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Debt | 12 Months Ended
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Mar. 31, 2013
Debt | 8. Debt Summary of Long-Term Debt The following summarizes the Company’s long-term debt:
|  | March 31, |
|  | 2013 |  |  | 2012 |
3.375% Convertible Notes, net of discount, due 2038 |  | $ | 155,273 |  |  | $ | 148,272 |
2011 Credit Facility due 2016 |  |  | — |  |  |  | 79,400 |
China Term Loan due 2017 |  |  | — |  |  |  | 6,034 |
India Term Loan due 2017 |  |  | — |  |  |  | 5,383 |
Other |  |  | — |  |  |  | 40 |
|  |  | 155,273 |  |  |  | 239,129 |
Less current portion |  |  | — |  |  |  | 2,540 |
Total long-term debt |  | $ | 155,273 |  |  | $ | 236,589 |
2011 Senior Secured Revolving Credit Facility On March 29, 2011, the Company entered into a $350,000 senior secured revolving credit facility (“2011 Credit Facility”). The 2011 Credit Facility matures on March 31, 2016. This facility includes an early termination provision under which the Company is required to meet a liquidity test in February 2015 related to its capacity to meet certain potential obligations related to the Convertible Notes in June 2015. Borrowings under the 2011 Credit Facility bear interest at a floating rate based, at the Company’s option, upon (i) LIBOR plus an applicable percentage (currently 1.25%), (ii) the greater of the Federal Funds rate plus 0.50% or the prime rate, or one-month LIBOR plus 1.0%, plus an applicable percentage (currently 0.25%). There are no prepayment penalties on loans under the 2011 Credit Facility. There was no balance outstanding as of March 31, 2013. Obligations under the 2011 Credit Facility are secured by substantially all of the Company’s existing and future acquired assets, including substantially all of the capital stock of the Company’s United States subsidiaries that are guarantors under the credit facility, and 65% of the capital stock of certain of the Company’s foreign subsidiaries that are owned by the Company’s United States companies. China Term Loan During the fourth quarter of fiscal 2011, the Company completed the financing of the China Term Loan. This was a six-year term loan to provide a portion of the capital requirements for the Company’s operations in China. This term loan was paid in full during the fourth quarter of fiscal 2013. India Term Loan During the fourth quarter of fiscal 2012, the Company obtained a controlling financial interest in Energy Leader Batteries India Limited in India. The Company assumed the India Term Loan at the date of acquisition. The loan was paid in full during the third quarter of fiscal 2013 and was replaced with a short-term borrowing. The amount outstanding as of March 31, 2013, on the short-term borrowings was $15,077. Senior Unsecured 3.375% Convertible Notes On May 28, 2008, the Company completed a registered offering of $172,500 aggregate principal amount of senior unsecured 3.375% Convertible Notes Due 2038 (“Convertible Notes”) (see prospectus and supplemental indenture dated May 28, 2008). The Company received net proceeds of $168,200 after the deduction of commissions and offering expenses. The Company used all of the net proceeds to repay a portion of its then existing senior secured credit facility. The Convertible Notes are general senior unsecured obligations and rank equally with the Company’s existing and future senior unsecured obligations and are junior to any of the Company’s future secured obligations to the extent of the value of the collateral securing such obligations. The Convertible Notes are not guaranteed, and are structurally subordinate in right of payment to, all of the (i) existing and future indebtedness and other liabilities of the Company’s subsidiaries and (ii) preferred stock of the Company’s subsidiaries to the extent of their respective liquidation preferences. The Convertible Notes require the semi annual payment of interest in arrears on June 1 and December 1 of each year beginning December 1, 2008, at 3.375% per annum on the principal amount outstanding. The Convertible Notes will accrete principal beginning on June 1, 2015 and will bear contingent interest, if any, beginning with the six-month interest period commencing on June 1, 2015 under certain circumstances. The Convertible Notes will mature on June 1, 2038. Prior to maturity, the holders may convert their Convertible Notes into shares of the Company’s common stock at any time after March 1, 2015 or prior to that date under certain circumstances. When issued, the initial conversion rate was 24.6305 shares per $1,000 principal amount of Convertible Notes, which was equivalent to an initial conversion price of $40.60 per share. It is the Company’s current intent to settle the principal amount of any conversions in cash, and any additional conversion consideration in cash, shares of EnerSys common stock or a combination of cash and shares. The Convertible Notes will mature on June 1, 2038, unless earlier converted, redeemed or repurchased. At any time after June 6, 2015, the Company may at its option redeem the Convertible Notes, in whole or in part, for cash, at