior Notes”). As of September 30, 2016 and March 31, 2016 , the Company had outstanding $353.0 million and $355.0 million , respectively in aggregate principal amount of the Company’s 10.5% Senior Notes. The Company had interest payable related to the 10.5% Senior Notes included in the line item “Accrued expenses” on its Condensed Consolidated balance sheets of $15.4 million and $15.5 million as of September 30, 2016 and March 31, 2016 , respectively.

Impairment charges

Impairment charges	6 Months Ended
	Sep. 30, 2016
Property, Plant and Equipment [Abstract]
Impairment charges	Impairment charges In the quarter ended September 30, 2016 we recorded a write down of long-lived assets of $6.2 million due to the following two actions. On August 31, 2016, KEMET Electronics Corporation, a wholly-owned subsidiary of KEMET made the decision to shut-down operations of its wholly-owned subsidiary, KEMET Foil Manufacturing, LLC (“KFM”). Operations at KFM’s Knoxville, Tennessee plant ceased as of October 31, 2016. KFM supplied formed foil to the Company’s Film and Electrolytic Business Group (“Film and Electrolytic”), as well as to certain third party customers. The Company anticipates that Film and Electrolytic will achieve raw material cost savings by purchasing its formed foil from suppliers that have the advantage of lower utility costs. During the second fiscal quarter ending September 30, 2016, Film and Electrolytic recorded impairment charges totaling $4.1 million comprised of $3.0 million for the write down of property plant and equipment and $1.1 million for the write down of intangible assets. The impairment charges are recorded on the Condensed Consolidated Statements of Operations line item “Write down of long-lived assets”. In addition, the Company has accrued severance charges and restructuring costs described in Note 4 , “Restructuring Charges.” The Solid Capacitor Business Group (“Solid Capacitors”) initiated a plan to relocate its K-Salt operations from a leased facility equipment to its existing Matamoros, Mexico facility. Impairment charges of approximately $2.1 million are recorded on the Condensed Consolidated Statements of Operations line item “Write down of long-lived assets”. In addition, the Company has accrued severance charges described in Note 4 , “Restructuring Charges” and expects to incur equipment relocation costs of approximately $1.2 million in the third quarter of fiscal year 2017.

Restructuring Charges

Restructuring Charges	6 Months Ended
	Sep. 30, 2016
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges KEMET’s restructuring plans are focused on making the Company more competitive by reducing excess capacity, relocating production to lower cost locations and eliminating unnecessary costs throughout the Company. A summary of the expenses aggregated in the Condensed Consolidated Statements of Operations line item “Restructuring charges” in the quarters and six-month periods ended September 30, 2016 and 2015 , is as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Personnel reduction costs/(benefits) $ 1,432 $ (434 ) $ 2,079 $ 1,110 Relocation and exit costs 2,566 457 2,607 737 Restructuring charges $ 3,998 $ 23 $ 4,686 $ 1,847 Quarter Ended September 30, 2016 The Company incurred $4.0 million in restructuring charges in the quarter ended September 30, 2016 comprised of $1.4 million in personnel reduction costs and $2.6 million in manufacturing relocation and exit costs. The personnel reduction costs of $1.4 million consist of $0.4 million in headcount reductions related to the shut-down of operations for KFM in Knoxville, Tennessee , $0.4 million related to the consolidation of certain Solid Capacitor manufacturing in Matamoros, Mexico , $0.3 million in U.S. headcount reductions related to the relocation of global marketing functions to the Company’s Fort Lauderdale, Florida office , $0.2 million related to overhead reductions corresponding with the relocation of research and development (“R&D”) operations from Weymouth, England to Evora, Portugal, and $0.1 million in manufacturing headcount reductions related to the relocation of the K-Salt operations to the existing Matamoros, Mexico plant. The manufacturing relocation costs of $2.6 million primarily consists of $2.2 million related to contract termination costs related to the shut-down of operations for KFM , $0.3 million related to transfers of Film and Electrolytic production lines and R&D functions to lower cost regions , and $0.1 million related to the transfer of certain Tantalum production from Simpsonville, South Carolina to Victoria, Mexico . Six-Month Period Ended September 30, 2016 The Company incurred $4.7 million in restructuring charges in the six-month period ended September 30, 2016 comprised of $2.1 million in personnel reduction costs and $2.6 million in manufacturing relocation and exit costs. The personnel reduction costs of $2.1 million consist of $0.4 million in headcount reductions related to the shut-down of operations for KFM in Knoxville, Tennessee , $0.5 million related to the consolidation of certain Solid Capacitor manufacturing in Matamoros, Mexico , $0.3 million for overhead reductions in Sweden , $0.3 million in U.S. headcount reductions related to the relocation of global marketing functions to the Company’s Fort Lauderdale, Florida office , $0.2 million related to overhead reductions as we relocate the R&D operations from Weymouth, England to Evora, Portugal , $0.2 million related to headcount reductions in Europe (primarily Italy and Landsberg, Germany) corresponding with the relocation of certain production lines and laboratories to lower cost regions , and $0.1 million in manufacturing headcount reductions related to the relocation of the K-Salt operations to the existing Matamoros, Mexico plant. The manufacturing relocation costs of $2.6 million primarily consists of $2.2 million in related to contract termination costs related to the shut-down of operations for KFM , $0.3 million related to transfers of Film and Electrolytic production lines and R&D functions to lower cost regions , and $0.1 million related to the transfer of certain Tantalum production from Simpsonville, South Carolina to Victoria, Mexico . Quarter Ended September 30, 2015 The Company incurred $23 thousand in restructuring charges in the quarter ended September 30, 2015 including a credit to personnel reduction costs of $0.4 million and $0.5 million in manufacturing relocation costs. The credit to personnel reduction costs of $0.4 million is due primarily to a $1.2 million reversal of a severance accrual in Italy. The Company originally recorded the accrual in the third quarter of fiscal year 2015 corresponding with a plan to reduce headcount by 50 employees. Under the plan, 24 employees were terminated. However, due to unexpected workforce attrition combined with achieving other cost reduction goals, the Company decided not to complete the remaining headcount reduction. Consequently, the Company reversed the remaining accrual during the second quarter of fiscal year 2016. This was partially offset by the following expenses: $0.5 million for headcount reductions in Matamoros, Mexico related to the relocation of certain Solid Capacitor manufacturing from Matamoros, Mexico to Victoria, Mexico , and $0.2 million for headcount reductions related to the outsourcing of the Company’s information technology function and overhead reductions in North America and Europe . The Company also incurred $0.5 million of manufacturing relocation costs for transfers of Film and Electrolytic production lines to lower cost regions. Six-Month Period Ended September 30, 2015 The Company incurred $1.8 million in restructuring charges in the quarter ended September 30, 2015 comprised of $1.1 million of personnel reduction costs and $0.7 million in manufacturing relocation costs. The personnel reduction costs of $1.1 million consist of the following: $0.6 million related to a headcount reduction in Suzhou, China for the Film and Electrolytic production line transfer from Suzhou, China to Anting, China , $0.4 million for headcount reductions in Europe (primarily Landsberg, Germany) , $0.8 million for headcount reductions in Matamoros, Mexico related to the relocation of certain Solid Capacitor manufacturing from Matamoros, Mexico to Victoria, Mexico , and $0.4 million for headcount reductions related to the outsourcing of the Company’s information technology function and overhead reductions in North America and Europe . These personnel reduction costs were partially offset by a $1.2 million reversal of a severance accrual in Italy. The Company also incurred $0.7 million of manufacturing relocation costs for transfers of Film and Electrolytic production lines to lower cost regions. Reconciliation of restructuring liability A reconciliation of the beginning and ending liability balances for restructuring charges included in the line items “Accrued expenses” and “Other non-current obligations” on the Condensed Consolidated Balance Sheets for the quarters and six-month periods ended September 30, 2016 and 2015 are as follows (amounts in thousands): Quarter Ended September 30, 2016 Quarter Ended September 30, 2015 Personnel Reductions Manufacturing Relocations Personnel Reductions Manufacturing Relocations Beginning of period $ 1,079 $ — $ 6,555 $ — Costs charged to expense 1,432 2,566 (434 ) 457 Costs paid or settled (408 ) (584 ) (3,843 ) (457 ) Change in foreign exchange (2 ) — 2 — End of period $ 2,101 $ 1,982 $ 2,280 $ — Six-Month Period Ended September 30, 2016 Six-Month Period Ended September 30, 2015 Personnel Reductions Manufacturing Relocations Personnel Reductions Manufacturing Relocations Beginning of period $ 976 $ — $ 7,239 $ — Costs charged to expense 2,079 2,607 1,110 737 Costs paid or settled (931 ) (625 ) (6,283 ) (737 ) Change in foreign exchange (23 ) — 214 — End of period $ 2,101 $ 1,982 $ 2,280 $ —

Comprehensive Income (Loss) and

Comprehensive Income (Loss) and Accumulated Other Comprehensive Income	6 Months Ended
	Sep. 30, 2016
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Comprehensive Income (Loss) and Accumulated Other Comprehensive Income	Comprehensive Income (Loss) and Accumulated Other Comprehensive Income Changes in Accumulated Other Comprehensive Income (Loss) (“AOCI”) for the quarters ended September 30, 2016 and 2015 include the following components (amounts in thousands): Foreign Currency Translation (1) Post-Retirement Defined Benefit Pension Plans, Net of Tax (2) Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss) Foreign Exchange Contracts Net Accumulated Other Comprehensive Income (Loss) Balance at June 30, 2016 $ (16,658 ) $ 1,072 $ (14,998 ) $ (12,123 ) $ (1,232 ) $ (43,939 ) Other comprehensive income (loss) before reclassifications (689 ) — — (179 ) (1,981 ) (2,849 ) Amounts reclassified out of AOCI — (43 ) 164 — 1,140 1,261 Other comprehensive income (loss) (689 ) (43 ) 164 (179 ) (841 ) (1,588 ) Balance at September 30, 2016 $ (17,347 ) $ 1,029 $ (14,834 ) $ (12,302 ) $ (2,073 ) $ (45,527 ) Foreign Currency Translation Post-Retirement Defined Benefit Pension Plans, Net of Tax (2) Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss) Foreign Exchange Contracts Net Accumulated Other Comprehensive Income (Loss) Balance at June 30, 2015 $ (6,267 ) $ 1,119 $ (20,196 ) $ 605 $ (1,944 ) $ (26,683 ) Other comprehensive income (loss) before reclassifications (4,466 ) — — (3,674 ) (1,742 ) (9,882 ) Amounts reclassified out of AOCI — (39 ) 245 — 972 1,178 Other comprehensive income (loss) (4,466 ) (39 ) 245 (3,674 ) (770 ) (8,704 ) Balance at September 30, 2015 $ (10,733 ) $ 1,080 $ (19,951 ) $ (3,069 ) $ (2,714 ) $ (35,387 ) Changes in AOCI for the six-month periods ended September 30, 2016 and 2015 include the following components (amounts in thousands): Foreign Currency Translation (1) Post-Retirement Defined Benefit Pension Plans, Net of Tax (2) Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss) Foreign Exchange Contracts Net Accumulated Other Comprehensive Income (Loss) Balance at March 31, 2016 $ (10,272 ) $ 1,114 $ (15,161 ) $ (6,739 ) $ (367 ) $ (31,425 ) Other comprehensive income (loss) before reclassifications (7,075 ) — — (5,563 ) (4,599 ) (17,237 ) Amounts reclassified out of AOCI — (85 ) 327 — 2,893 3,135 Other comprehensive income (loss) (7,075 ) (85 ) 327 (5,563 ) (1,706 ) (14,102 ) Balance at September 30, 2016 $ (17,347 ) $ 1,029 $ (14,834 ) $ (12,302 ) $ (2,073 ) $ (45,527 ) Foreign Currency Translation Post-Retirement Defined Benefit Pension Plans, Net of Tax (2) Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss) Foreign Exchange Contracts Net Accumulated Other Comprehensive Income (Loss) Balance at March 31, 2015 $ (12,132 ) $ 1,159 $ (20,363 ) $ 1,537 $ 1,003 $ (28,796 ) Other comprehensive income (loss) before reclassifications 1,399 — — (4,606 ) (5,193 ) (8,400 ) Amounts reclassified out of AOCI — (79 ) 412 — 1,476 1,809 Other comprehensive income (loss) 1,399 (79 ) 412 (4,606 ) (3,717 ) (6,591 ) Balance at September 30, 2015 $ (10,733 ) $ 1,080 $ (19,951 ) $ (3,069 ) $ (2,714 ) $ (35,387 ) (1) Due primarily to the Company’s valuation allowance on deferred tax assets, there were no significant deferred tax effects associated with the cumulative currency translation gains and losses during the quarter and six-month periods ended September 30, 2016 . (2) Ending balance is net of tax of $2.0 million and $2.2 million as of September 30, 2016 and September 30, 2015 , respectively.

Investment in NEC TOKIN

Investment in NEC TOKIN	6 Months Ended
	Sep. 30, 2016
Equity Method Investments and Joint Ventures [Abstract]
Investment in NEC TOKIN	Investment in NEC TOKIN On March 12, 2012, KEC, a wholly owned subsidiary of the Company, entered into a Stock Purchase Agreement (the “Stock Purchase Agreement”) with NEC TOKIN Corporation (“NEC TOKIN”), a manufacturer of tantalum capacitors, electro-magnetic, electro-mechanical and access devices, to acquire 51% of the common stock of NEC TOKIN (which represented a 34% economic interest, as calculated based on the number of common shares held by KEC, directly and indirectly, in proportion to the aggregate number of outstanding common and convertible preferred shares of NEC TOKIN as of such date) (the “Initial Purchase”) from NEC Corporation (“NEC”) of Japan. The transaction closed on February 1, 2013, at which time KEC paid a purchase price of $50.0 million for new shares of common stock of NEC TOKIN (the “Initial Closing”). The Company accounts for its investment in NEC TOKIN using the equity method for a non-consolidated variable interest entity since KEC does not have the power to direct significant activities of NEC TOKIN. The Company believes that the NEC TOKIN convertible preferred stock represents in-substance common stock of NEC TOKIN and, as a result, its method of calculating KEC’s economic basis in NEC TOKIN is the appropriate basis on which to recognize its share of the earnings or loss of NEC TOKIN. In connection with KEC’s execution of the Stock Purchase Agreement, KEC entered into a Stockholders’ Agreement (the “Stockholders’ Agreement”) with NEC TOKIN and NEC, which provides for restrictions on transfers of NEC TOKIN’s capital stock, certain tag-along and first refusal rights on transfer, restrictions on NEC’s ability to convert the preferred stock of NEC TOKIN held by it, certain management services to be provided to NEC TOKIN by KEC (or an affiliate of KEC) and certain board representation rights. KEC holds four of seven NEC TOKIN director positions. However, NEC has significant board rights. Concurrent with execution of the Stock Purchase Agreement and the Stockholders’ Agreement, KEC entered into an Option Agreement (the “Option Agreement”) with NEC, which was amended on August 29, 2014, whereby KEC had the right to purchase additional shares of NEC TOKIN common stock from NEC TOKIN for a purchase price of $50.0 million resulting in an economic interest of approximately 49% while maintaining ownership of 51% of NEC TOKIN’s common stock (the “First Call Option”) by providing notice of the First Call Option between the Initial Closing and April 30, 2015. Upon providing such First Call Option notice, but not before April 1, 2015, KEC could also have exercised a second option to purchase all outstanding capital stock of NEC TOKIN from its stockholders, primarily NEC, for a purchase price based on the greater of six times LTM EBITDA (as defined in the Option Agreement) less the previous payments and certain other adjustments, or the outstanding amount of NEC TOKIN’s debt obligation to NEC (the “Second Call Option”) by providing notice of the Second Call Option by May 31, 2018. The First and Second Call Options expired on April 30, 2015 without being exercised. Through May 31, 2018, NEC may require KEC to purchase all outstanding capital stock of NEC TOKIN from its stockholders, primarily NEC (the “Put Option”), provided that KEC’s payment of the Put Option price is permitted under the 10.5% Senior Notes and Loan and Security Agreement. However, in the event that KEC issues new debt securities principally to refinance its outstanding 10.5% Senior Notes due 2018 and its currently outstanding credit agreement, including amounts to pay related fees and expenses and to use for general corporate purposes (“Refinancing Notes”), prior to NEC’s delivery of its notification of exercise of the Put Option, then the earliest date NEC may exercise the Put Option is automatically extended to the day immediately following the final scheduled maturity date of such Refinancing Notes, or in the event such Refinancing Notes are redeemed in full prior to such final scheduled maturity date, then on the day immediately following the date of such full redemption, but in any event beginning no later than November 1, 2019. If not previously exercised, the Put Option will expire on October 31, 2023. The purchase price for the Put Option will be based on the greater of six times LTM EBITDA less previous payments and certain other adjustments, or the outstanding amount of NEC TOKIN’s debt obligation to NEC as of the date the Put Option is exercised. The purchase price for the Put Option is reduced by the amount of NEC TOKIN’s debt obligation to NEC which KEC will assume. The determination of the purchase price could be modified in the event there is a disagreement between NEC and KEC under the Stockholders’ Agreement. The Company has marked the option to fair value and in the quarter and six-month periods ended September 30, 2016 recognized a $1.6 million gain and a $10.4 million loss, respectively, which was included on the line item “Change in value of the NEC TOKIN option” in the Condensed Consolidated Statement of Operations. The line item “Other non-current obligations” on the Condensed Consolidated Balance Sheets includes $31.0 million and $20.6 million as of September 30, 2016 and March 31, 2016 , respectively, related to the respective fair value of the Put Option. KEC’s total investment in NEC TOKIN including the net call derivative described above on February 1, 2013, the closing date of the acquisition, was $54.5 million which includes $50.0 million cash consideration plus approximately $4.5 million in transaction expenses (fees for legal, accounting, due diligence, investment banking and various other services necessary to complete the transactions). The Company has made an allocation of the aggregate purchase price, which was based upon estimates that the Company believes are reasonable. Summarized financial information for NEC TOKIN follows (amounts in thousands): September 30, March 31, Current assets $ 249,818 $ 240,427 Non-current assets 258,333 260,614 Current liabilities 171,193 179,360 Non-current liabilities 368,011 335,500 Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Sales $ 126,589 $ 117,358 $ 247,099 $ 232,092 Gross profit 27,055 25,055 53,601 49,723 Net income (loss) 2,012 2,007 4,362 7,261 A reconciliation between NEC TOKIN’s net income (loss) and KEC’s equity investment income (loss) follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 NEC TOKIN net income (loss) $ 2,012 $ 2,007 4,362 7,261 KEC’s economic interest % 34 % 34 % 34 % 34 % Equity income (loss) from NEC TOKIN before adjustments 684 682 1,483 2,469 Adjustments: Amortization and depreciation (581 ) (488 ) (1,125 ) (624 ) Inventory profit elimination 78 (32 ) 46 (98 ) Equity income (loss) from NEC TOKIN $ 181 $ 162 $ 404 $ 1,747 A reconciliation between NEC TOKIN’s net assets and KEC’s investment in NEC TOKIN follows (amounts in thousands): September 30, March 31, Investment in NEC TOKIN $ 15,174 $ 20,334 Purchase price accounting basis adjustments: Property, plant and equipment (1) 3,565 3,365 Technology (1) (10,413 ) (10,134 ) Long-term debt (1) (1,684 ) (1,975 ) Goodwill (8,377 ) (7,555 ) Indemnity asset for legal investigation (8,500 ) (8,500 ) Inventory profit elimination (2) 326 371 Other (650 ) (604 ) KEC’s 34% economic interest in NEC TOKIN’s net assets $ (10,559 ) $ (4,698 ) (1) Amortized over the estimated lives. (2) Adjusted each period for any activity. As of September 30, 2016 , KEC’s maximum loss exposure as a result of its investments in NEC TOKIN is limited to the aggregate of the carrying value of the investment, any accounts receivable balance due from NEC TOKIN and obligations in the Put Option. Summarized transactions between KEC and NEC TOKIN are as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 KEC’s sales to NEC TOKIN $ 5,135 $ 4,474 $ 8,282 $ 9,330 NEC TOKIN’s sales to KEMET 1,889 2,112 3,761 3,590 September 30, March 31, Accounts receivable $ 3,708 $ 5,220 Accounts payable 792 1,019 Management service agreement receivable (1) 649 748 (1) In accordance with the Stockholders’ Agreement, KEC entered into a management services agreement with NEC TOKIN to provide services for which KEC is being reimbursed. Beginning in March 2014, NEC TOKIN and certain of its subsidiaries received inquiries, requests for information and other communications from government authorities in China, the United States, the European Commission, Japan, South Korea Taiwan, Singapore and Brazil concerning alleged anti-competitive activities within the capacitor industry. On September 2, 2015, the United States Department of Justice announced a plea agreement with NEC TOKIN in which NEC TOKIN agreed to plead guilty to a one-count felony charge of unreasonable restraint of interstate and foreign trade and commerce in violation of Section 1 of the Sherman Act, and to pay a criminal fine of $13.8 million . The plea agreement was approved by the United States District Court, Northern District of California, on January 21, 2016. The fine is payable over five years in six installments of $2.3 million each, plus accrued interest. The first payment was made in February 2016 and the next payment is due in February 2017. On December 9, 2015, the Taiwan Fair Trade Commission (“TFTC”) publicly announced that NEC TOKIN would be fined 1,218.2 million New Taiwan dollars (“NTD”) (approximately U.S. $38.8 million ) for violations of the Taiwan Fair Trade Act. Subsequently, the TFTC has reduced the fine to NTD609.1 million (approximately U.S. $19.4 million ). In February 2016, NEC TOKIN commenced an administrative suit in Taiwan, challenging the validity of the amount of the fine. On March 29, 2016, the Japan Fair Trade Commission published an order by which NEC TOKIN was fined ¥ 127.2 million (approximately U.S. $1.3 million ) for violation of the Japanese Antimonopoly Act. Payment of the fine was made on October 31, 2016. On July 26, 2016, Brazil’s Administrative Council for Economic Defense approved a cease and desist agreement with NEC TOKIN in which NEC TOKIN made a financial contribution of Brazilian real 601 thousand (approximately U.S. $0.2 million ) to Brazil’s Fund for Defense of Diffuse Rights. On May 2, 2016, NEC TOKIN reached a preliminary settlement, followed by definitive settlement agreements on July 15, 2016 which are subject to court approval, in two antitrust suits filed with the United States District Court, Northern District of California as In re: Capacitors Antitrust Litigation, No. 3:14-cv-03264-JD (the “Class Action Suits”). Pursuant to the terms of the settlement agreements, in consideration of the release of NEC TOKIN and its subsidiaries (including NEC TOKIN America, Inc.) from claims asserted in the Class Action Suits, NEC TOKIN will pay an aggregate $37.3 million to a settlement class of direct purchasers of capacitors and a settlement class of indirect purchasers of capacitors. Each of the respective class payments is payable in five installments, the first of which became due on July 29, 2016, the next three of which are due each year thereafter on the anniversary of the initial payment, and the final payment is due by December 31, 2019. NEC TOKIN has paid the initial installment payments into the two plaintiff classes’ respective escrow accounts. The remaining governmental investigations are continuing at various stages. As of September 30, 2016 , NEC TOKIN’s accrual for antitrust and civil litigation claims totaled $72.7 million . This amount includes the best estimate of losses which may result from the ongoing antitrust investigations, civil litigation and claims. However, the actual outcomes could differ from what has been accrued. Pursuant to the Stock Purchase Agreement, NEC is required to indemnify NEC TOKIN and/or KEC for any breaches by NEC TOKIN or NEC of certain representations, warranties and covenants in the Stock Purchase Agreement. NEC’s aggregate liability for indemnification claims is limited to $25.0 million . Accordingly, KEMET, under equity method accounting, has established an indemnity asset in the amount of $8.5 million (based upon our 34% economic interest in NEC TOKIN). However, pursuant to the Stock Purchase Agreement, claims arising out of fraud or criminal conduct are not limited by the $25.0 million indemnification cap, and for such claims the claimant retains all remedies available in equity or at law.

