Form S-1 Table of Contents Blue Buffalo Pet Products, Inc. Notes to Consolidated Financial Statements (Continued) ($10 million sub-limit for letters of credit and a swing line sub-limit of $5 million). The Facility is secured by 100% of Blue's assets and is guarantee! by its parent BPP. The term loan facility expires on August 8.2019 and the revolving credit facility expires on August 8. 2017. As of December 31, 2012, the term loan is presented net of the related unamortized original issue discount ("O113"), which was $7.0 million at issuance. Accretion of OID is included in interest expense and was approximately $0.9 million for the year ended December 31, 2013. In connection with the Facility, the Company recorded approximately $5.7 million of deferred debt issuance costs. Both the OID and deferred debt issuance costs are being amortized over the weighted-average term of the Facility (approximately 7 years) using the effective interest method. The proceeds from the term loan were used to fund a special dividend of $350 million to shareholders. On December 6, 2012, the Company and its lenders amended the Facility to, among other things, provide additional tern loan borrowings of $50 million and allow for the distribution of dividends of $50 million. The proceeds from the additional term loan borrowings were used to fund a special dividend of $50 million to shareholders. In connection with this amendment, the Company recorded $1.2 million of additional deferred debt issuance costs to be amortized over the remaining term of the term loan facility (approximately 6.7 years) using the effective interest method. On Febmary IS, 2013, the Company and its lenders entered into two amendments to it-price both the term loan and revolving credit facility (the "Amended Facility"). The term loan amendment reduced the applicable margin on the $399 million principal amount of term loan borrowings by IS0 basis points and the interest rate floor by 25 basis points. T