a redemption price equal to 100% of the principal amount of Convertible Notes to be redeemed, plus any accrued and unpaid interest. A holder of Convertible Notes may require the Company to repurchase some or all of the holder’s Convertible Notes for cash upon the occurrence of a fundamental change as defined in the indenture and on each of June 1, 2015, 2018, 2023, 2028 and 2033 at a price equal to 100% of the principal amount of the Convertible Notes being repurchased, plus accrued and unpaid interest, if any, in each case. If applicable, the Company will pay a make-whole premium on Convertible Notes converted in connection with certain fundamental changes that occur prior to June 6, 2015. The amount of the make-whole premium, if any, will be based on the Company’s stock price and the effective date of the fundamental change. The indenture contains a detailed description of how the make-whole premium will be determined and a table showing the make-whole premium that would apply at various stock prices. No make-whole premium would be paid if the price of the Common Stock on the effective date of the fundamental change is less than $29.00. Any make-whole premium will be payable in shares of Common Stock (or the consideration into which the Company’s Common Stock has been exchanged in the fundamental change) on the conversion date for the Convertible Notes converted in connection with the fundamental change. The Convertible Notes were issued in an offering registered under the Securities Act of 1933, as amended (“Securities Act”). In accordance with FASB guidance on the accounting for convertible debt instruments that may be settled in cash upon conversion (including partial settlement), the liability and equity components are separated in a manner that will reflect the entity’s non-convertible debt borrowing rate when interest expense is recognized in subsequent periods. The following represents the principal amount of the liability component, the unamortized discount, and the net carrying amount of our Convertible Notes as of March 31, 2013 and 2012, respectively:
|  | March 31, 2013 |  |  | March 31, 2012 |
Principal |  | $ | 172,500 |  |  | $ | 172,500 |
Unamortized discount |  |  | (17,227 | ) |  |  | (24,228 | )
Net carrying amount |  | $ | 155,273 |  |  | $ | 148,272 |
Carrying amount of equity component |  | $ | 29,850 |  |  | $ | 29,850 |
As of March 31, 2013, the remaining discount will be amortized over a period of 26 months. The conversion price of the $172,500 in aggregate principal amount of the Convertible Notes is $40.60 per share and the number of shares on which the aggregate consideration to be delivered upon conversion is 4,248,761. The effective interest rate on the liability component of the Convertible Notes was 8.50%. The amount of interest cost recognized for the amortization of the discount on the liability component of the Convertible Notes was $7,001, $6,435 and $5,917, respectively, for the fiscal years ended March 31, 2013, 2012 and 2011. As of March 31, 2013 and 2012, the Company had available and undrawn, under all its lines of credit, $469,123 and $377,230, respectively. Included in the March 31, 2013 and 2012 amounts are $120,373 and $95,340, respectively, of uncommitted lines of credit. The Company paid $10,056, $8,933 and $16,101, net of interest received, for interest during the fiscal years ended March 31, 2013, 2012 and 2011, respectively. The Company’s financing agreements contain various covenants, which, absent prepayment in full of the indebtedness and other obligations, or the receipt of waivers, would limit the Company’s ability to conduct certain specified business transactions including incurring debt, mergers, consolidations or similar transactions, buying or selling assets out of the ordinary course of business, engaging in sale and leaseback transactions, paying dividends and certain other actions. The Company is in compliance with all such covenants. Short-Term Debt As of March 31, 2013 and 2012, the Company had $22,702 and $16,042, respectively, of short-term borrowings from banks. The weighted-average interest rates on these borrowings were approximately 9% for each of the fiscal years ended March 31, 2013 and 2012. Letters of Credit As of March 31, 2013 and 2012, the Company had $11,854 and $9,108, respectively, of standby letters of credit outstanding under the 2011 Credit Facility and other credit arrangements. Deferred Financing Fees In fiscal 2011, in connection with the refinancing of the Company’s previous credit facility, the Company wrote off $2,308 of unamortized deferred financing fees associated with the previous Credit Facility, and incurred $3,500 in new deferred financing fees. Deferred financing fees, net of accumulated amortization, totaled $3,355 and $4,634 as of March 31, 2013 and 2012, respectively. Amortization expense, relating to deferred financing fees, included in interest expense was $1,279, $1,278, and $1,861 for the fiscal years ended March 31, 2013, 2012 and 2011, respectively.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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