Segment and Geographic Informat

Segment and Geographic Information	6 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Segment and Geographic Information	Segment and Geographic Information The Company is organized into two business groups: Solid Capacitors and Film and Electrolytic. The business groups are responsible for their respective manufacturing sites as well as their respective research and development efforts. The Company does not allocate indirect Selling, general and administrative (“SG&A”) or shared Research and development (“R&D”) expenses to the business groups. Solid Capacitors Operating in nine manufacturing sites in the United States, Mexico and China, Solid Capacitors primarily produces tantalum, aluminum polymer, and ceramic capacitors which are sold globally. Solid Capacitors also produces tantalum powder used in the production of tantalum capacitors and has a product innovation center in the United States. Film and Electrolytic Operating in ten manufacturing sites throughout Europe, Asia, and the United States, Film and Electrolytic primarily produces film, paper, and electrolytic capacitors which are sold globally. Film and Electrolytic also manufactures etched foils utilized as a core component in the manufacture of electrolytic capacitors. In addition, this business group has product innovation centers in the United Kingdom, Italy, Germany and Sweden. The following table reflects each business group’s net sales, operating income (loss), depreciation and amortization expenses and sales by region for the quarters and six-month periods ended September 30, 2016 and 2015 (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Net sales: Solid Capacitors $ 142,641 $ 141,284 $ 284,585 $ 280,961 Film and Electrolytic 44,667 44,839 87,658 92,752 $ 187,308 $ 186,123 $ 372,243 $ 373,713 Operating income (loss) (1) (2): Solid Capacitors $ 35,410 $ 33,979 $ 70,489 $ 64,012 Film and Electrolytic (7,096 ) 2,217 (8,563 ) 2,929 Corporate (25,264 ) (22,209 ) (49,978 ) (51,711 ) $ 3,050 $ 13,987 $ 11,948 $ 15,230 Depreciation and amortization expense: Solid Capacitors $ 5,147 $ 5,178 $ 10,565 $ 10,934 Film and Electrolytic 2,836 2,928 5,551 5,870 Corporate 1,457 1,159 2,760 2,378 $ 9,440 $ 9,265 $ 18,876 $ 19,182 __________________ (1) Restructuring charges included in Operating income (loss) are as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Restructuring charges: Solid Capacitors $ 558 $ 570 $ 694 $ 802 Film and Electrolytic 3,115 (749 ) 3,664 537 Corporate 325 202 328 508 $ 3,998 $ 23 $ 4,686 $ 1,847 (2) Write down of long-lived assets included in Operating income (loss) are as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Write down of Long-lived Assets Solid Capacitors $ 2,076 $ — $ 2,076 $ — Film and Electrolytic 4,117 — 4,117 — Corporate — — — — $ 6,193 $ — $ 6,193 $ — ___________________ Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Sales by region: North and South America (“Americas”) $ 56,781 $ 58,080 $ 111,882 $ 114,114 Europe, Middle East, Africa (“EMEA”) 60,047 59,458 120,533 121,015 Asia and Pacific Rim (“APAC”) 70,480 68,585 139,828 138,584 $ 187,308 $ 186,123 $ 372,243 $ 373,713

Defined Benefit Pension and Oth

Defined Benefit Pension and Other Postretirement Benefit Plans	6 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	Defined Benefit Pension and Other Postretirement Benefit Plans The Company sponsors six defined benefit pension plans in Europe, one plan in Singapore and two plans in Mexico. In addition, the Company sponsors a post-retirement plan in the United States. Costs recognized for benefit plans are recorded using estimated amounts which may change as actual costs for the fiscal year are determined. The components of net periodic benefit (income) costs relating to the Company’s pension and other postretirement benefit plans are as follows for the quarters ended September 30, 2016 and 2015 (amounts in thousands): Pension Post-retirement Benefit Plan Quarters Ended September 30, Quarters Ended September 30, 2016 2015 2016 2015 Net service cost $ 347 $ 404 $ — $ — Interest cost 358 338 4 6 Expected return on net assets (94 ) (105 ) — — Amortization: Actuarial (gain) loss 115 197 (43 ) (39 ) Prior service cost 21 15 — — Total net periodic benefit (income) costs $ 747 $ 849 $ (39 ) $ (33 ) The components of net periodic benefit (income) costs relating to the Company’s pension and other postretirement benefit plans are as follows for the six-month periods ended September 30, 2016 and 2015 (amounts in thousands): Pension Post-retirement Benefit Plan Six-Month Periods Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Net service cost $ 693 $ 1,121 $ — $ — Interest cost 717 675 8 12 Expected return on net assets (188 ) (210 ) — — Amortization: Actuarial (gain) loss 230 394 (85 ) (79 ) Prior service cost 42 29 — — Total net periodic benefit (income) costs $ 1,494 $ 2,009 $ (77 ) $ (67 ) In fiscal year 2017 , the Company expects to contribute up to $1.7 million to the pension plans, $0.5 million of which has been contributed as of September 30, 2016 . For the postretirement benefit plan, the Company’s policy is to pay benefits as costs are incurred.

Stock-based Compensation

Stock-based Compensation	6 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based Compensation	Stock-based Compensation As of September 30, 2016 , the 2014 Amendment and Restatement of the KEMET Corporation 2011 Omnibus Equity Incentive Plan (the “2011 Incentive Plan”), approved by the Company’s stockholders in 2014, is the only plan the Company has to issue equity based awards to executives and key employees. Upon adoption of the 2011 Incentive Plan, no further awards were permitted to be granted under the Company’s prior plans, including the 1992 Key Employee Stock Option Plan, the 1995 Executive Stock Option Plan, and the 2004 Long-Term Equity Incentive Plan (collectively, the “Prior Plans”). The 2011 Incentive Plan authorized the grant of up to 7.4 million shares of the Company’s Common Stock, comprised of 6.6 million shares under the 2011 Incentive Plan and 0.8 million shares remaining from the Prior Plans and authorizes the Company to provide equity-based compensation in the form of: • stock options, including incentive stock options, entitling the optionee to favorable tax treatment under Section 422 of the Code; • stock appreciation rights; • restricted stock and restricted stock units (“RSUs”); • other share-based awards; and, • performance awards. Options issued under these plans vest within one to three years and expire ten years from the grant date. The Company grants RSUs to members of the Board of Directors, the Chief Executive Officer and key management. Once vested and settled, RSUs are converted into restricted stock. For members of the Board of Directors and senior personnel, such restricted stock cannot be sold until 90 days after termination of service with the Company, or until the individual achieves the targeted ownership under the Company’s stock ownership guidelines, and only to the extent that such ownership level exceeds the target. Compensation expense is recognized over the respective vesting periods. Historically, the Board of Directors of the Company has approved annual Long Term Incentive Plans (“LTIP”) which cover two year periods and are primarily based upon the achievement of an Adjusted EBITDA range for the two-year period. At the time of the award, the individual plans entitle the participants to receive cash or RSUs, or a combination of both as determined by the Company’s Board of Directors. The 2013/2014 LTIP, 2014/2015 LTIP, 2015/2016 LTIP, 2016/2017 LTIP, and 2017/2018 LTIP also awarded RSUs which vest over the course of three years from the anniversary of the establishment of the plan and are not subject to a performance metric. The Company assesses the likelihood of meeting the Adjusted EBITDA financial metric on a quarterly basis and adjusts compensation expense to match expectations. Any related liability is reflected in the line item “Accrued expenses” on the Condensed Consolidated Balance Sheets and any restricted stock unit commitment is reflected in the line item “Additional paid-in capital” on the Condensed Consolidated Balance Sheets. On May 18, 2016, the Company granted RSUs under the 2017/2018 LTIP with a grant date fair value of $2.46 that vests as follows (amounts in thousands): Shares May 18, 2017 202 May 18, 2018 202 May 18, 2019 209 Total shares granted 613 The following is the vesting schedule of RSUs under each respective LTIP, which vested during the six-month period ended September 30, 2016 (shares in thousands): 2016/2017 2015/2016 2014/2015 Time-based award vested 187 111 130 Performance-based award vested — 103 73 Restricted stock activity, excluding the LTIP activity discussed above, for the six-month period ended September 30, 2016 is as follows (amounts in thousands except fair value): Shares Weighted- Non-vested restricted stock at March 31, 2016 1,430 $ 3.51 Granted 70 3.00 Vested (103 ) 2.22 Forfeited (13 ) 3.21 Non-vested restricted stock at September 30, 2016 1,384 $ 3.59 The compensation expense associated with stock-based compensation for the quarters ended September 30, 2016 and 2015 is recorded on the Condensed Consolidated Statements of Operations as follows (amounts in thousands): Quarter Ended September 30, 2016 Quarter Ended September 30, 2015 Stock Options Restricted Stock LTIPs Stock Options Restricted Stock LTIPs Cost of sales $ 7 $ 98 $ 196 $ 28 $ 163 $ 268 Selling, general and administrative expenses 7 343 404 26 350 433 Research and development — 6 43 1 5 54 Total $ 14 $ 447 $ 643 $ 55 $ 518 $ 755 The compensation expense associated with stock-based compensation for the six-month periods ended September 30, 2016 and 2015 is recorded on the Condensed Consolidated Statements of Operations as follows (amounts in thousands): Six-Month Period Ended September 30, 2016 Six-Month Period Ended September 30, 2015 Stock Options Restricted Stock LTIPs Stock Options Restricted Stock LTIPs Cost of sales $ 18 $ 288 $ 379 $ 61 $ 315 $ 496 Selling, general and administrative expenses 17 690 831 68 693 891 Research and development 1 11 97 3 11 69 Total $ 36 $ 989 $ 1,307 $ 132 $ 1,019 $ 1,456 In the “Operating activities” section of the Condensed Consolidated Statements of Cash Flows, stock-based compensation expense was treated as an adjustment to Net income (loss) for the quarters and six-month periods ended September 30, 2016 , and 2015 . No stock options were exercised in the six-month periods ended September 30, 2016 and September 30, 2015 .

Income Taxes

Income Taxes	6 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes During the quarter ended September 30, 2016 , the Company recognized $0.8 million of income tax expense related to foreign operations. During the six-month period ended September 30, 2016 , the Company recognized $2.6 million of income tax expense related to foreign operations. During the quarter ended September 30, 2015 , the Company recognized $1.4 million of income tax expense, comprised of $1.3 million from foreign operations and $0.1 million from state income tax expense. During the six-month period ended September 30, 2015 , the Company recognized $1.2 million of income tax expense, comprised of $1.6 million from foreign operations, $0.6 million of income tax benefit due to the reduction in the U.S. valuation allowance associated with the acquisition of IntelliData, Inc. (“IntelliData”), and $0.2 million of state income tax expense. There was no U.S. federal income tax benefit from net operating losses for the quarter and six-month periods ended September 30, 2016 and 2015 due to a valuation allowance recorded on deferred tax assets.

Basic and Diluted Net Income (L

Basic and Diluted Net Income (Loss) Per Common Share	6 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Basic and Diluted Net Income (Loss) Per Common Share	Basic and Diluted Net Income (Loss) Per Common Share The following table presents basic earnings per share (“EPS”) and diluted EPS (amounts in thousands, except per share data): Quarters Ended September 30, Six-Month Periods Ended 2016 2015 2016 2015 Numerator: Net income (loss) $ (4,998 ) $ 7,194 $ (17,203 ) $ (29,856 ) Denominator: Weighted-average shares outstanding: Basic 46,590 45,767 46,471 45,660 Assumed conversion of employee stock grants — 217 — — Assumed conversion of warrants — 4,020 — — Diluted 46,590 50,004 46,471 45,660 Net income (loss) per basic share $ (0.11 ) $ 0.16 $ (0.37 ) $ (0.65 ) Net income (loss) per diluted share $ (0.11 ) $ 0.14 $ (0.37 ) $ (0.65 ) Common stock equivalents that could potentially dilute net income (loss) per basic share in the future, but were not included in the computation of diluted earnings per share because the impact would have been anti-dilutive, are as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Assumed conversion of employee stock grants 2,596 3,942 2,322 3,507 Assumed conversion of warrants 5,771 — 5,380 5,305

Derivatives

Derivatives	6 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives In fiscal year 2015, the Company began using certain derivative instruments (i.e., foreign exchange contracts) to reduce exposure to the volatility of foreign currencies impacting revenues and the costs of its products. Certain operating expenses at the Company’s Mexican facilities are paid in Mexican pesos. In order to hedge a portion of these forecasted cash flows, the Company purchases foreign exchange contracts, with terms generally less than twelve months, to buy Mexican pesos for periods and amounts consistent with underlying cash flow exposures. These contracts are designated as cash flow hedges at inception and monitored for effectiveness on a routine basis. There were $34.4 million in peso contracts (notional value) outstanding at September 30, 2016 . The Company formally documents all relationships between hedging instruments and hedged items, as well as risk management objectives and strategies for undertaking various hedge transactions. The Company records and presents the fair values of all of its derivative assets and liabilities in the Consolidated Balance Sheets on a net basis, since they are subject to master netting agreements. As of September 30, 2016 , no netting took place, as all contracts were in the liability position. The balance sheet classifications and fair value of derivative instruments as of September 30, 2016 are as follows (amounts in thousands): Fair Value of Derivative Instruments (1) Prepaid and other current assets $ — Accrued expenses 2,073 ______________________________________________________________________________ (1) Fair Value measured using Level 2 inputs by adjusting the market spot rate by forward points, based on the date of the contract. The spot rates and forward points used are based on an average rate from an actively traded market. The impact on the Consolidated Statement of Operations for the quarter and six month period ended September 30, 2016 are as follows (amounts in thousands): Impact of Foreign Exchange Contracts on Condensed Consolidated Statement of Operations Statement Caption Quarter Ended September 30, 2016 Six-Month Period Ended September 30, 2016 Net Sales $ — $ — Operating costs and expenses: Cost of sales (1,140 ) (2,893 ) Total operating costs and expenses (1,140 ) (2,893 ) Operating income (loss) $ (1,140 ) $ (2,893 ) Unrealized gains and losses associated with the change in value of these financial instruments are recorded in AOCI. Changes in the derivatives’ fair values are deferred and recorded as a component of AOCI until the underlying transaction is settled and recorded to the income statement. When the hedged item affects income, gains or losses are reclassified from AOCI to the Consolidated Statement of Operations as Cost of sales for foreign exchange contracts to purchase such foreign currency. Any ineffectiveness, if material, in the Company’s hedging relationships is recognized immediately as a loss, within the same income statement accounts as described above; to date, there has been no ineffectiveness. Changes in derivative balances impact the line items “Prepaid and other assets” and “Accrued Expenses” on the Consolidated Balance Sheets and Statements of Cash Flows.

