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Debt Obligations | 12 Months Ended
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Dec. 31, 2015
Debt Obligations [Abstract] |
Debt Obligations | Debt Obligations Convertible Debt. In November 2014, Lexicon completed an offering of $87.5 million in aggregate principal amount of its 5.25% Convertible Senior Notes due 2021 (the “Notes”). The conversion feature did not meet the criteria for bifurcation as required by generally accepted accounting principles and the entire principal amount was recorded as long-term debt on the Company’s consolidated balance sheets. The Notes are governed by an indenture (the “Indenture”), dated as of November 26, 2014, between the Company and Wells Fargo Bank, N.A., as trustee. The Notes bear interest at a rate of 5.25% per year, payable semiannually in arrears on June 1 and December 1 of each year, beginning on June 1, 2015. The Notes mature on December 1, 2021. The Company may not redeem the Notes prior to the maturity date, and no sinking fund is provided for the Notes. Holders of the Notes may convert their Notes at their option at any time prior to the close of business on the business day immediately preceding the maturity date. Upon conversion, the Company will deliver for each $1,000 principal amount of converted Notes a number of shares of its common stock equal to the conversion rate, as described in the Indenture. The conversion rate is initially 118.4553 shares of common stock per $1,000 principal amount of Notes (equivalent to an initial conversion price of $8.442 per share of common stock). The conversion rate is subject to adjustment in some events but will not be adjusted for any accrued and unpaid interest. In addition, following certain corporate events that occur prior to the maturity date, the Company will increase the conversion rate for a holder who elects to convert its Notes in connection with such a corporate event in certain circumstances. If the Company undergoes a fundamental change, holders may require the Company to repurchase for cash all or any portion of their Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. In connection with the issuance of the Notes, the Company incurred $3.4 million of debt issuance costs, which is included in other assets on the consolidated balance sheets. The debt issuance costs are amortized as interest expense over the expected life of the Notes using the effective interest method. The Company determined the expected life of the debt was equal to the seven-year term of the Notes. As of December 31, 2015, the balance of unamortized debt issuance costs was $2.8 million. The fair value of the Notes was $154.2 million as of December 31, 2015 and was determined using Level 2 inputs based on the indicative pricing published by certain investment banks or trading levels of the Notes, which are not listed on any securities exchange or quoted on an inter-dealer automated quotation system. Mortgage Loan. In April 2004, Lexicon purchased its existing laboratory and office buildings and animal facilities in The Woodlands, Texas with proceeds from a $34.0 million third-party mortgage financing and $20.8 million in cash. The mortgage loan originally had a ten-year term with a 20-year amortization and a fixed interest rate of 8.23%. The mortgage was amended in September 2013 to extend the maturity date from April 2014 to April 2017, with the mortgage loan’s monthly payment amount and fixed interest rate each remaining unchanged. The mortgage had a principal balance of $18.3 million as of December 31, 2015. This entire balance was classified as current liabilities on the accompanying consolidated balance sheet as of December 31, 2014 as management intended to repay the mortgage when the assets that serve as collateral for the mortgage loan were sold, and those assets were classified as held for sale as of December 31, 2014. In 2015, these assets were reclassified to assets held and used, and are therefore disclosed as property and equipment as of December 31, 2015, and the related mortgage was reclassified to long-term liabilities, to the extent it is scheduled to be paid after one year, assuming the purchase and sale agreement is not completed (see Note 6, Buildings and Land for Sale). If the purchase and sale agreement that is discussed in Note 6 is completed, the mortgage will be repaid immediately. The buildings and land that serve as collateral for the mortgage loan are included in assets held for sale at $59.1 million and $2.7 million, respectively, before accumulated depreciation, as of December 31, 2015. The fair value of Lexicon’s mortgage loan approximates its carrying value. The fair value of Lexicon’s mortgage loan was determined using Level 2 inputs using discounted cash flow analysis, based on the Company’s estimated current incremental borrowing rate. The following table includes the aggregate scheduled future principal payments of the Company’s long-term debt as of December 31, 2015:
| For the Year Ending December 31
| (in thousands)
2016 | $ | 2,015 |
2017 | 16,293 |
2018 | — |
2019 | — |
2020 | — |
Thereafter | 87,500 |
Total debt | 105,808 |
Less current portion | (2,015 | )
Total long-term debt | $ | 103,793 |

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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 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: 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 + Details
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