Concentrations of Risks

Concentrations of Risks	6 Months Ended
	Sep. 30, 2016
Risks and Uncertainties [Abstract]
Concentrations of Risks	Concentrations of Risks The Company sells to customers globally and, as the Company generally does not require collateral from its customers, on a monthly basis the Company evaluates customer account balances in order to assess the Company’s financial risks of collection. One customer, TTI, Inc., an electronics distributor, accounted for over 10% of the Company’s net sales in the quarters and six-month periods ended September 30, 2016 and 2015 . There were no accounts receivable balances from any customer exceeding 10% of gross accounts receivable as of September 30, 2016 and March 31, 2016 . Electronics distributors are an important distribution channel in the electronics industry and accounted for 46% and 42% of the Company’s net sales in the six-month periods ended September 30, 2016 and 2015 , respectively. As a result of the Company’s concentration of sales to electronics distributors, the Company may experience fluctuations in the Company’s operating results as electronics distributors experience fluctuations in end-market demand and/or adjust their inventory stocking levels.

Condensed Consolidating Financi

Condensed Consolidating Financial Statements	6 Months Ended
	Sep. 30, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Financial Statements	Condensed Consolidating Financial Statements The 10.5% Senior Notes are fully and unconditionally guaranteed, jointly and severally, on a senior basis by certain of the Company’s 100% owned domestic subsidiaries (“Guarantor Subsidiaries”) and secured by a first priority lien on 51% of the capital stock of certain of our foreign restricted subsidiaries (“Non-Guarantor Subsidiaries”). The Company’s Guarantor Subsidiaries and Non-Guarantor Subsidiaries are not consistent with the Company’s business groups or geographic operations; accordingly, this basis of presentation is not intended to present the Company’s financial condition, results of operations or cash flows for any purpose other than to comply with the specific requirements for subsidiary guarantor reporting. The Company is required to present condensed consolidating financial information in order for the subsidiary guarantors of the Company’s public debt to be exempt from reporting under the Securities Exchange Act of 1934, as amended. Condensed consolidating financial statements for the Company’s Guarantor Subsidiaries and Non-Guarantor Subsidiaries are presented in the following tables (amounts in thousands): Condensed Consolidating Balance Sheet September 30, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated ASSETS Current assets: Cash and cash equivalents $ 623 $ 48,399 $ 25,731 $ — $ 74,753 Accounts receivable, net — 32,116 55,973 — 88,089 Intercompany receivable 31,782 164,695 153,766 (350,243 ) — Inventories, net — 107,191 57,786 — 164,977 Prepaid expenses and other 3,325 18,219 12,410 (2,964 ) 30,990 Total current assets 35,730 370,620 305,666 (353,207 ) 358,809 Property and equipment, net 514 82,229 138,747 — 221,490 Goodwill — 40,294 — — 40,294 Intangible assets, net — 25,357 5,636 — 30,993 Investment in NEC TOKIN — 15,174 — — 15,174 Investments in subsidiaries 373,172 427,702 93,359 (894,233 ) — Deferred income taxes — 755 6,994 — 7,749 Other assets 27 1,643 796 — 2,466 Long-term intercompany receivable 66,172 40,612 1,089 (107,873 ) — Total assets $ 475,615 $ 1,004,386 $ 552,287 $ (1,355,313 ) $ 676,975 LIABILITIES AND STOCKHOLDERS’ EQUITY Current liabilities: Accounts payable 29 33,084 30,942 — 64,055 Intercompany payable 23,243 272,187 54,813 (350,243 ) — Accrued expenses 17,246 19,107 21,662 — 58,015 Income taxes payable — 2,996 261 (2,964 ) 293 Total current liabilities 40,518 327,374 107,678 (353,207 ) 122,363 Long-term debt, less current portion 352,217 19,881 14,000 — 386,098 Other non-current obligations — 35,112 47,528 — 82,640 Deferred income taxes — 2,242 752 — 2,994 Long-term intercompany payable — 66,172 41,701 (107,873 ) — Stockholders’ equity 82,880 553,605 340,628 (894,233 ) 82,880 Total liabilities and stockholders’ equity $ 475,615 $ 1,004,386 $ 552,287 $ (1,355,313 ) $ 676,975 Condensed Consolidating Balance Sheet (1) March 31, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated ASSETS Current assets: Cash and cash equivalents $ 640 $ 36,209 $ 28,155 $ — $ 65,004 Accounts receivable, net — 41,025 52,143 — 93,168 Intercompany receivable 30,210 132,523 170,224 (332,957 ) — Inventories, net — 113,289 55,590 — 168,879 Prepaid expenses and other 3,325 12,161 12,974 (2,964 ) 25,496 Total current assets 34,175 335,207 319,086 (335,921 ) 352,547 Property and equipment, net 255 93,936 147,648 — 241,839 Goodwill — 40,294 — — 40,294 Intangible assets, net — 27,252 6,049 — 33,301 Investment in NEC TOKIN — 20,334 — — 20,334 Investments in subsidiaries 382,108 429,723 93,359 (905,190 ) — Deferred income taxes — 800 7,597 — 8,397 Other assets — 2,452 616 — 3,068 Long-term intercompany receivable 67,500 41,428 1,088 (110,016 ) — Total assets $ 484,038 $ 991,426 $ 575,443 $ (1,351,127 ) $ 699,780 LIABILITIES AND STOCKHOLDERS’ EQUITY Current liabilities: Current portion of long-term debt $ 2,000 $ — $ — $ — $ 2,000 Accounts payable 20 34,618 36,343 — 70,981 Intercompany payable 280 275,498 57,179 (332,957 ) — Accrued expenses 17,305 11,807 21,208 — 50,320 Income taxes payable — 2,983 434 (2,964 ) 453 Total current liabilities 19,605 324,906 115,164 (335,921 ) 123,754 Long-term debt, less current portion 351,952 19,881 14,000 — 385,833 Other non-current obligations — 25,797 49,095 — 74,892 Deferred income taxes — 2,242 578 — 2,820 Long-term intercompany payable — 67,500 42,516 (110,016 ) — Stockholders’ equity 112,481 551,100 354,090 (905,190 ) 112,481 Total liabilities and stockholders’ equity $ 484,038 $ 991,426 $ 575,443 $ (1,351,127 ) $ 699,780 (1) Derived from audited financial statements. Condensed Consolidating Statement of Operations For the Quarter Ended September 30, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Net sales $ — $ 217,526 $ 169,343 $ (199,561 ) $ 187,308 Operating costs and expenses: Cost of sales 489 169,559 157,295 (186,448 ) 140,895 Selling, general and administrative expenses 9,631 18,717 10,738 (13,114 ) 25,972 Research and development 91 4,499 2,526 — 7,116 Restructuring charges — 3,452 546 — 3,998 Write down of long-lived assets — 6,193 — — 6,193 Net (gain) loss on sales and disposals of assets (285 ) 634 (265 ) — 84 Total operating costs and expenses 9,926 203,054 170,840 (199,562 ) 184,258 Operating income (loss) (9,926 ) 14,472 (1,497 ) 1 3,050 Non-operating (income) expense: Interest income — — (6 ) — (6 ) Interest expense 9,396 379 135 — 9,910 Change in value of NEC TOKIN option — (1,600 ) — — (1,600 ) Other (income) expense, net (8,843 ) 8,469 (531 ) — (905 ) Equity in earnings of subsidiaries (5,481 ) — — 5,481 — Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN (4,998 ) 7,224 (1,095 ) (5,480 ) (4,349 ) Income tax expense (benefit) — 19 811 — 830 Income (loss) from continuing operations before equity income (loss) from NEC TOKIN (4,998 ) 7,205 (1,906 ) (5,480 ) (5,179 ) Equity income (loss) from NEC TOKIN — 181 — — 181 Net income (loss) $ (4,998 ) $ 7,386 $ (1,906 ) $ (5,480 ) $ (4,998 ) Condensed Consolidating Statements of Comprehensive Income (Loss) Quarter Ended September 30, 2016 (Unaudited) Comprehensive income (loss) $ (4,648 ) $ 6,190 $ (2,648 ) $ (5,480 ) $ (6,586 ) Condensed Consolidating Statement of Operations For the Quarter Ended September 30, 2015 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Net sales $ — $ 222,770 $ 175,473 $ (212,120 ) $ 186,123 Operating costs and expenses: Cost of sales 521 173,470 167,722 (198,396 ) 143,317 Selling, general and administrative expenses 8,906 16,511 11,255 (13,724 ) 22,948 Research and development 66 4,218 1,868 — 6,152 Restructuring charges — 941 (918 ) — 23 Net (gain) loss on sales and disposals of assets (7 ) (400 ) 103 — (304 ) Total operating costs and expenses 9,486 194,740 180,030 (212,120 ) 172,136 Operating income (loss) (9,486 ) 28,030 (4,557 ) — 13,987 Non-operating (income) expense: Interest income — — (3 ) — (3 ) Interest expense 9,465 265 81 — 9,811 Change in value of NEC TOKIN option — (2,200 ) — — (2,200 ) Other (income) expense, net (8,466 ) 9,265 (2,890 ) — (2,091 ) Equity in earnings of subsidiaries (17,679 ) — — 17,679 — Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN 7,194 20,700 (1,745 ) (17,679 ) 8,470 Income tax expense (benefit) — 123 1,315 — 1,438 Income (loss) from continuing operations before equity income (loss) from NEC TOKIN 7,194 20,577 (3,060 ) (17,679 ) 7,032 Equity income (loss) from NEC TOKIN — 162 — — 162 Net income (loss) $ 7,194 $ 20,739 $ (3,060 ) $ (17,679 ) $ 7,194 Condensed Consolidating Statements of Comprehensive Income (Loss) For the Quarter Ended September 30, 2015 (Unaudited) Comprehensive income (loss) $ 7,277 $ 16,222 $ (7,330 ) $ (17,679 ) $ (1,510 ) Condensed Consolidating Statement of Operation For the Six-Month Period Ended September 30, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Net sales $ — $ 431,039 $ 339,893 $ (398,689 ) $ 372,243 Operating costs and expenses: Cost of sales 766 336,662 318,525 (372,646 ) 283,307 Selling, general and administrative expenses 19,776 36,206 21,948 (26,044 ) 51,886 Research and development 156 8,873 5,019 — 14,048 Restructuring charges — 3,591 1,095 — 4,686 Write down of long-lived assets — 6,193 — — 6,193 Net (gain) loss on sales and disposals of assets (285 ) 1,023 (563 ) — 175 Total operating costs and expenses 20,413 392,548 346,024 (398,690 ) 360,295 Operating income (loss) (20,413 ) 38,491 (6,131 ) 1 11,948 Non-operating (income) expense: Interest income — 3 (12 ) — (9 ) Interest expense 18,819 778 236 — 19,833 Change in value of NEC TOKIN option — 10,400 — — 10,400 Other (income) expense, net (18,193 ) 17,885 (2,991 ) — (3,299 ) Equity in earnings of subsidiaries (3,836 ) — — 3,836 — Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN (17,203 ) 9,425 (3,364 ) (3,835 ) (14,977 ) Income tax expense (benefit) — 57 2,573 — 2,630 Income (loss) from continuing operations before equity income (loss) from NEC TOKIN (17,203 ) 9,368 (5,937 ) (3,835 ) (17,607 ) Equity income (loss) from NEC TOKIN — 404 — — 404 Net income (loss) $ (17,203 ) $ 9,772 $ (5,937 ) $ (3,835 ) $ (17,203 ) Condensed Consolidating Statements of Comprehensive Income (Loss) For the Six-Month Period Ended September 30, 2016 (Unaudited) Comprehensive income (loss) $ (18,531 ) $ 2,503 $ (11,442 ) $ (3,835 ) $ (31,305 ) Condensed Consolidating Statement of Operations For the Six-Month Period Ended September 30, 2015 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Net sales $ — $ 444,540 $ 357,073 $ (427,900 ) $ 373,713 Operating costs and expenses: Cost of sales 699 354,984 333,952 (398,441 ) 291,194 Selling, general and administrative expenses 18,722 39,990 24,125 (29,459 ) 53,378 Research and development (53 ) 8,602 3,877 — 12,426 Restructuring charges — 1,456 391 — 1,847 Net (gain) loss on sales and disposals of assets (7 ) (753 ) 398 — (362 ) Total operating costs and expenses 19,361 404,279 362,743 (427,900 ) 358,483 Operating income (loss) (19,361 ) 40,261 (5,670 ) — 15,230 Non-operating (income) expense: Interest income — — (6 ) — (6 ) Interest expense 18,934 598 292 — 19,824 Change in value of NEC TOKIN option — 27,000 — — 27,000 Other (income) expense, net (17,553 ) 17,068 (690 ) — (1,175 ) Equity in earnings of subsidiaries 9,114 — — (9,114 ) — Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN (29,856 ) (4,405 ) (5,266 ) 9,114 (30,413 ) Income tax expense (benefit) — (364 ) 1,554 — 1,190 Income (loss) from continuing operations before equity income (loss) from NEC TOKIN (29,856 ) (4,041 ) (6,820 ) 9,114 (31,603 ) Equity income (loss) from NEC TOKIN — 1,747 — — 1,747 Net income (loss) $ (29,856 ) $ (2,294 ) $ (6,820 ) $ 9,114 $ (29,856 ) Condensed Consolidating Statements of Comprehensive Income (Loss) For the Six-Month Period Ended September 30, 2015 (Unaudited) Comprehensive income (loss) $ (27,224 ) $ (11,713 ) $ (6,624 ) $ 9,114 $ (36,447 ) Condensed Consolidating Statement of Cash Flows For the Six-Month Period Ended September 30, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Sources (uses) of cash and cash equivalents Net cash provided by (used in) operating activities $ 2,481 $ 14,940 $ 5,622 $ — $ 23,043 Investing activities: Capital expenditures — (2,750 ) (7,594 ) — (10,344 ) Net cash used in investing activities — (2,750 ) (7,594 ) — (10,344 ) Financing activities: Payments of long-term debt (1,870 ) — — — (1,870 ) Purchase of treasury stock (628 ) — — — (628 ) Net cash provided by (used in) financing activities (2,498 ) — — — (2,498 ) Net increase (decrease) in cash and cash equivalents (17 ) 12,190 (1,972 ) — 10,201 Effect of foreign currency fluctuations on cash — — (452 ) — (452 ) Cash and cash equivalents at beginning of fiscal period 640 36,209 28,155 — 65,004 Cash and cash equivalents at end of fiscal period $ 623 $ 48,399 $ 25,731 $ — $ 74,753 Condensed Consolidating Statements of Cash Flows For the Six-Month Period Ended September 30, 2015 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Sources (uses) of cash and cash equivalents Net cash provided by (used in) operating activities $ 575 $ (6,284 ) $ (5,223 ) $ — $ (10,932 ) Investing activities: Capital expenditures — (4,630 ) (4,638 ) — (9,268 ) Proceeds from sale of assets — 247 — — 247 Acquisitions, net of cash received — (2,892 ) — — (2,892 ) Net cash used in investing activities — (7,275 ) (4,638 ) — (11,913 ) Financing activities: Proceeds from revolving line of credit — 6,000 2,000 — 8,000 Payments of revolving line of credit — (3,500 ) — — (3,500 ) Payments of long-term debt — — (481 ) — (481 ) Purchase of treasury stock (575 ) — — — (575 ) Net cash provided by (used in) financing activities (575 ) 2,500 1,519 — 3,444 Net increase (decrease) in cash and cash equivalents — (11,059 ) (8,342 ) — (19,401 ) Effect of foreign currency fluctuations on cash — — 354 — 354 Cash and cash equivalents at beginning of fiscal period 640 33,094 22,628 — 56,362 Cash and cash equivalents at end of fiscal period $ 640 $ 22,035 $ 14,640 $ — $ 37,315

Basis of Financial Statement 21

Basis of Financial Statement Presentation (Policies)	6 Months Ended
	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Use of Estimates and Assumptions	Use of Estimates and Assumptions The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates, assumptions, and judgments based on historical data and other assumptions that management believes are reasonable. These estimates and assumptions affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements. In addition, they affect the reported amounts of revenues and expenses during the reporting period. The Company’s judgments are based on management’s assessment as to the effect certain estimates, assumptions, or future trends or events may have on the financial condition and results of operations reported in the unaudited condensed consolidated financial statements. It is important that readers of these unaudited financial statements understand that actual results could differ from these estimates, assumptions, and judgments.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements New accounting standards adopted/issued In August 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The update clarifies how cash receipts and cash payments in certain transactions are presented and classified in the statement of cash flows. The effective date of this update is for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The update requires retrospective application to all periods presented but may be applied prospectively if retrospective application is impracticable. The Company is currently evaluating the impact of the adoption of this principle on the Company’s consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation. This guidance changes several aspects of the accounting for share-based payment award transactions, including: (1) Accounting and Cash Flow Classification for Excess Tax Benefits and Deficiencies, (2) Forfeitures, and (3) Tax Withholding Requirements and Cash Flow Classification. This ASU is effective for fiscal years and interim periods within those years beginning after December 15, 2016. Early application is permitted, and KEMET adopted ASU No. 2016-09 as of April 1, 2016. The Company elected to discontinue estimating forfeitures that are expected to occur and recorded a cumulative effect adjustment to retained earnings of 130,000 as of April 1, 2016. There was no cumulative adjustment related to the excess tax benefits as the Company did not have an additional paid in capital pool of excess tax benefits. The adoption did not have a significant impact to the Company’s consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases. The ASU requires lessees to recognize a right-of-use asset and a lease liability for virtually all of their leases (other than short-term leases). The guidance is to be applied using a modified retrospective approach at the beginning of the earliest comparative period in the financial statements. This ASU is effective for fiscal years and interim periods within those years beginning after December 15, 2018. Early application is permitted. The Company is currently in the process of assessing the impact the adoption of this guidance will have on the Company’s consolidated financial statements. In July 2015, the FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory. The ASU requires an entity that uses first-in, first-out or average cost to measure its inventory at the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. ASU 2015-11 was effective for interim and annual reporting periods beginning April 1, 2016. The adoption of ASU 2015-11 did not materially impact the Company’s operating results and financial position. In April 2015, the FASB issued ASU No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. The ASU specifies that debt issuance costs related to a note shall be reported in the balance sheet as a direct reduction from the face amount of the note. In August 2015, the FASB issued ASU No. 2015-15, Interest - Imputation of Interest (Subtopic 835-30) - Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which clarifies the treatment of debt issuance costs associated with line-of-credit arrangements that were not specifically addressed in ASU 2015-03. ASU 2015-15 states that entities may elect to continue to treat debt issuance costs associated with lines of credit as an asset, consistent with current treatment. The Company adopted these ASUs in the first quarter of fiscal year 2017. The ASUs did not impact the Company’s results of operations or liquidity. The balance sheet as of March 31, 2016 has been adjusted to reflect retrospective application of the new accounting guidance as follows (amounts in thousands): As Previously Reported Retrospective Adjustment As Adjusted Other assets $ 5,832 $ (2,764 ) $ 3,068 Total assets 702,544 (2,764 ) 699,780 Long-term debt, less current portion 388,597 (2,764 ) 385,833 Total liabilities and stockholders’ equity 702,544 (2,764 ) 699,780 In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements-Going Concern. The new guidance requires management to assess if there is substantial doubt about an entity’s ability to continue as a going concern for each annual and interim period. If conditions or events give rise to substantial doubt, disclosures are required. ASU 2014-15 is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter; early application is permitted. This new guidance is not expected to have a material impact on the Company’s Consolidated Financial Statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which supersedes existing accounting standards for revenue recognition and creates a single framework. The new guidance requires either a retrospective or a modified retrospective approach at adoption. Early adoption is permitted, but not before Company’s fiscal year that begins on April 1, 2017 (the original effective date of the ASU). Additional updates to Topic 606 issued by the FASB in 2015 and 2016 include the following: • ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which defers the effective date of the new guidance such that the new provisions will now be required for fiscal years, and interim periods within those years, beginning after December 15, 2017 (ASU No. 2015-14 is effective for the Company’s fiscal year that begins on April 1, 2018 and interim periods within that fiscal year). • ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations, which clarifies the implementation guidance on principal versus agent considerations (reporting revenue gross versus net). • ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarifies the implementation guidance on identifying performance obligations and classifying licensing arrangements. • ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, which clarifies the implementation guidance in a number of other areas. The Company is currently in the process of assessing the impact the adoption of the new revenue standards will have on its consolidated financial statements and related disclosures, as well as the available transition methods. There are currently no other accounting standards that have been issued that will have a significant impact on the Company’s financial position, results of operations or cash flows upon adoption.
Fair Value Measurement	Fair Value Measurement The Company utilizes three levels of inputs to measure the fair value of (a) nonfinancial assets and liabilities that are recognized or disclosed at fair value in the Company’s consolidated financial statements on a recurring basis (at least annually) and (b) all financial assets and liabilities. Fair value is defined 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 on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The first two inputs are considered observable and the last is considered unobservable. The levels of inputs are as follows: • Level 1—Quoted prices in active markets for identical assets or liabilities. • Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.
Inventories	Inventories Inventories are stated at the lower of cost or market.
Warrant	Warrant As of September 30, 2016 and March 31, 2016 , 8.4 million shares were subject to the warrant (which expires June 30, 2019) held by K Equity, LLC.
Revenue Recognition	Revenue Recognition The Company ships products to customers based upon firm orders and revenue is recognized when the sales process is complete. This occurs when products are shipped to the customer in accordance with the terms of an agreement of sale, there is a fixed or determinable selling price, title and risk of loss have been transferred and collectability is reasonably assured. Based on product availability, customer requirements and customer consent, the Company may ship products earlier than the initial planned ship date. Shipping and handling costs are included in cost of sales. A portion of sales is related to products designed to meet customer specific requirements. These products typically have stricter tolerances making them useful to the specific customer requesting the product and to customers with similar or less stringent requirements. The Company recognizes revenue when title to the products transfers to the customer. A portion of sales is made to distributors under agreements allowing certain rights of return and price protection on unsold merchandise held by distributors. The Company’s distributor policy includes inventory price protection and “ship-from-stock and debit” (“SFSD”) programs common in the industry. KEMET’s SFSD program provides authorized distributors with the flexibility to meet marketplace prices by allowing them, upon a pre-approved case-by-case basis, to adjust their purchased inventory cost to correspond with current market demand. Requests for SFSD adjustments are considered on an individual basis, require a pre-approved cost adjustment quote from their local KEMET sales representative and apply only to a specific customer, part, specified special price amount, specified quantity, and are only valid for a specific period of time. To estimate potential SFSD adjustments corresponding with current period sales, KEMET records a sales reserve based on historical SFSD credits, distributor inventory levels, and certain accounting assumptions, all of which are reviewed quarterly. Most of the Company’s distributors have the right to return to KEMET a certain portion of the purchased inventory, which, in general, does not exceed 6% of their purchases from the previous fiscal quarter. KEMET estimates future returns based on historical return patterns and records a corresponding allowance on the Condensed Consolidated Balance Sheets. The Company also offers volume based rebates on a case-by-case basis to certain customers in each of the Company’s sales channels. The establishment of sales allowances is recognized as a component of the line item “Net sales” on the Condensed Consolidated Statements of Operations, while the associated reserves are included in the line item “Accounts receivable, net” on the Condensed Consolidated Balance Sheets. Estimates used in determining sales allowances are subject to various factors. This includes, but is not limited to, changes in economic conditions, pricing changes, product demand, inventory levels in the supply chain, the effects of technological change, and other variables that might result in changes to the Company’s estimates. The Company provides a limited warranty to customers that the Company’s products meet certain specifications. The warranty period is generally limited to one year , and the Company’s liability under the warranty is generally limited to a replacement of the product or refund of the purchase price of the product. Warranty costs as a percentage of net sales were less than 1.0% for the quarters and six-month periods ended September 30, 2016 and 2015 . The Company recognizes warranty costs when they are both probable and reasonably estimable.

Basis of Financial Statement 22

Basis of Financial Statement Presentation (Tables)	6 Months Ended
	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of new accounting pronouncements	The balance sheet as of March 31, 2016 has been adjusted to reflect retrospective application of the new accounting guidance as follows (amounts in thousands): As Previously Reported Retrospective Adjustment As Adjusted Other assets $ 5,832 $ (2,764 ) $ 3,068 Total assets 702,544 (2,764 ) 699,780 Long-term debt, less current portion 388,597 (2,764 ) 385,833 Total liabilities and stockholders’ equity 702,544 (2,764 ) 699,780
Schedule of assets and liabilities measured at fair value on a recurring basis	Assets and liabilities measured at fair value on a recurring basis as of September 30, 2016 and March 31, 2016 are as follows (amounts in thousands): Carrying Value September 30, Fair Value September 30, Fair Value Measurement Using Carrying Value March 31, Fair Value March 31, Fair Value Measurement Using 2016 2016 Level 1 Level 2 (2) Level 3 2016 2016 Level 1 Level 2 (2) Level 3 Assets (Liabilities): Money markets (1) $ 640 $ 640 $ 640 $ — $ — $ 738 $ 738 $ 738 $ — $ — Total debt (386,098 ) (384,352 ) (354,987 ) (29,365 ) — (387,833 ) (284,261 ) (254,713 ) (29,548 ) — NEC TOKIN option, net (3) (31,000 ) (31,000 ) — — (31,000 ) (20,600 ) (20,600 ) — — (20,600 ) ___________________ (1) Included in the line item “Cash and cash equivalents” on the Condensed Consolidated Balance Sheets. (2) The valuation approach used to calculate fair value was a discounted cash flow based on the borrowing rate for each respective debt facility. (3) See Note 6 , “Investment in NEC TOKIN,” for a description of the NEC TOKIN option. The value of the option depends on the enterprise value of NEC TOKIN Corporation and its forecasted EBITDA over the duration of the option. The option has been valued using option pricing methods in a Monte Carlo simulation.
Summary of NEC TOKIN option valuation activity using significant unobservable inputs (Level 3)	The table below summarizes NEC TOKIN option valuation activity using significant unobservable inputs (Level 3) (amounts in thousands): March 31, 2016 $ (20,600 ) Change in value of NEC TOKIN option (10,400 ) September 30, 2016 $ (31,000 )
Schedule of components of inventories	Inventories are stated at the lower of cost or market. The components of inventories are as follows (amounts in thousands): September 30, 2016 March 31, 2016 Raw materials and supplies $ 75,211 $ 80,289 Work in process 50,081 46,631 Finished goods 55,698 58,060 180,990 184,980 Inventory reserves (16,013 ) (16,101 ) $ 164,977 $ 168,879

Debt (Tables)

Debt (Tables)	6 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Summary of Debt	A summary of debt is as follows (amounts in thousands): September 30, March 31, 10.5% Senior Notes, net (1) $ 352,217 $ 353,952 Revolving line of credit 33,881 33,881 Total debt 386,098 387,833 Current maturities — (2,000 ) Total long-term debt $ 386,098 $ 385,833 (1) As noted in Note 1, “Basis of Financial Statements Presentation,” ASU No. 2015-03, Interest - Imputation of Interest, was adopted as of April 1, 2016. As such, debt issuance cost, if any, is included within the respective debt balance. Amounts shown are net of premium and debt issuance costs of $0.8 million and $1.0 million as of September 30, 2016 and March 31, 2016 , respectively which reduce the 10.5% Senior Notes balance.
Schedule of line item Interest expense on the Condensed Consolidated Statements of Operations	The line item “Interest expense” on the Condensed Consolidated Statements of Operations for the quarters and six-month periods ended September 30, 2016 and 2015 , consists of the following (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Contractual interest expense $ 9,688 $ 9,784 $ 19,398 $ 19,570 Capitalized interest (51 ) (236 ) (103 ) (276 ) Amortization of debt issuance costs 348 348 696 696 Amortization of debt (premium) discount (200 ) (185 ) (399 ) (366 ) Imputed interest on acquisition-related obligations 40 54 81 107 Interest expense on capital lease 85 46 160 93 Total interest expense $ 9,910 $ 9,811 $ 19,833 $ 19,824
Schedule of Line of Credit Facilities [Table Text Block]	The Company had the following activity for the six-month period ended September 30, 2016 and resulting balances under the revolving line of credit (amounts in thousands, excluding percentages): March 31, Six-Month Period Ended September 30, 2016 September 30, Outstanding Borrowings Additional Borrowings Repayments Outstanding Borrowings Rate (1) (2) Due Date U.S. Facility $ 19,881 $ — $ — $ 19,881 4.750 % December 19, 2019 Singapore Facility Singapore Borrowing 1 (3) 12,000 — — 12,000 3.375 % November 19, 2016 Singapore Borrowing 2 (3) 2,000 — — 2,000 3.375 % January 9, 2017 Total Facilities $ 33,881 $ — $ — $ 33,881 ______________________________________________________________________________ (1) For U.S. borrowings, Base Rate plus 1.50% , as defined in the Loan and Security Agreement. (2) For Singapore borrowings, London Interbank Offer Rate (“LIBOR”), plus a spread of 2.50% as of September 30, 2016 . (3) The Company has the intent and ability to extend the due date on the Singapore borrowings.

Restructuring Charges (Tables)

Restructuring Charges (Tables)	6 Months Ended
	Sep. 30, 2016
Restructuring and Related Activities [Abstract]
Summary of the expenses aggregated on the Condensed Consolidated Statements of Operations line item "Restructuring charges"	A summary of the expenses aggregated in the Condensed Consolidated Statements of Operations line item “Restructuring charges” in the quarters and six-month periods ended September 30, 2016 and 2015 , is as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Personnel reduction costs/(benefits) $ 1,432 $ (434 ) $ 2,079 $ 1,110 Relocation and exit costs 2,566 457 2,607 737 Restructuring charges $ 3,998 $ 23 $ 4,686 $ 1,847
Reconciliation of the beginning and ending liability balances for restructuring charges included in the line items Accrued expenses and Other non-current obligations on the Condensed Consolidated Balance Sheets	A reconciliation of the beginning and ending liability balances for restructuring charges included in the line items “Accrued expenses” and “Other non-current obligations” on the Condensed Consolidated Balance Sheets for the quarters and six-month periods ended September 30, 2016 and 2015 are as follows (amounts in thousands): Quarter Ended September 30, 2016 Quarter Ended September 30, 2015 Personnel Reductions Manufacturing Relocations Personnel Reductions Manufacturing Relocations Beginning of period $ 1,079 $ — $ 6,555 $ — Costs charged to expense 1,432 2,566 (434 ) 457 Costs paid or settled (408 ) (584 ) (3,843 ) (457 ) Change in foreign exchange (2 ) — 2 — End of period $ 2,101 $ 1,982 $ 2,280 $ — Six-Month Period Ended September 30, 2016 Six-Month Period Ended September 30, 2015 Personnel Reductions Manufacturing Relocations Personnel Reductions Manufacturing Relocations Beginning of period $ 976 $ — $ 7,239 $ — Costs charged to expense 2,079 2,607 1,110 737 Costs paid or settled (931 ) (625 ) (6,283 ) (737 ) Change in foreign exchange (23 ) — 214 — End of period $ 2,101 $ 1,982 $ 2,280 $ —

Comprehensive Income (Loss) a25

Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Sep. 30, 2016
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Schedule of changes in Accumulated Other Comprehensive Income (Loss)	Changes in Accumulated Other Comprehensive Income (Loss) (“AOCI”) for the quarters ended September 30, 2016 and 2015 include the following components (amounts in thousands): Foreign Currency Translation (1) Post-Retirement Defined Benefit Pension Plans, Net of Tax (2) Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss) Foreign Exchange Contracts Net Accumulated Other Comprehensive Income (Loss) Balance at June 30, 2016 $ (16,658 ) $ 1,072 $ (14,998 ) $ (12,123 ) $ (1,232 ) $ (43,939 ) Other comprehensive income (loss) before reclassifications (689 ) — — (179 ) (1,981 ) (2,849 ) Amounts reclassified out of AOCI — (43 ) 164 — 1,140 1,261 Other comprehensive income (loss) (689 ) (43 ) 164 (179 ) (841 ) (1,588 ) Balance at September 30, 2016 $ (17,347 ) $ 1,029 $ (14,834 ) $ (12,302 ) $ (2,073 ) $ (45,527 ) Foreign Currency Translation Post-Retirement Defined Benefit Pension Plans, Net of Tax (2) Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss) Foreign Exchange Contracts Net Accumulated Other Comprehensive Income (Loss) Balance at June 30, 2015 $ (6,267 ) $ 1,119 $ (20,196 ) $ 605 $ (1,944 ) $ (26,683 ) Other comprehensive income (loss) before reclassifications (4,466 ) — — (3,674 ) (1,742 ) (9,882 ) Amounts reclassified out of AOCI — (39 ) 245 — 972 1,178 Other comprehensive income (loss) (4,466 ) (39 ) 245 (3,674 ) (770 ) (8,704 ) Balance at September 30, 2015 $ (10,733 ) $ 1,080 $ (19,951 ) $ (3,069 ) $ (2,714 ) $ (35,387 ) Changes in AOCI for the six-month periods ended September 30, 2016 and 2015 include the following components (amounts in thousands): Foreign Currency Translation (1) Post-Retirement Defined Benefit Pension Plans, Net of Tax (2) Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss) Foreign Exchange Contracts Net Accumulated Other Comprehensive Income (Loss) Balance at March 31, 2016 $ (10,272 ) $ 1,114 $ (15,161 ) $ (6,739 ) $ (367 ) $ (31,425 ) Other comprehensive income (loss) before reclassifications (7,075 ) — — (5,563 ) (4,599 ) (17,237 ) Amounts reclassified out of AOCI — (85 ) 327 — 2,893 3,135 Other comprehensive income (loss) (7,075 ) (85 ) 327 (5,563 ) (1,706 ) (14,102 ) Balance at September 30, 2016 $ (17,347 ) $ 1,029 $ (14,834 ) $ (12,302 ) $ (2,073 ) $ (45,527 ) Foreign Currency Translation Post-Retirement Defined Benefit Pension Plans, Net of Tax (2) Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss) Foreign Exchange Contracts Net Accumulated Other Comprehensive Income (Loss) Balance at March 31, 2015 $ (12,132 ) $ 1,159 $ (20,363 ) $ 1,537 $ 1,003 $ (28,796 ) Other comprehensive income (loss) before reclassifications 1,399 — — (4,606 ) (5,193 ) (8,400 ) Amounts reclassified out of AOCI — (79 ) 412 — 1,476 1,809 Other comprehensive income (loss) 1,399 (79 ) 412 (4,606 ) (3,717 ) (6,591 ) Balance at September 30, 2015 $ (10,733 ) $ 1,080 $ (19,951 ) $ (3,069 ) $ (2,714 ) $ (35,387 ) (1) Due primarily to the Company’s valuation allowance on deferred tax assets, there were no significant deferred tax effects associated with the cumulative currency translation gains and losses during the quarter and six-month periods ended September 30, 2016 . (2) Ending balance is net of tax of $2.0 million and $2.2 million as of September 30, 2016 and September 30, 2015 , respectively.

Investment in NEC TOKIN (Tables

Investment in NEC TOKIN (Tables)	6 Months Ended
	Sep. 30, 2016
Equity Method Investments and Joint Ventures [Abstract]
Reconciliation between NEC TOKIN's net loss and KEMET's equity investment loss	Summarized financial information for NEC TOKIN follows (amounts in thousands): September 30, March 31, Current assets $ 249,818 $ 240,427 Non-current assets 258,333 260,614 Current liabilities 171,193 179,360 Non-current liabilities 368,011 335,500 Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Sales $ 126,589 $ 117,358 $ 247,099 $ 232,092 Gross profit 27,055 25,055 53,601 49,723 Net income (loss) 2,012 2,007 4,362 7,261 A reconciliation between NEC TOKIN’s net income (loss) and KEC’s equity investment income (loss) follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 NEC TOKIN net income (loss) $ 2,012 $ 2,007 4,362 7,261 KEC’s economic interest % 34 % 34 % 34 % 34 % Equity income (loss) from NEC TOKIN before adjustments 684 682 1,483 2,469 Adjustments: Amortization and depreciation (581 ) (488 ) (1,125 ) (624 ) Inventory profit elimination 78 (32 ) 46 (98 ) Equity income (loss) from NEC TOKIN $ 181 $ 162 $ 404 $ 1,747 A reconciliation between NEC TOKIN’s net assets and KEC’s investment in NEC TOKIN follows (amounts in thousands): September 30, March 31, Investment in NEC TOKIN $ 15,174 $ 20,334 Purchase price accounting basis adjustments: Property, plant and equipment (1) 3,565 3,365 Technology (1) (10,413 ) (10,134 ) Long-term debt (1) (1,684 ) (1,975 ) Goodwill (8,377 ) (7,555 ) Indemnity asset for legal investigation (8,500 ) (8,500 ) Inventory profit elimination (2) 326 371 Other (650 ) (604 ) KEC’s 34% economic interest in NEC TOKIN’s net assets $ (10,559 ) $ (4,698 ) (1) Amortized over the estimated lives. (2) Adjusted each period for any activity.
Schedule of Related Party Transactions	Summarized transactions between KEC and NEC TOKIN are as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 KEC’s sales to NEC TOKIN $ 5,135 $ 4,474 $ 8,282 $ 9,330 NEC TOKIN’s sales to KEMET 1,889 2,112 3,761 3,590 September 30, March 31, Accounts receivable $ 3,708 $ 5,220 Accounts payable 792 1,019 Management service agreement receivable (1) 649 748 (1) In accordance with the Stockholders’ Agreement, KEC entered into a management services agreement with NEC TOKIN to provide services for which KEC is being reimbursed.

Segment and Geographic Inform27

Segment and Geographic Information (Tables)	6 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Schedule of business group's net sales, operating income (loss), depreciation and amortization expenses and sales by region	The following table reflects each business group’s net sales, operating income (loss), depreciation and amortization expenses and sales by region for the quarters and six-month periods ended September 30, 2016 and 2015 (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Net sales: Solid Capacitors $ 142,641 $ 141,284 $ 284,585 $ 280,961 Film and Electrolytic 44,667 44,839 87,658 92,752 $ 187,308 $ 186,123 $ 372,243 $ 373,713 Operating income (loss) (1) (2): Solid Capacitors $ 35,410 $ 33,979 $ 70,489 $ 64,012 Film and Electrolytic (7,096 ) 2,217 (8,563 ) 2,929 Corporate (25,264 ) (22,209 ) (49,978 ) (51,711 ) $ 3,050 $ 13,987 $ 11,948 $ 15,230 Depreciation and amortization expense: Solid Capacitors $ 5,147 $ 5,178 $ 10,565 $ 10,934 Film and Electrolytic 2,836 2,928 5,551 5,870 Corporate 1,457 1,159 2,760 2,378 $ 9,440 $ 9,265 $ 18,876 $ 19,182 __________________ (1) Restructuring charges included in Operating income (loss) are as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Restructuring charges: Solid Capacitors $ 558 $ 570 $ 694 $ 802 Film and Electrolytic 3,115 (749 ) 3,664 537 Corporate 325 202 328 508 $ 3,998 $ 23 $ 4,686 $ 1,847 (2) Write down of long-lived assets included in Operating income (loss) are as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Write down of Long-lived Assets Solid Capacitors $ 2,076 $ — $ 2,076 $ — Film and Electrolytic 4,117 — 4,117 — Corporate — — — — $ 6,193 $ — $ 6,193 $ — ___________________ Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Sales by region: North and South America (“Americas”) $ 56,781 $ 58,080 $ 111,882 $ 114,114 Europe, Middle East, Africa (“EMEA”) 60,047 59,458 120,533 121,015 Asia and Pacific Rim (“APAC”) 70,480 68,585 139,828 138,584 $ 187,308 $ 186,123 $ 372,243 $ 373,713

Defined Benefit Pension and O28

Defined Benefit Pension and Other Postretirement Benefit Plans (Tables)	6 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Schedule of components of net periodic benefit (income) costs relating to pension and other postretirement benefit plans	The components of net periodic benefit (income) costs relating to the Company’s pension and other postretirement benefit plans are as follows for the quarters ended September 30, 2016 and 2015 (amounts in thousands): Pension Post-retirement Benefit Plan Quarters Ended September 30, Quarters Ended September 30, 2016 2015 2016 2015 Net service cost $ 347 $ 404 $ — $ — Interest cost 358 338 4 6 Expected return on net assets (94 ) (105 ) — — Amortization: Actuarial (gain) loss 115 197 (43 ) (39 ) Prior service cost 21 15 — — Total net periodic benefit (income) costs $ 747 $ 849 $ (39 ) $ (33 ) The components of net periodic benefit (income) costs relating to the Company’s pension and other postretirement benefit plans are as follows for the six-month periods ended September 30, 2016 and 2015 (amounts in thousands): Pension Post-retirement Benefit Plan Six-Month Periods Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Net service cost $ 693 $ 1,121 $ — $ — Interest cost 717 675 8 12 Expected return on net assets (188 ) (210 ) — — Amortization: Actuarial (gain) loss 230 394 (85 ) (79 ) Prior service cost 42 29 — — Total net periodic benefit (income) costs $ 1,494 $ 2,009 $ (77 ) $ (67 )

Stock-based Compensation (Table

Stock-based Compensation (Tables)	6 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	On May 18, 2016, the Company granted RSUs under the 2017/2018 LTIP with a grant date fair value of $2.46 that vests as follows (amounts in thousands): Shares May 18, 2017 202 May 18, 2018 202 May 18, 2019 209 Total shares granted 613 The following is the vesting schedule of RSUs under each respective LTIP, which vested during the six-month period ended September 30, 2016 (shares in thousands): 2016/2017 2015/2016 2014/2015 Time-based award vested 187 111 130 Performance-based award vested — 103 73 Restricted stock activity, excluding the LTIP activity discussed above, for the six-month period ended September 30, 2016 is as follows (amounts in thousands except fair value): Shares Weighted- Non-vested restricted stock at March 31, 2016 1,430 $ 3.51 Granted 70 3.00 Vested (103 ) 2.22 Forfeited (13 ) 3.21 Non-vested restricted stock at September 30, 2016 1,384 $ 3.59
Schedule of the compensation expense (recovery) associated with stock-based compensation	The compensation expense associated with stock-based compensation for the quarters ended September 30, 2016 and 2015 is recorded on the Condensed Consolidated Statements of Operations as follows (amounts in thousands): Quarter Ended September 30, 2016 Quarter Ended September 30, 2015 Stock Options Restricted Stock LTIPs Stock Options Restricted Stock LTIPs Cost of sales $ 7 $ 98 $ 196 $ 28 $ 163 $ 268 Selling, general and administrative expenses 7 343 404 26 350 433 Research and development — 6 43 1 5 54 Total $ 14 $ 447 $ 643 $ 55 $ 518 $ 755 The compensation expense associated with stock-based compensation for the six-month periods ended September 30, 2016 and 2015 is recorded on the Condensed Consolidated Statements of Operations as follows (amounts in thousands): Six-Month Period Ended September 30, 2016 Six-Month Period Ended September 30, 2015 Stock Options Restricted Stock LTIPs Stock Options Restricted Stock LTIPs Cost of sales $ 18 $ 288 $ 379 $ 61 $ 315 $ 496 Selling, general and administrative expenses 17 690 831 68 693 891 Research and development 1 11 97 3 11 69 Total $ 36 $ 989 $ 1,307 $ 132 $ 1,019 $ 1,456

Basic and Diluted Net Income 30

Basic and Diluted Net Income (Loss) Per Common Share (Tables)	6 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Schedule of basic EPS and diluted EPS	The following table presents basic earnings per share (“EPS”) and diluted EPS (amounts in thousands, except per share data): Quarters Ended September 30, Six-Month Periods Ended 2016 2015 2016 2015 Numerator: Net income (loss) $ (4,998 ) $ 7,194 $ (17,203 ) $ (29,856 ) Denominator: Weighted-average shares outstanding: Basic 46,590 45,767 46,471 45,660 Assumed conversion of employee stock grants — 217 — — Assumed conversion of warrants — 4,020 — — Diluted 46,590 50,004 46,471 45,660 Net income (loss) per basic share $ (0.11 ) $ 0.16 $ (0.37 ) $ (0.65 ) Net income (loss) per diluted share $ (0.11 ) $ 0.14 $ (0.37 ) $ (0.65 )
Schedule of common stock equivalents that could potentially dilute net income (loss) per basic share in the future, but were not included in the computation of diluted earnings per share because the impact would have been antidilutive	Common stock equivalents that could potentially dilute net income (loss) per basic share in the future, but were not included in the computation of diluted earnings per share because the impact would have been anti-dilutive, are as follows (amounts in thousands): Quarters Ended September 30, Six-Month Periods Ended September 30, 2016 2015 2016 2015 Assumed conversion of employee stock grants 2,596 3,942 2,322 3,507 Assumed conversion of warrants 5,771 — 5,380 5,305

Derivatives (Tables)

Derivatives (Tables)	6 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	The balance sheet classifications and fair value of derivative instruments as of September 30, 2016 are as follows (amounts in thousands): Fair Value of Derivative Instruments (1) Prepaid and other current assets $ — Accrued expenses 2,073 ______________________________________________________________________________ (1) Fair Value measured using Level 2 inputs by adjusting the market spot rate by forward points, based on the date of the contract. The spot rates and forward points used are based on an average rate from an actively traded market.
Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block]	The impact on the Consolidated Statement of Operations for the quarter and six month period ended September 30, 2016 are as follows (amounts in thousands): Impact of Foreign Exchange Contracts on Condensed Consolidated Statement of Operations Statement Caption Quarter Ended September 30, 2016 Six-Month Period Ended September 30, 2016 Net Sales $ — $ — Operating costs and expenses: Cost of sales (1,140 ) (2,893 ) Total operating costs and expenses (1,140 ) (2,893 ) Operating income (loss) $ (1,140 ) $ (2,893 )

Condensed Consolidating Finan32

Condensed Consolidating Financial Statements (Tables)	6 Months Ended
	Sep. 30, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Balance Sheet	Condensed Consolidating Balance Sheet (1) March 31, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated ASSETS Current assets: Cash and cash equivalents $ 640 $ 36,209 $ 28,155 $ — $ 65,004 Accounts receivable, net — 41,025 52,143 — 93,168 Intercompany receivable 30,210 132,523 170,224 (332,957 ) — Inventories, net — 113,289 55,590 — 168,879 Prepaid expenses and other 3,325 12,161 12,974 (2,964 ) 25,496 Total current assets 34,175 335,207 319,086 (335,921 ) 352,547 Property and equipment, net 255 93,936 147,648 — 241,839 Goodwill — 40,294 — — 40,294 Intangible assets, net — 27,252 6,049 — 33,301 Investment in NEC TOKIN — 20,334 — — 20,334 Investments in subsidiaries 382,108 429,723 93,359 (905,190 ) — Deferred income taxes — 800 7,597 — 8,397 Other assets — 2,452 616 — 3,068 Long-term intercompany receivable 67,500 41,428 1,088 (110,016 ) — Total assets $ 484,038 $ 991,426 $ 575,443 $ (1,351,127 ) $ 699,780 LIABILITIES AND STOCKHOLDERS’ EQUITY Current liabilities: Current portion of long-term debt $ 2,000 $ — $ — $ — $ 2,000 Accounts payable 20 34,618 36,343 — 70,981 Intercompany payable 280 275,498 57,179 (332,957 ) — Accrued expenses 17,305 11,807 21,208 — 50,320 Income taxes payable — 2,983 434 (2,964 ) 453 Total current liabilities 19,605 324,906 115,164 (335,921 ) 123,754 Long-term debt, less current portion 351,952 19,881 14,000 — 385,833 Other non-current obligations — 25,797 49,095 — 74,892 Deferred income taxes — 2,242 578 — 2,820 Long-term intercompany payable — 67,500 42,516 (110,016 ) — Stockholders’ equity 112,481 551,100 354,090 (905,190 ) 112,481 Total liabilities and stockholders’ equity $ 484,038 $ 991,426 $ 575,443 $ (1,351,127 ) $ 699,780 (1) Derived from audited financial statements. Condensed Consolidating Balance Sheet September 30, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated ASSETS Current assets: Cash and cash equivalents $ 623 $ 48,399 $ 25,731 $ — $ 74,753 Accounts receivable, net — 32,116 55,973 — 88,089 Intercompany receivable 31,782 164,695 153,766 (350,243 ) — Inventories, net — 107,191 57,786 — 164,977 Prepaid expenses and other 3,325 18,219 12,410 (2,964 ) 30,990 Total current assets 35,730 370,620 305,666 (353,207 ) 358,809 Property and equipment, net 514 82,229 138,747 — 221,490 Goodwill — 40,294 — — 40,294 Intangible assets, net — 25,357 5,636 — 30,993 Investment in NEC TOKIN — 15,174 — — 15,174 Investments in subsidiaries 373,172 427,702 93,359 (894,233 ) — Deferred income taxes — 755 6,994 — 7,749 Other assets 27 1,643 796 — 2,466 Long-term intercompany receivable 66,172 40,612 1,089 (107,873 ) — Total assets $ 475,615 $ 1,004,386 $ 552,287 $ (1,355,313 ) $ 676,975 LIABILITIES AND STOCKHOLDERS’ EQUITY Current liabilities: Accounts payable 29 33,084 30,942 — 64,055 Intercompany payable 23,243 272,187 54,813 (350,243 ) — Accrued expenses 17,246 19,107 21,662 — 58,015 Income taxes payable — 2,996 261 (2,964 ) 293 Total current liabilities 40,518 327,374 107,678 (353,207 ) 122,363 Long-term debt, less current portion 352,217 19,881 14,000 — 386,098 Other non-current obligations — 35,112 47,528 — 82,640 Deferred income taxes — 2,242 752 — 2,994 Long-term intercompany payable — 66,172 41,701 (107,873 ) — Stockholders’ equity 82,880 553,605 340,628 (894,233 ) 82,880 Total liabilities and stockholders’ equity $ 475,615 $ 1,004,386 $ 552,287 $ (1,355,313 ) $ 676,975
Condensed Consolidating Statement of Operations	Condensed Consolidating Statement of Operation For the Six-Month Period Ended September 30, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Net sales $ — $ 431,039 $ 339,893 $ (398,689 ) $ 372,243 Operating costs and expenses: Cost of sales 766 336,662 318,525 (372,646 ) 283,307 Selling, general and administrative expenses 19,776 36,206 21,948 (26,044 ) 51,886 Research and development 156 8,873 5,019 — 14,048 Restructuring charges — 3,591 1,095 — 4,686 Write down of long-lived assets — 6,193 — — 6,193 Net (gain) loss on sales and disposals of assets (285 ) 1,023 (563 ) — 175 Total operating costs and expenses 20,413 392,548 346,024 (398,690 ) 360,295 Operating income (loss) (20,413 ) 38,491 (6,131 ) 1 11,948 Non-operating (income) expense: Interest income — 3 (12 ) — (9 ) Interest expense 18,819 778 236 — 19,833 Change in value of NEC TOKIN option — 10,400 — — 10,400 Other (income) expense, net (18,193 ) 17,885 (2,991 ) — (3,299 ) Equity in earnings of subsidiaries (3,836 ) — — 3,836 — Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN (17,203 ) 9,425 (3,364 ) (3,835 ) (14,977 ) Income tax expense (benefit) — 57 2,573 — 2,630 Income (loss) from continuing operations before equity income (loss) from NEC TOKIN (17,203 ) 9,368 (5,937 ) (3,835 ) (17,607 ) Equity income (loss) from NEC TOKIN — 404 — — 404 Net income (loss) $ (17,203 ) $ 9,772 $ (5,937 ) $ (3,835 ) $ (17,203 ) Condensed Consolidating Statement of Operations For the Six-Month Period Ended September 30, 2015 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Net sales $ — $ 444,540 $ 357,073 $ (427,900 ) $ 373,713 Operating costs and expenses: Cost of sales 699 354,984 333,952 (398,441 ) 291,194 Selling, general and administrative expenses 18,722 39,990 24,125 (29,459 ) 53,378 Research and development (53 ) 8,602 3,877 — 12,426 Restructuring charges — 1,456 391 — 1,847 Net (gain) loss on sales and disposals of assets (7 ) (753 ) 398 — (362 ) Total operating costs and expenses 19,361 404,279 362,743 (427,900 ) 358,483 Operating income (loss) (19,361 ) 40,261 (5,670 ) — 15,230 Non-operating (income) expense: Interest income — — (6 ) — (6 ) Interest expense 18,934 598 292 — 19,824 Change in value of NEC TOKIN option — 27,000 — — 27,000 Other (income) expense, net (17,553 ) 17,068 (690 ) — (1,175 ) Equity in earnings of subsidiaries 9,114 — — (9,114 ) — Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN (29,856 ) (4,405 ) (5,266 ) 9,114 (30,413 ) Income tax expense (benefit) — (364 ) 1,554 — 1,190 Income (loss) from continuing operations before equity income (loss) from NEC TOKIN (29,856 ) (4,041 ) (6,820 ) 9,114 (31,603 ) Equity income (loss) from NEC TOKIN — 1,747 — — 1,747 Net income (loss) $ (29,856 ) $ (2,294 ) $ (6,820 ) $ 9,114 $ (29,856 ) Condensed Consolidating Statement of Operations For the Quarter Ended September 30, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Net sales $ — $ 217,526 $ 169,343 $ (199,561 ) $ 187,308 Operating costs and expenses: Cost of sales 489 169,559 157,295 (186,448 ) 140,895 Selling, general and administrative expenses 9,631 18,717 10,738 (13,114 ) 25,972 Research and development 91 4,499 2,526 — 7,116 Restructuring charges — 3,452 546 — 3,998 Write down of long-lived assets — 6,193 — — 6,193 Net (gain) loss on sales and disposals of assets (285 ) 634 (265 ) — 84 Total operating costs and expenses 9,926 203,054 170,840 (199,562 ) 184,258 Operating income (loss) (9,926 ) 14,472 (1,497 ) 1 3,050 Non-operating (income) expense: Interest income — — (6 ) — (6 ) Interest expense 9,396 379 135 — 9,910 Change in value of NEC TOKIN option — (1,600 ) — — (1,600 ) Other (income) expense, net (8,843 ) 8,469 (531 ) — (905 ) Equity in earnings of subsidiaries (5,481 ) — — 5,481 — Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN (4,998 ) 7,224 (1,095 ) (5,480 ) (4,349 ) Income tax expense (benefit) — 19 811 — 830 Income (loss) from continuing operations before equity income (loss) from NEC TOKIN (4,998 ) 7,205 (1,906 ) (5,480 ) (5,179 ) Equity income (loss) from NEC TOKIN — 181 — — 181 Net income (loss) $ (4,998 ) $ 7,386 $ (1,906 ) $ (5,480 ) $ (4,998 ) Condensed Consolidating Statement of Operations For the Quarter Ended September 30, 2015 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Net sales $ — $ 222,770 $ 175,473 $ (212,120 ) $ 186,123 Operating costs and expenses: Cost of sales 521 173,470 167,722 (198,396 ) 143,317 Selling, general and administrative expenses 8,906 16,511 11,255 (13,724 ) 22,948 Research and development 66 4,218 1,868 — 6,152 Restructuring charges — 941 (918 ) — 23 Net (gain) loss on sales and disposals of assets (7 ) (400 ) 103 — (304 ) Total operating costs and expenses 9,486 194,740 180,030 (212,120 ) 172,136 Operating income (loss) (9,486 ) 28,030 (4,557 ) — 13,987 Non-operating (income) expense: Interest income — — (3 ) — (3 ) Interest expense 9,465 265 81 — 9,811 Change in value of NEC TOKIN option — (2,200 ) — — (2,200 ) Other (income) expense, net (8,466 ) 9,265 (2,890 ) — (2,091 ) Equity in earnings of subsidiaries (17,679 ) — — 17,679 — Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN 7,194 20,700 (1,745 ) (17,679 ) 8,470 Income tax expense (benefit) — 123 1,315 — 1,438 Income (loss) from continuing operations before equity income (loss) from NEC TOKIN 7,194 20,577 (3,060 ) (17,679 ) 7,032 Equity income (loss) from NEC TOKIN — 162 — — 162 Net income (loss) $ 7,194 $ 20,739 $ (3,060 ) $ (17,679 ) $ 7,194
Condensed Statement of Comprehensive Income	Condensed Consolidating Statements of Comprehensive Income (Loss) For the Quarter Ended September 30, 2015 (Unaudited) Comprehensive income (loss) $ 7,277 $ 16,222 $ (7,330 ) $ (17,679 ) $ (1,510 ) Condensed Consolidating Statements of Comprehensive Income (Loss) For the Six-Month Period Ended September 30, 2015 (Unaudited) Comprehensive income (loss) $ (27,224 ) $ (11,713 ) $ (6,624 ) $ 9,114 $ (36,447 ) Condensed Consolidating Statements of Comprehensive Income (Loss) Quarter Ended September 30, 2016 (Unaudited) Comprehensive income (loss) $ (4,648 ) $ 6,190 $ (2,648 ) $ (5,480 ) $ (6,586 ) Condensed Consolidating Statements of Comprehensive Income (Loss) For the Six-Month Period Ended September 30, 2016 (Unaudited) Comprehensive income (loss) $ (18,531 ) $ 2,503 $ (11,442 ) $ (3,835 ) $ (31,305 )
Condensed Consolidating Statement of Cash Flows	Condensed Consolidating Statement of Cash Flows For the Six-Month Period Ended September 30, 2016 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Sources (uses) of cash and cash equivalents Net cash provided by (used in) operating activities $ 2,481 $ 14,940 $ 5,622 $ — $ 23,043 Investing activities: Capital expenditures — (2,750 ) (7,594 ) — (10,344 ) Net cash used in investing activities — (2,750 ) (7,594 ) — (10,344 ) Financing activities: Payments of long-term debt (1,870 ) — — — (1,870 ) Purchase of treasury stock (628 ) — — — (628 ) Net cash provided by (used in) financing activities (2,498 ) — — — (2,498 ) Net increase (decrease) in cash and cash equivalents (17 ) 12,190 (1,972 ) — 10,201 Effect of foreign currency fluctuations on cash — — (452 ) — (452 ) Cash and cash equivalents at beginning of fiscal period 640 36,209 28,155 — 65,004 Cash and cash equivalents at end of fiscal period $ 623 $ 48,399 $ 25,731 $ — $ 74,753 Condensed Consolidating Statements of Cash Flows For the Six-Month Period Ended September 30, 2015 (Unaudited) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Reclassifications and Eliminations Consolidated Sources (uses) of cash and cash equivalents Net cash provided by (used in) operating activities $ 575 $ (6,284 ) $ (5,223 ) $ — $ (10,932 ) Investing activities: Capital expenditures — (4,630 ) (4,638 ) — (9,268 ) Proceeds from sale of assets — 247 — — 247 Acquisitions, net of cash received — (2,892 ) — — (2,892 ) Net cash used in investing activities — (7,275 ) (4,638 ) — (11,913 ) Financing activities: Proceeds from revolving line of credit — 6,000 2,000 — 8,000 Payments of revolving line of credit — (3,500 ) — — (3,500 ) Payments of long-term debt — — (481 ) — (481 ) Purchase of treasury stock (575 ) — — — (575 ) Net cash provided by (used in) financing activities (575 ) 2,500 1,519 — 3,444 Net increase (decrease) in cash and cash equivalents — (11,059 ) (8,342 ) — (19,401 ) Effect of foreign currency fluctuations on cash — — 354 — 354 Cash and cash equivalents at beginning of fiscal period 640 33,094 22,628 — 56,362 Cash and cash equivalents at end of fiscal period $ 640 $ 22,035 $ 14,640 $ — $ 37,315

Basis of Financial Statement 33

Basis of Financial Statement Presentation (Details) - USD ($) shares in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2016
Segment Reporting, Other Significant Reconciling Item, Consolidated [Abstract]
Other assets					$ 3,068,000
Total assets	$ 676,975,000		$ 676,975,000		699,780,000
Long-term debt, less current portion	386,098,000		386,098,000		385,833,000
Total liabilities and stockholders’ equity	676,975,000		676,975,000		699,780,000
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Money markets	640,000		640,000		738,000
Total debt	(386,098,000)		(386,098,000)		(387,833,000)
NEC TOKIN option, net	(31,000,000)		(31,000,000)		(20,600,000)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Change in value of NEC TOKIN option	(1,600,000)	$ (2,200,000)	10,400,000	$ 27,000,000
Inventory, Gross [Abstract]
Raw materials and supplies	75,211,000		75,211,000		80,289,000
Work in process	50,081,000		50,081,000		46,631,000
Finished goods	55,698,000		55,698,000		58,060,000
Inventory, gross	180,990,000		180,990,000		184,980,000
Inventory reserves	(16,013,000)		(16,013,000)		(16,101,000)
Inventories, net	$ 164,977,000		$ 164,977,000		$ 168,879,000
Warrant
Number of shares subject to a warrant held by K Equity, LLC	8.4		8.4		8.4
Revenue Recognition
Maximum Percentage of Purchased Inventory that Can be Returned by Distributor			6.00%
Period of product warranty			1 year
Warranty costs as a percentage of net sales, maximum	1.00%	1.00%	1.00%	1.00%
Recurring
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Total debt, fair value	$ (384,352,000)		$ (384,352,000)		$ (284,261,000)
NEC TOKIN option, net, fair value	(31,000,000)		(31,000,000)		(20,600,000)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance			(20,600,000)
Change in value of NEC TOKIN option			(10,400,000)
Ending balance	(31,000,000)		(31,000,000)
Recurring | Money Market Funds [Member]
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Money markets, fair value	640,000		640,000		738,000
Recurring | Level 1
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Total debt, fair value	(354,987,000)		(354,987,000)		(254,713,000)
Recurring | Level 1 | Money Market Funds [Member]
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Money markets, fair value	640,000		640,000		738,000
Recurring | Level 2
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Total debt, fair value	(29,365,000)		(29,365,000)		(29,548,000)
Recurring | Level 2 | Money Market Funds [Member]
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Money markets, fair value	0		0		0
Recurring | Level 3
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Total debt, fair value	0		0		0
NEC TOKIN option, net, fair value	(31,000,000)		(31,000,000)		(20,600,000)
Recurring | Level 3 | Money Market Funds [Member]
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
Money markets, fair value	$ 0		$ 0		0
Restatement Adjustment [Member] | Accounting Standards Update 2015-03 [Member]
Segment Reporting, Other Significant Reconciling Item, Consolidated [Abstract]
Other assets					(2,764,000)
Total assets					(2,764,000)
Long-term debt, less current portion					(2,764,000)
Total liabilities and stockholders’ equity					(2,764,000)
Scenario, Previously Reported [Member]
Segment Reporting, Other Significant Reconciling Item, Consolidated [Abstract]
Other assets					5,832,000
Total assets					702,544,000
Long-term debt, less current portion					388,597,000
Total liabilities and stockholders’ equity					702,544,000
New Accounting Pronouncement, Early Adoption, Effect [Member] | Retained Earnings [Member] | Accounting Standards Update 2016-09 [Member]
Fair Value Measurement
Cumulative effect of new accounting principle in period of adoption					$ 130,000

Debt (Details)

Debt (Details) - USD ($)	3 Months Ended				6 Months Ended
	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Sep. 30, 2015	May 02, 2016
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	$ 386,098,000	$ 387,833,000			$ 386,098,000
Revolving line of credit	33,881,000	33,881,000			33,881,000
Current maturities	0	(2,000,000)			0
Total long-term debt	386,098,000	385,833,000			386,098,000
Amortization of financing and debt discount		(1,000,000)			(800,000)
Interest expense
Contractual interest expense	9,688,000		$ 9,784,000		19,398,000	$ 19,570,000
Capitalized interest	(51,000)		(236,000)		(103,000)	(276,000)
Amortization of debt issuance costs	348,000		348,000		696,000	696,000
Amortization of debt (premium) discount	(200,000)		(185,000)		(399,000)	(366,000)
Imputed interest on acquisition-related obligations	40,000		54,000		81,000	107,000
Interest expense on capital lease	85,000		46,000		160,000	93,000
Total interest expense	9,910,000		$ 9,811,000		19,833,000	19,824,000
Line of Credit Facility [Abstract]
Additional Borrowings					0
Repayments					0	$ 3,500,000
10.5% Senior Notes, net [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	352,217,000	353,952,000			$ 352,217,000
Amortization of financing and debt discount	$ (783,000)			$ (1,047,000)
Line of Credit Facility [Abstract]
Rate	10.50%				10.50%
Long-term Debt, Unclassified [Abstract]
Repayments of debt					$ 2,000,000
Long-term debt outstanding	$ 353,000,000	354,999,000			353,000,000
Interest payable	15,444,000	15,500,000			15,444,000
Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Current borrowing capacity							$ 65,000,000
Remaining borrowing capacity	31,100,000				31,100,000
Domestic Line of Credit [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Revolving line of credit	$ 19,881,000	19,881,000			19,881,000
Line of Credit Facility [Abstract]
Additional Borrowings					0
Repayments					$ 0
Domestic Line of Credit [Member] | Base Rate [Member]
Line of Credit Facility [Abstract]
Rate	4.75%				4.75%
Foreign Line of Credit [Member]
Line of Credit Facility [Abstract]
Additional Borrowings					$ 0
Foreign Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Abstract]
Basis spread on variable rate					2.50%
Foreign Line of Credit [Member] | Letter of Credit One [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Revolving line of credit	$ 12,000,000	$ 12,000,000			$ 12,000,000
Foreign Line of Credit [Member] | Letter of Credit One [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Abstract]
Rate	3.375%				3.375%
Foreign Line of Credit [Member] | Letter of Credit Two [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Revolving line of credit	$ 2,000,000				$ 2,000,000
Foreign Line of Credit [Member] | Letter of Credit Two [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Abstract]
Rate	3.375%				3.375%
US Facility [Member] | Base Rate [Member]
Line of Credit Facility [Abstract]
Basis spread on variable rate					1.50%

Impairment charges (Details)

Impairment charges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Property, Plant and Equipment [Line Items]
Write down of long-lived assets	$ 6,193	$ 0	$ 6,193	$ 0
Film and Electrolytic
Property, Plant and Equipment [Line Items]
Write down of long-lived assets	4,100
Impairment of long-lived assets to be disposed of	3,000
Impairment of Intangible assets	1,100
Solid Capacitors
Property, Plant and Equipment [Line Items]
Write down of long-lived assets	2,100
Solid Capacitors | Facility Closing [Member]
Property, Plant and Equipment [Line Items]
Restructuring and related cost, expected cost remaining	$ 1,200		$ 1,200

Restructuring Charges (Details)

Restructuring Charges (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Sep. 30, 2016USD ($)employee	Sep. 30, 2015USD ($)	Dec. 31, 2014employee	Sep. 30, 2016USD ($)employee	Sep. 30, 2015USD ($)
Restructuring Charges
Restructuring charges	$ 3,998	$ 23		$ 4,686	$ 1,847
Reconciliation of restructuring liability
Costs charged to expense	3,998	23		4,686	1,847
Employee Severance
Restructuring Charges
Restructuring charges	$ 1,432	(434)		$ 2,079	1,110
Expected number of positions eliminated | employee			50
Number of positions eliminated, inception to date | employee	24			24
Reconciliation of restructuring liability
Beginning of period	$ 1,079	6,555		$ 976	7,239
Costs charged to expense	1,432	(434)		2,079	1,110
Costs paid or settled	(408)	(3,843)		(931)	(6,283)
Change in foreign exchange	(2)	2		(23)	214
End of period	2,101	2,280		2,101	2,280
Employee Severance | Tennessee
Restructuring Charges
Restructuring charges	400			400
Reconciliation of restructuring liability
Costs charged to expense	400			400
Employee Severance | Mexico | Solid Capacitors
Restructuring Charges
Restructuring charges	400	500		500	800
Reconciliation of restructuring liability
Costs charged to expense	400	500		500	800
Employee Severance | Mexico | K-Salt
Restructuring Charges
Restructuring charges	100			100
Reconciliation of restructuring liability
Costs charged to expense	100			100
Employee Severance | Florida
Restructuring Charges
Restructuring charges	300			300
Reconciliation of restructuring liability
Costs charged to expense	300			300
Employee Severance | England
Restructuring Charges
Restructuring charges	200			200
Reconciliation of restructuring liability
Costs charged to expense	200			200
Employee Severance | Sweden
Restructuring Charges
Restructuring charges				300
Reconciliation of restructuring liability
Costs charged to expense				300
Employee Severance | Europe
Restructuring Charges
Restructuring charges				200	400
Reconciliation of restructuring liability
Costs charged to expense				200	400
Employee Severance | Italy
Restructuring Charges
Restructuring accrual adjustment		(1,200)			(1,200)
Employee Severance | Europe and North America
Restructuring Charges
Restructuring charges		200			400
Reconciliation of restructuring liability
Costs charged to expense		200			400
Employee Severance | China | Film and Electrolytic
Restructuring Charges
Restructuring charges					600
Reconciliation of restructuring liability
Costs charged to expense					600
Manufacturing Relocation
Restructuring Charges
Restructuring charges	2,566	457		2,607	737
Reconciliation of restructuring liability
Beginning of period	0	0		0	0
Costs charged to expense	2,566	457		2,607	737
Costs paid or settled	(584)	(457)		(625)	(737)
Change in foreign exchange	0	0		0	0
End of period	1,982	$ 0		1,982	$ 0
Manufacturing Relocation | Film and Electrolytic
Restructuring Charges
Restructuring charges	300			300
Reconciliation of restructuring liability
Costs charged to expense	300			300
Manufacturing Relocation | Tennessee
Restructuring Charges
Restructuring charges	2,200			2,200
Reconciliation of restructuring liability
Costs charged to expense	2,200			2,200
Manufacturing Relocation | South Carolina
Restructuring Charges
Restructuring charges	100			100
Reconciliation of restructuring liability
Costs charged to expense	$ 100			$ 100

Comprehensive Income (Loss) a37

Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period			$ 112,481
Balance at the end of the period	$ 82,880		82,880
Net Accumulated Other Comprehensive Income (Loss)
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(43,939)	$ (26,683)	(31,425)	$ (28,796)
Other comprehensive income (loss) before reclassifications	(2,849)	(9,882)	(17,237)	(8,400)
Amounts reclassified out of AOCI	1,261	1,178	3,135	1,809
Other comprehensive income (loss)	(1,588)	(8,704)	(14,102)	(6,591)
Balance at the end of the period	(45,527)	(35,387)	(45,527)	(35,387)
Foreign Currency Translation
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(16,658)	(6,267)	(10,272)	(12,132)
Other comprehensive income (loss) before reclassifications	(689)	(4,466)	(7,075)	1,399
Other comprehensive income (loss)	(689)	(4,466)	(7,075)	1,399
Balance at the end of the period	(17,347)	(10,733)	(17,347)	(10,733)
Post-Retirement Benefit Plan Adjustments
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	1,072	1,119	1,114	1,159
Amounts reclassified out of AOCI	(43)	(39)	(85)	(79)
Other comprehensive income (loss)	(43)	(39)	(85)	(79)
Balance at the end of the period	1,029	1,080	1,029	1,080
Defined Benefit Pension Plans, Net of Tax
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(14,998)	(20,196)	(15,161)	(20,363)
Amounts reclassified out of AOCI	164	245	327	412
Other comprehensive income (loss)	164	245	327	412
Balance at the end of the period	(14,834)	(19,951)	(14,834)	(19,951)
Accumulated tax expense (benefit)			2,000	2,200
Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss)
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(12,123)	605	(6,739)	1,537
Other comprehensive income (loss) before reclassifications	(179)	(3,674)	(5,563)	(4,606)
Other comprehensive income (loss)	(179)	(3,674)	(5,563)	(4,606)
Balance at the end of the period	(12,302)	(3,069)	(12,302)	(3,069)
Foreign Exchange Contracts
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(1,232)	(1,944)	(367)	1,003
Other comprehensive income (loss) before reclassifications	(1,981)	(1,742)	(4,599)	(5,193)
Amounts reclassified out of AOCI	1,140	972	2,893	1,476
Other comprehensive income (loss)	(841)	(770)	(1,706)	(3,717)
Balance at the end of the period	$ (2,073)	$ (2,714)	$ (2,073)	$ (2,714)

Investment in NEC TOKIN - Stock

Investment in NEC TOKIN - Stock Purchase Agreement (Details) $ in Thousands	Feb. 01, 2013USD ($)director_position	Sep. 30, 2016USD ($)number_of_times	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)number_of_times	Sep. 30, 2015USD ($)	Apr. 30, 2015number_of_times	Mar. 31, 2016USD ($)	Mar. 12, 2012
Schedule of Equity Method Investments [Line Items]
Change in value of NEC TOKIN option		$ 1,600	$ 2,200	$ (10,400)	$ (27,000)
Derivative Assets (Liabilities), at Fair Value, Net		$ (31,000)		(31,000)			$ (20,600)
Recurring
Schedule of Equity Method Investments [Line Items]
Change in value of NEC TOKIN option				$ 10,400
Senior Notes [Member]
Schedule of Equity Method Investments [Line Items]
Rate		10.50%		10.50%
NEC TOKIN Corporation [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage		34.00%	34.00%	34.00%	34.00%
NEC TOKIN Corporation [Member] | Stockholders Agreement [Member]
Schedule of Equity Method Investments [Line Items]
Number of Director Positions | director_position	7
NEC TOKIN Corporation [Member] | Put Option [Member]
Schedule of Equity Method Investments [Line Items]
Derivative Assets (Liabilities), at Fair Value, Net		$ (31,000)		$ (31,000)			$ (20,600)
NEC TOKIN Corporation [Member] | Put Option [Member] | Recurring | Level 3
Schedule of Equity Method Investments [Line Items]
Change in value of NEC TOKIN option		1,600		(10,400)
NEC TOKIN Corporation [Member] | KEMET Electronics Corporation [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Aggregate Cost	$ 54,500
Business Acquisition, Transaction Costs	4,500
NEC TOKIN Corporation [Member] | KEMET Electronics Corporation [Member] | Stock Purchase Agreement [Member]
Schedule of Equity Method Investments [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired								51.00%
Equity Method Investment, Ownership Percentage								34.00%
Payments to Acquire Businesses, Gross	50,000
Payments to Acquire Equity Method Investments	$ 50,000
NEC TOKIN Corporation [Member] | KEMET Electronics Corporation [Member] | Stockholders Agreement [Member]
Schedule of Equity Method Investments [Line Items]
Number of Director Positions | director_position	4
NEC TOKIN Corporation [Member] | KEMET Electronics Corporation [Member] | Option Agreement [Member]
Schedule of Equity Method Investments [Line Items]
Business Acquisition Potential Future Purchase Price		$ 50,000		$ 50,000
Economic Ownership, Percentage of Ownership After Transaction						49.00%
Sale of Stock, Percentage of Ownership after Transaction						51.00%
Business Acquisition Contingent Consideration Multiple Applied to LTMEBITDA to Determine Purchase Price | number_of_times						6
NEC TOKIN Corporation [Member] | KEMET Electronics Corporation [Member] | Put Option [Member]
Schedule of Equity Method Investments [Line Items]
Business Acquisition Contingent Consideration Multiple Applied to LTMEBITDA to Determine Purchase Price | number_of_times		6		6

Investment in NEC TOKIN - Summa

Investment in NEC TOKIN - Summarized Financial Information (Details) - NEC TOKIN Corporation [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2016
Equity Method Investment, Summarized Financial Information, Assets [Abstract]
Current assets	$ 249,818		$ 249,818		$ 240,427
Non-current assets	258,333		258,333		260,614
Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract]
Current liabilities	171,193		171,193		179,360
Non-current liabilities	368,011		368,011		$ 335,500
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Sales	126,589	$ 117,358	247,099	$ 232,092
Gross profit	27,055	25,055	53,601	49,723
Net income (loss)	$ 2,012	$ 2,007	$ 4,362	$ 7,261

Investment in NEC TOKIN - Equit

Investment in NEC TOKIN - Equity Method Investment Income (Loss) Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	$ 181	$ 162	$ 404	$ 1,747
NEC TOKIN Corporation [Member]
Schedule of Equity Method Investments [Line Items]
Net income (loss)	$ 2,012	$ 2,007	$ 4,362	$ 7,261
KEC’s economic interest %	34.00%	34.00%	34.00%	34.00%
Equity Method Investment, Equity Income (Loss) Before Adjustments	$ 684	$ 682	$ 1,483	$ 2,469
Amortization and depreciation	(581)	(488)	(1,125)	(624)
Equity Method investment, Inventory Profit Elimination	78	(32)	46	(98)
Income (Loss) from Equity Method Investments	$ 181	$ 162	$ 404	$ 1,747

Investment in NEC TOKIN - Equ41

Investment in NEC TOKIN - Equity Method Investment Reconciliation (Details) BRL in Thousands, $ in Thousands, ¥ in Millions, TWD in Millions	Jul. 26, 2016USD ($)	Jul. 26, 2016BRL	May 02, 2016USD ($)suitinstallment	Mar. 29, 2016USD ($)	Mar. 29, 2016JPY (¥)	Dec. 09, 2015USD ($)	Dec. 09, 2015TWD	Sep. 02, 2015USD ($)installment	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Mar. 31, 2016USD ($)
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity [Abstract]
Investment in NEC TOKIN									$ 15,174		$ 15,174		$ 20,334
NEC TOKIN Corporation [Member]
Related Party Transactions [Abstract]
Loss Contingency Accrual									72,700		72,700
KEMET Electronics Corporation [Member]
Related Party Transactions [Abstract]
Business Combination, Indemnification Assets, Range of Outcomes, Value, Low									8,500		8,500
Stockholders Agreement [Member] | KEMET Electronics Corporation [Member]
Related Party Transactions [Abstract]
Receivable balances									649		649		748
Equity Method Investments [Member] | Stockholders Agreement [Member]
Related Party Transactions [Abstract]
Business Combination, Indemnification Assets, Range of Outcomes, Value, Low									25,000		25,000
Indemnification Agreement [Member] | Equity Method Investments [Member]
Related Party Transactions [Abstract]
Litigation Settlement, Amount								$ (13,800)
Indemnification Agreement [Member] | Equity Method Investments [Member] | NEC TOKIN Corporation [Member]
Related Party Transactions [Abstract]
Litigation Settlement, Amount			$ (37,300)
Litigation Settlement, Number of Payment Installments | installment			5
Litigation Settlement, Number of Annual Payment Installments | installment			3
Settled Litigation [Member] | Indemnification Agreement [Member] | Equity Method Investments [Member]
Related Party Transactions [Abstract]
Litigation Settlement, Amount								$ (2,300)
Litigation Settlement, Payment Period								5 years
Litigation Settlement, Number of Payment Installments | installment								6
Preliminary Settlement [Member] | Indemnification Agreement [Member] | Equity Method Investments [Member] | NEC TOKIN Corporation [Member]
Related Party Transactions [Abstract]
Loss Contingency, Pending Claims, Number | suit			2
TAIWAN, PROVINCE OF CHINA | Taiwan, New Dollars
Related Party Transactions [Abstract]
Loss Contingency, Damages Sought, Value | TWD							TWD 1,218.2
TAIWAN, PROVINCE OF CHINA | Taiwan, New Dollars | Minimum
Related Party Transactions [Abstract]
Loss Contingency, Damages Sought, Value | TWD							TWD 609.1
TAIWAN, PROVINCE OF CHINA | United States of America, Dollars
Related Party Transactions [Abstract]
Loss Contingency, Damages Sought, Value						$ 38,800
TAIWAN, PROVINCE OF CHINA | United States of America, Dollars | Minimum
Related Party Transactions [Abstract]
Loss Contingency, Damages Sought, Value						$ 19,400
JAPAN | United States of America, Dollars
Related Party Transactions [Abstract]
Litigation Settlement, Amount				$ (1,300)
JAPAN | Japan, Yen
Related Party Transactions [Abstract]
Litigation Settlement, Amount | ¥					¥ (127.2)
BRAZIL | Settled Litigation [Member]
Related Party Transactions [Abstract]
Loss Contingency, Damages Paid, Value	$ 200	BRL 601
NEC TOKIN Corporation [Member]
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity [Abstract]
Investment in NEC TOKIN									15,174		15,174		20,334
Property, plant and equipment (1)									3,565		3,565		3,365
Technology (1)									(10,413)		(10,413)		(10,134)
Long-term debt (1)									(1,684)		(1,684)		(1,975)
Goodwill									(8,377)		(8,377)		(7,555)
Indemnity asset for legal investigation									(8,500)		(8,500)		(8,500)
Inventory profit elimination (2)									326		326		371
Other									(650)		(650)		(604)
KEC’s 34% economic interest in NEC TOKIN’s net assets									(10,559)		(10,559)		(4,698)
Related Party Transactions [Abstract]
Sales to NEC TOKIN									5,135	$ 4,474	8,282	$ 9,330
NEC TOKIN's sales to KEMET									1,889	$ 2,112	3,761	$ 3,590
Accounts receivable									3,708		3,708		5,220
Accounts payable									$ 792		$ 792		$ 1,019
KEC’s economic interest %									34.00%	34.00%	34.00%	34.00%

Segment and Geographic Inform42

Segment and Geographic Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)business_groupmanufacturing_site	Sep. 30, 2015USD ($)
Segment and geographic information
Number of business groups | business_group			2
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	$ 187,308	$ 186,123	$ 372,243	$ 373,713
Operating income (loss)	3,050	13,987	11,948	15,230
Depreciation and amortization expense	9,440	9,265	18,876	19,182
Restructuring charges	3,998	23	4,686	1,847
Write down of Long-lived Assets	6,193	0	6,193	0
North and South America (“Americas”)
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	56,781	58,080	111,882	114,114
Europe, Middle East, Africa (“EMEA”)
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	60,047	59,458	120,533	121,015
Asia and Pacific Rim (“APAC”)
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	70,480	68,585	139,828	138,584
Operating Income (Loss) [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Restructuring charges	3,998	23	4,686	1,847
Write down of Long-lived Assets	6,193	0	6,193	0
Corporate, Non-Segment [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Operating income (loss)	(25,264)	(22,209)	(49,978)	(51,711)
Depreciation and amortization expense	1,457	1,159	2,760	2,378
Corporate, Non-Segment [Member] | Operating Income (Loss) [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Restructuring charges	325	202	328	508
Write down of Long-lived Assets	0	0	$ 0	0
Solid Capacitors
Segment and geographic information
Number of Manufacturing Sites | manufacturing_site			9
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	142,641	141,284	$ 284,585	280,961
Operating income (loss)	35,410	33,979	70,489	64,012
Depreciation and amortization expense	5,147	5,178	10,565	10,934
Write down of Long-lived Assets	2,100
Solid Capacitors | Operating Income (Loss) [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Restructuring charges	558	570	694	802
Write down of Long-lived Assets	2,076	0	$ 2,076	0
Film and Electrolytic
Segment and geographic information
Number of Manufacturing Sites | manufacturing_site			10
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	44,667	44,839	$ 87,658	92,752
Operating income (loss)	(7,096)	2,217	(8,563)	2,929
Depreciation and amortization expense	2,836	2,928	5,551	5,870
Write down of Long-lived Assets	4,100
Film and Electrolytic | Operating Income (Loss) [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Restructuring charges	3,115	(749)	3,664	537
Write down of Long-lived Assets	$ 4,117	$ 0	$ 4,117	$ 0

Defined Benefit Pension and O43

Defined Benefit Pension and Other Postretirement Benefit Plans (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)plan	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Pension
Defined Benefit Plan Disclosure
Contribution by employer			$ 500
Net periodic benefit (income) costs
Net service cost	$ 347	$ 404		$ 693	$ 1,121
Interest cost	358	338		717	675
Expected return on net assets	(94)	(105)		(188)	(210)
Amortization:
Defined Benefit Plan, Actuarial Gain (Loss)	115	197		230	394
Prior service cost	21	15		42	29
Total net periodic benefit (income) costs	747	849		1,494	2,009
Pension | Maximum
Defined Benefit Plan Disclosure
Estimated employer contribution in current fiscal year			$ 1,700
Pension | Europe
Defined Benefit Plan Disclosure
Defined Benefit Plan, Number of Plans | plan			6
Pension | Singapore
Defined Benefit Plan Disclosure
Defined Benefit Plan, Number of Plans | plan			1
Pension | Mexico
Defined Benefit Plan Disclosure
Defined Benefit Plan, Number of Plans | plan			2
Post-retirement Benefit Plan
Net periodic benefit (income) costs
Net service cost	0	0		0	0
Interest cost	4	6		8	12
Expected return on net assets	0	0		0	0
Amortization:
Defined Benefit Plan, Actuarial Gain (Loss)	(43)	(39)		(85)	(79)
Prior service cost	0	0		0	0
Total net periodic benefit (income) costs	$ (39)	$ (33)		$ (77)	$ (67)

Stock-based Compensation - Narr

Stock-based Compensation - Narrative (Details) - shares	6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	7,400,000
Stock options exercised	0	0
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	10 years
Employee Stock Option [Member] | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Employee Stock Option [Member] | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock Units (RSUs) [Member] | Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of restriction for sale of shares	90 days
Omnibus Equity Incentive Plan 2011 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	6,600,000
Prior Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	800,000
Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	P2Y
Long Term Incentive Plan 2017 2018 [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Long Term Incentive Plan 2016 2017 [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Long Term Incentive Plan 2015 2016 [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Long Term Incentive Plan 2014 2015 [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Long Term Incentive Plan 2013 2014 [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years

Stock-based Compensation - Sche

Stock-based Compensation - Schedule of Award Activity (Details) - $ / shares shares in Thousands	May 18, 2016	Sep. 30, 2016
Restricted Stock Units (RSUs) [Member] | Long Term Incentive Plan 2017 2018 [Member]
Shares
Granted	613
Weighted- average Fair Value on Grant Date
Granted		$ 2.46
Restricted Stock Units (RSUs) [Member] | May 18, 2017 | Long Term Incentive Plan 2017 2018 [Member]
Shares
Granted	202
Restricted Stock Units (RSUs) [Member] | May 18, 2018 | Long Term Incentive Plan 2017 2018 [Member]
Shares
Granted	202
Restricted Stock Units (RSUs) [Member] | May 18, 2019 | Long Term Incentive Plan 2017 2018 [Member]
Shares
Granted	209
Restricted Stock Units, Time-Based Award [Member] | Long Term Incentive Plan 2016 2017 [Member]
Shares
Vested		(187)
Restricted Stock Units, Time-Based Award [Member] | Long Term Incentive Plan 2015 2016 [Member]
Shares
Vested		(111)
Restricted Stock Units, Time-Based Award [Member] | Long Term Incentive Plan 2014 2015 [Member]
Shares
Vested		(130)
Restricted Stock Units, Performance-Based Award [Member] | Long Term Incentive Plan 2016 2017 [Member]
Shares
Vested		0
Restricted Stock Units, Performance-Based Award [Member] | Long Term Incentive Plan 2015 2016 [Member]
Shares
Vested		(103)
Restricted Stock Units, Performance-Based Award [Member] | Long Term Incentive Plan 2014 2015 [Member]
Shares
Vested		(73)
Restricted Stock
Shares
Beginning balance		1,430
Granted		70
Vested		(103)
Forfeited		(13)
Ending balance		1,384
Weighted- average Fair Value on Grant Date
Beginning balance		$ 3.51
Granted		3
Vested		2.22
Forfeited		3.21
Ending balance		$ 3.59

Stock-based Compensation - Allo

Stock-based Compensation - Allocation of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 643	$ 755	$ 1,307	$ 1,456
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	14	55	36	132
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	447	518	989	1,019
Cost of Sales [Member] | Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	196	268	379	496
Cost of Sales [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	7	28	18	61
Cost of Sales [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	98	163	288	315
Selling, General and Administrative Expenses [Member] | Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	404	433	831	891
Selling, General and Administrative Expenses [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	7	26	17	68
Selling, General and Administrative Expenses [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	343	350	690	693
Research and Development Expense [Member] | Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	43	54	97	69
Research and Development Expense [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	0	1	1	3
Research and Development Expense [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 6	$ 5	$ 11	$ 11

Income Taxes (Details)

Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Tax Contingency [Line Items]
Current Income Tax Expense (Benefit)	$ 800,000
Income tax expense (benefit)	830,000	$ 1,438,000	$ 2,630,000	$ 1,190,000
Current Federal Tax Expense (Benefit)	$ 0	0	$ 0	0
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Income tax expense (benefit)		1,300,000		1,600,000
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Income tax expense (benefit)		$ 100,000		200,000
Intellidata [Member]
Income Tax Contingency [Line Items]
Current Income Tax Expense (Benefit)				$ (600,000)

Basic and Diluted Net Income 48

Basic and Diluted Net Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator:
Net income (loss)	$ (4,998)	$ 7,194	$ (17,203)	$ (29,856)
Weighted-average shares outstanding:
Basic (in shares)	46,590	45,767	46,471	45,660
Assumed conversion of employee stock grants (in shares)	0	217	0	0
Assumed conversion of warrants (in shares)	0	4,020	0	0
Diluted (in shares)	46,590	50,004	46,471	45,660
Net income (loss) per basic share (in usd per share)	$ (0.11)	$ 0.16	$ (0.37)	$ (0.65)
Net income (loss) per diluted share (in usd per share)	$ (0.11)	$ 0.14	$ (0.37)	$ (0.65)
Assumed conversion of employee stock grants
Common stock equivalents that could potentially dilute net income per basic share in the future, but were not included in the computation of diluted earnings per share because the impact would have been antidilutive
Common stock equivalents (in shares)	2,596	3,942	2,322	3,507
Assumed conversion of warrants
Common stock equivalents that could potentially dilute net income per basic share in the future, but were not included in the computation of diluted earnings per share because the impact would have been antidilutive
Common stock equivalents (in shares)	5,771	0	5,380	5,305

Derivatives Fair Value (Details

Derivatives Fair Value (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2016USD ($)	Sep. 30, 2016USD ($)
Foreign Exchange Forward [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivative Instrument Detail [Abstract]
Derivative Asset, Fair Value, Gross Asset	$ 0	$ 0
Foreign Exchange Forward [Member] | Accrued Liabilities [Member]
Derivative Instrument Detail [Abstract]
Derivative Liability, Fair Value, Gross Liability	2,073	2,073
Mexico, Pesos
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	34,400	34,400
Sales [Member]
Derivative Instrument Detail [Abstract]
Derivative, Gain (Loss) on Derivative, Net	0	0
Cost of sales
Derivative Instrument Detail [Abstract]
Derivative, Gain (Loss) on Derivative, Net	(1,140)	(2,893)
Operating Expense [Member]
Derivative Instrument Detail [Abstract]
Derivative, Gain (Loss) on Derivative, Net	(1,140)	(2,893)
Operating Income (Loss) [Member]
Derivative Instrument Detail [Abstract]
Derivative, Gain (Loss) on Derivative, Net	$ (1,140)	$ (2,893)

Concentrations of Risks (Detail

Concentrations of Risks (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2016	Mar. 31, 2015
Net revenue | Sales risk
Concentration of Risk
Concentration Risk, Customer	1	1	1	1
Net revenue | Sales risk | Minimum
Concentration of Risk
Concentration risk, percentage	10.00%	10.00%	10.00%	10.00%
Net revenue | Electronics distributor risk
Concentration of Risk
Concentration risk, percentage			46.00%	42.00%
Accounts receivable | Sales risk
Concentration of Risk
Concentration Risk, Customer	0	0	0
Accounts receivable | Sales risk | Maximum
Concentration of Risk
Concentration risk, percentage					10.00%
Accounts receivable | Credit Concentration Risk [Member]
Concentration of Risk
Concentration Risk, Customer						0
Accounts receivable | Credit Concentration Risk [Member] | Maximum
Concentration of Risk
Concentration risk, percentage			10.00%

Condensed Consolidating Finan51

Condensed Consolidating Financial Statements Balance Sheet (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Current assets:
Cash and cash equivalents	$ 74,753	$ 65,004	$ 37,315	$ 56,362	$ 56,362
Accounts receivable, net	88,089	93,168
Intercompany receivable	0	0
Inventories, net	164,977	168,879
Prepaid expenses and other	30,990	25,496
Total current assets	358,809	352,547
Assets, Noncurrent [Abstract]
Property and equipment, net	221,490	241,839
Goodwill	40,294	40,294
Intangible assets, net	30,993	33,301
Investment in NEC TOKIN	15,174	20,334
Investments in subsidiaries	0	0
Deferred income taxes	7,749	8,397
Other assets	2,466	3,068
Long-term intercompany receivable	0	0
Total assets	676,975	699,780
Current liabilities:
Current portion of long-term debt	0	2,000
Accounts payable	64,055	70,981
Intercompany payable	0	0
Accrued expenses	58,015	50,320
Income taxes payable	293	453
Total current liabilities	122,363	123,754
Liabilities, Noncurrent [Abstract]
Long-term debt, less current portion	386,098	385,833
Other non-current obligations	82,640	74,892
Deferred income taxes	2,994	2,820
Long-term intercompany payable	0	0
Stockholders’ equity	82,880	112,481
Total liabilities and stockholders’ equity	676,975	699,780
Reclassifications and Eliminations
Current assets:
Cash and cash equivalents	0	0	0	0
Accounts receivable, net	0	0
Intercompany receivable	(350,243)	(332,957)
Inventories, net	0	0
Prepaid expenses and other	(2,964)	(2,964)
Total current assets	(353,207)	(335,921)
Assets, Noncurrent [Abstract]
Property and equipment, net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Investment in NEC TOKIN	0	0
Investments in subsidiaries	(894,233)	(905,190)
Deferred income taxes	0	0
Other assets	0	0
Long-term intercompany receivable	(107,873)	(110,016)
Total assets	(1,355,313)	(1,351,127)
Current liabilities:
Current portion of long-term debt		0
Accounts payable	0	0
Intercompany payable	(350,243)	(332,957)
Accrued expenses	0	0
Income taxes payable	(2,964)	(2,964)
Total current liabilities	(353,207)	(335,921)
Liabilities, Noncurrent [Abstract]
Long-term debt, less current portion	0	0
Other non-current obligations	0	0
Deferred income taxes	0	0
Long-term intercompany payable	(107,873)	(110,016)
Stockholders’ equity	(894,233)	(905,190)
Total liabilities and stockholders’ equity	(1,355,313)	(1,351,127)
Parent
Current assets:
Cash and cash equivalents	623	640	640	640
Accounts receivable, net	0	0
Intercompany receivable	31,782	30,210
Inventories, net	0	0
Prepaid expenses and other	3,325	3,325
Total current assets	35,730	34,175
Assets, Noncurrent [Abstract]
Property and equipment, net	514	255
Goodwill	0	0
Intangible assets, net	0	0
Investment in NEC TOKIN	0	0
Investments in subsidiaries	373,172	382,108
Deferred income taxes	0	0
Other assets	27	0
Long-term intercompany receivable	66,172	67,500
Total assets	475,615	484,038
Current liabilities:
Current portion of long-term debt		2,000
Accounts payable	29	20
Intercompany payable	23,243	280
Accrued expenses	17,246	17,305
Income taxes payable	0	0
Total current liabilities	40,518	19,605
Liabilities, Noncurrent [Abstract]
Long-term debt, less current portion	352,217	351,952
Other non-current obligations	0	0
Deferred income taxes	0	0
Long-term intercompany payable	0	0
Stockholders’ equity	82,880	112,481
Total liabilities and stockholders’ equity	475,615	484,038
Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	48,399	36,209	22,035	33,094
Accounts receivable, net	32,116	41,025
Intercompany receivable	164,695	132,523
Inventories, net	107,191	113,289
Prepaid expenses and other	18,219	12,161
Total current assets	370,620	335,207
Assets, Noncurrent [Abstract]
Property and equipment, net	82,229	93,936
Goodwill	40,294	40,294
Intangible assets, net	25,357	27,252
Investment in NEC TOKIN	15,174	20,334
Investments in subsidiaries	427,702	429,723
Deferred income taxes	755	800
Other assets	1,643	2,452
Long-term intercompany receivable	40,612	41,428
Total assets	1,004,386	991,426
Current liabilities:
Current portion of long-term debt		0
Accounts payable	33,084	34,618
Intercompany payable	272,187	275,498
Accrued expenses	19,107	11,807
Income taxes payable	2,996	2,983
Total current liabilities	327,374	324,906
Liabilities, Noncurrent [Abstract]
Long-term debt, less current portion	19,881	19,881
Other non-current obligations	35,112	25,797
Deferred income taxes	2,242	2,242
Long-term intercompany payable	66,172	67,500
Stockholders’ equity	553,605	551,100
Total liabilities and stockholders’ equity	$ 1,004,386	991,426
Guarantor Subsidiaries | Reportable legal entities
Condensed Consolidating Balance Sheet
Percentage of ownership interest	100.00%
Non-Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	$ 25,731	28,155	$ 14,640	$ 22,628
Accounts receivable, net	55,973	52,143
Intercompany receivable	153,766	170,224
Inventories, net	57,786	55,590
Prepaid expenses and other	12,410	12,974
Total current assets	305,666	319,086
Assets, Noncurrent [Abstract]
Property and equipment, net	138,747	147,648
Goodwill	0	0
Intangible assets, net	5,636	6,049
Investment in NEC TOKIN	0	0
Investments in subsidiaries	93,359	93,359
Deferred income taxes	6,994	7,597
Other assets	796	616
Long-term intercompany receivable	1,089	1,088
Total assets	552,287	575,443
Current liabilities:
Current portion of long-term debt		0
Accounts payable	30,942	36,343
Intercompany payable	54,813	57,179
Accrued expenses	21,662	21,208
Income taxes payable	261	434
Total current liabilities	107,678	115,164
Liabilities, Noncurrent [Abstract]
Long-term debt, less current portion	14,000	14,000
Other non-current obligations	47,528	49,095
Deferred income taxes	752	578
Long-term intercompany payable	41,701	42,516
Stockholders’ equity	340,628	354,090
Total liabilities and stockholders’ equity	$ 552,287	$ 575,443
10.5% Senior Notes, net [Member]
Condensed Consolidating Balance Sheet
Interest rate of senior notes (as a percent)	10.50%
10.5% Senior Notes, net [Member] | Non-Guarantor Subsidiaries
Condensed Consolidating Balance Sheet
Percentage of capital stock	51.00%

Condensed Consolidating Finan52

Condensed Consolidating Financial Statements Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues [Abstract]
Net sales	$ 187,308	$ 186,123	$ 372,243	$ 373,713
Operating costs and expenses:
Cost of sales	140,895	143,317	283,307	291,194
Selling, general and administrative expenses	25,972	22,948	51,886	53,378
Research and development	7,116	6,152	14,048	12,426
Restructuring charges	3,998	23	4,686	1,847
Write down of long-lived assets	6,193	0	6,193	0
Net (gain) loss on sales and disposals of assets	84	(304)	175	(362)
Total operating costs and expenses	184,258	172,136	360,295	358,483
Operating income (loss)	3,050	13,987	11,948	15,230
Interest income	(6)	(3)	(9)	(6)
Interest expense	9,910	9,811	19,833	19,824
Change in value of NEC TOKIN option	(1,600)	(2,200)	10,400	27,000
Other (income) expense, net	905	2,091	3,299	1,175
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN	(4,349)	8,470	(14,977)	(30,413)
Income tax expense (benefit)	830	1,438	2,630	1,190
Income (loss) from continuing operations before equity income (loss) from NEC TOKIN	(5,179)	7,032	(17,607)	(31,603)
Equity income (loss) from NEC TOKIN	181	162	404	1,747
Net income (loss)	(4,998)	7,194	(17,203)	(29,856)
Reclassifications and Eliminations
Revenues [Abstract]
Net sales	(199,561)	(212,120)	(398,689)	(427,900)
Operating costs and expenses:
Cost of sales	(186,448)	(198,396)	(372,646)	(398,441)
Selling, general and administrative expenses	(13,114)	(13,724)	(26,044)	(29,459)
Research and development	0	0	0	0
Restructuring charges	0	0	0	0
Write down of long-lived assets	0		0
Net (gain) loss on sales and disposals of assets	0	0	0	0
Total operating costs and expenses	(199,562)	(212,120)	(398,690)	(427,900)
Operating income (loss)	1	0	1	0
Interest income	0	0	0	0
Interest expense	0	0	0	0
Change in value of NEC TOKIN option	0
Other (income) expense, net	0	0	0	0
Equity in earnings of subsidiaries	(5,481)	(17,679)	(3,836)	9,114
Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN	(5,480)	(17,679)	(3,835)	9,114
Income tax expense (benefit)	0	0	0	0
Income (loss) from continuing operations before equity income (loss) from NEC TOKIN	(5,480)	(17,679)	(3,835)	9,114
Equity income (loss) from NEC TOKIN	0	0	0	0
Net income (loss)	(5,480)	(17,679)	(3,835)	9,114
Parent
Revenues [Abstract]
Net sales	0	0	0	0
Operating costs and expenses:
Cost of sales	489	521	766	699
Selling, general and administrative expenses	9,631	8,906	19,776	18,722
Research and development	91	66	156	(53)
Restructuring charges	0	0	0	0
Write down of long-lived assets	0		0
Net (gain) loss on sales and disposals of assets	(285)	(7)	(285)	(7)
Total operating costs and expenses	9,926	9,486	20,413	19,361
Operating income (loss)	(9,926)	(9,486)	(20,413)	(19,361)
Interest income	0	0	0	0
Interest expense	9,396	9,465	18,819	18,934
Change in value of NEC TOKIN option	0	0	0	0
Other (income) expense, net	8,843	8,466	18,193	17,553
Equity in earnings of subsidiaries	5,481	17,679	3,836	(9,114)
Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN	(4,998)	7,194	(17,203)	(29,856)
Income tax expense (benefit)	0	0	0	0
Income (loss) from continuing operations before equity income (loss) from NEC TOKIN	(4,998)	7,194	(17,203)	(29,856)
Equity income (loss) from NEC TOKIN	0	0	0	0
Net income (loss)	(4,998)	7,194	(17,203)	(29,856)
Guarantor Subsidiaries
Revenues [Abstract]
Net sales	217,526	222,770	431,039	444,540
Operating costs and expenses:
Cost of sales	169,559	173,470	336,662	354,984
Selling, general and administrative expenses	18,717	16,511	36,206	39,990
Research and development	4,499	4,218	8,873	8,602
Restructuring charges	3,452	941	3,591	1,456
Write down of long-lived assets	6,193		6,193
Net (gain) loss on sales and disposals of assets	634	(400)	1,023	(753)
Total operating costs and expenses	203,054	194,740	392,548	404,279
Operating income (loss)	14,472	28,030	38,491	40,261
Interest income	0	0	3	0
Interest expense	379	265	778	598
Change in value of NEC TOKIN option	(1,600)	(2,200)	10,400	27,000
Other (income) expense, net	(8,469)	(9,265)	(17,885)	(17,068)
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN	7,224	20,700	9,425	(4,405)
Income tax expense (benefit)	19	123	57	(364)
Income (loss) from continuing operations before equity income (loss) from NEC TOKIN	7,205	20,577	9,368	(4,041)
Equity income (loss) from NEC TOKIN	181	162	404	1,747
Net income (loss)	7,386	20,739	9,772	(2,294)
Non-Guarantor Subsidiaries
Revenues [Abstract]
Net sales	169,343	175,473	339,893	357,073
Operating costs and expenses:
Cost of sales	157,295	167,722	318,525	333,952
Selling, general and administrative expenses	10,738	11,255	21,948	24,125
Research and development	2,526	1,868	5,019	3,877
Restructuring charges	546	(918)	1,095	391
Write down of long-lived assets	0		0
Net (gain) loss on sales and disposals of assets	(265)	103	(563)	398
Total operating costs and expenses	170,840	180,030	346,024	362,743
Operating income (loss)	(1,497)	(4,557)	(6,131)	(5,670)
Interest income	(6)	(3)	(12)	(6)
Interest expense	135	81	236	292
Change in value of NEC TOKIN option	0	0	0	0
Other (income) expense, net	531	2,890	2,991	690
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) from continuing operations before income taxes and equity income (loss) from NEC TOKIN	(1,095)	(1,745)	(3,364)	(5,266)
Income tax expense (benefit)	811	1,315	2,573	1,554
Income (loss) from continuing operations before equity income (loss) from NEC TOKIN	(1,906)	(3,060)	(5,937)	(6,820)
Equity income (loss) from NEC TOKIN	0	0	0	0
Net income (loss)	$ (1,906)	$ (3,060)	$ (5,937)	$ (6,820)

Condensed Consolidating Finan53

Condensed Consolidating Financial Statements Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	$ (6,586)	$ (1,510)	$ (31,305)	$ (36,447)
Reclassifications and Eliminations
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	(5,480)	(17,679)	(3,835)	9,114
Parent
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	(4,648)	7,277	(18,531)	(27,224)
Guarantor Subsidiaries
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	6,190	16,222	2,503	(11,713)
Non-Guarantor Subsidiaries
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	$ (2,648)	$ (7,330)	$ (11,442)	$ (6,624)

Condensed Consolidating Finan54

Condensed Consolidating Financial Statements Cash Flow (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating Activities:
Net cash provided by (used in) operating activities	$ 23,043	$ (10,932)
Investing activities:
Capital expenditures	(10,344)	(9,268)
Proceeds from sale of assets	0	247
Acquisitions, net of cash received	0	(2,892)
Net cash provided by (used in) investing activities	(10,344)	(11,913)
Financing activities:
Proceeds from revolving line of credit	0	8,000
Payments of revolving line of credit	0	(3,500)
Payments on long-term debt	(1,870)	(481)
Purchase of treasury stock	(628)	(575)
Net cash provided by (used in) financing activities	(2,498)	3,444
Net increase (decrease) in cash and cash equivalents	10,201	(19,401)
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign currency fluctuations on cash	(452)	354
Cash and cash equivalents at beginning of fiscal period	65,004	56,362
Cash and cash equivalents at end of fiscal period	74,753	37,315
Reclassifications and Eliminations
Operating Activities:
Net cash provided by (used in) operating activities	0	0
Investing activities:
Capital expenditures	0	0
Proceeds from sale of assets		0
Acquisitions, net of cash received		0
Net cash provided by (used in) investing activities	0	0
Financing activities:
Proceeds from revolving line of credit		0
Payments of revolving line of credit		0
Payments on long-term debt	0	0
Purchase of treasury stock	0	0
Net cash provided by (used in) financing activities	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign currency fluctuations on cash	0	0
Cash and cash equivalents at beginning of fiscal period	0
Cash and cash equivalents at end of fiscal period	0	0
Parent
Operating Activities:
Net cash provided by (used in) operating activities	2,481	575
Investing activities:
Capital expenditures	0	0
Proceeds from sale of assets		0
Acquisitions, net of cash received		0
Net cash provided by (used in) investing activities	0	0
Financing activities:
Proceeds from revolving line of credit		0
Payments of revolving line of credit		0
Payments on long-term debt	(1,870)	0
Purchase of treasury stock	(628)	(575)
Net cash provided by (used in) financing activities	(2,498)	(575)
Net increase (decrease) in cash and cash equivalents	(17)	0
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign currency fluctuations on cash	0	0
Cash and cash equivalents at beginning of fiscal period	640
Cash and cash equivalents at end of fiscal period	623	640
Guarantor Subsidiaries
Operating Activities:
Net cash provided by (used in) operating activities	14,940	(6,284)
Investing activities:
Capital expenditures	(2,750)	(4,630)
Proceeds from sale of assets		247
Acquisitions, net of cash received		(2,892)
Net cash provided by (used in) investing activities	(2,750)	(7,275)
Financing activities:
Proceeds from revolving line of credit		6,000
Payments of revolving line of credit		(3,500)
Payments on long-term debt	0	0
Purchase of treasury stock	0	0
Net cash provided by (used in) financing activities	0	2,500
Net increase (decrease) in cash and cash equivalents	12,190	(11,059)
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign currency fluctuations on cash	0	0
Cash and cash equivalents at beginning of fiscal period	36,209
Cash and cash equivalents at end of fiscal period	48,399	22,035
Non-Guarantor Subsidiaries
Operating Activities:
Net cash provided by (used in) operating activities	5,622	(5,223)
Investing activities:
Capital expenditures	(7,594)	(4,638)
Proceeds from sale of assets		0
Acquisitions, net of cash received		0
Net cash provided by (used in) investing activities	(7,594)	(4,638)
Financing activities:
Proceeds from revolving line of credit		2,000
Payments of revolving line of credit		0
Payments on long-term debt	0	(481)
Purchase of treasury stock	0	0
Net cash provided by (used in) financing activities	0	1,519
Net increase (decrease) in cash and cash equivalents	(1,972)	(8,342)
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign currency fluctuations on cash	(452)	354
Cash and cash equivalents at beginning of fiscal period	28,155
Cash and cash equivalents at end of fiscal period	$ 25,731	$ 14,640