4.    Long-Term Debt

Long-term debt consists of the following (in millions):

On July 21, 2006, the Company entered into a $300.0 million senior secured credit facility, or the Prior Credit Facility, comprised of a $200.0 million term loan and a $100.0 million revolving credit facility, with a syndicate of financial institutions as lenders. In September 2007, the Company and its lenders amended the credit agreement, increasing the amount of the revolving credit facility by an aggregate principal amount of $150.0 million to $250.0 million primarily to finance the increase in the Company’s share repurchase program. See Note 8, Shareholders’ Equity, for further discussion of the share repurchase program and the share repurchase amounts during the years ended December 31, 2013, 2012, and 2011. The term loan bore interest at LIBOR plus a margin of 1.5%, or the base rate plus a margin of 0.50%. The revolving credit facility bore interest at LIBOR plus a margin of 1.25%, or the base rate plus a margin of 0.25%.

On March 9, 2011, the Company entered into a $700.0 million senior secured revolving credit facility, or the Credit Facility, with a syndicate of financial institutions as lenders and terminated the Prior Credit Facility. The Credit Facility has a five year maturity and expires on March 9, 2016. Based on the Company’s consolidated leverage ratio, U.S. dollar borrowings under the Credit Facility bear interest at either LIBOR plus the applicable margin between 1.50% and 2.50% or the base rate plus the applicable margin between 0.50% and 1.50%. The base rate under the Credit Facility represents the highest of the Federal Funds Rate plus 0.50%, one-month LIBOR plus 1.00%, and the prime rate offered by Bank of America. The Company, based on its consolidated leverage ratio, pays a commitment fee between 0.25% and 0.50% per annum on the unused portion of the Credit Facility. The Credit Facility also permits the Company to borrow limited amounts in Mexican Peso and Euro currencies based on variable rates. All obligations under the Credit Facility are unconditionally guaranteed by certain of the Company’s subsidiaries and are secured by substantially all of the assets of the U.S. subsidiaries of the Company’s parent, Herbalife Ltd.

In March 2011, the Company used $196.0 million in U.S. dollar borrowings under the Credit Facility to repay all amounts outstanding under the Prior Credit Facility. The Company incurred approximately $5.7 million of debt issuance costs in connection with the Credit Facility. These debt issuance costs were recorded as deferred financing costs on the Company’s consolidated balance sheet and are being amortized over the term of the Credit Facility.

On July 26, 2012, the Company amended the Credit Facility to include a $500.0 million term loan with a syndicate of financial institutions as lenders, or the Term Loan. The Term Loan is a part of the Credit Facility and is in addition to the Company’s current revolving credit facility. The Term Loan matures on March 9, 2016. The Company will make regular scheduled payments for the Term Loan consisting of both principal and interest components. Based on the Company’s consolidated leverage ratio, the Term Loan bears interest at either LIBOR plus the applicable margin between 1.50% and 2.50% or the base rate plus the applicable margin between 0.50% and 1.50% which are the same terms as the Company’s revolving credit facility.

In July 2012, the Company used all $500.0 million of the borrowings under the Term Loan to pay down amounts outstanding under the Company’s revolving credit facility. The Company incurred approximately $4.5 million of debt issuance costs in connection with the Term Loan. The debt issuance costs are recorded as deferred financing costs on the Company’s consolidated balance sheet and will be amortized over the life of the Term Loan. On December 31, 2013 and December 31, 2012, the weighted average interest rate for borrowings under the Credit Facility, including borrowings under the Term Loan, was 2.17% and 1.96%, respectively.

The Credit Facility requires the Company to comply with a leverage ratio and a coverage ratio. In addition, the Credit Facility contains customary covenants, including covenants that limit or restrict the Company’s ability to incur liens, incur indebtedness, make investments, dispose of assets, make certain restricted payments, pay dividends, repurchase its common shares, merge or consolidate and enter into certain transactions with affiliates. As of December 31, 2013 and 2012, the Company was compliant with its debt covenants under the Credit Facility. The fair value of the Company’s Credit Facility, including the Term Loan, approximated its carrying value as of December 31, 2013, due to its variable interest rate which reprices frequently and represents floating market rates. The fair value of the Credit Facility is determined by utilizing Level 2 inputs as defined in Note 13, Fair Value Measurements, such as observable market interest rates and yield curves.

During 2013, the Company borrowed an aggregate amount of $763.0 million and paid a total amount of $319.2 million under the Credit Facility. During 2012, the Company borrowed an aggregate amount of $1,428.0 million and paid a total amount of $1,142.5 million under the Credit Facility. During 2011, the Company borrowed $859.7 million and $54.0 million under the Credit Facility and Prior Credit Facility, respectively, and paid a total of $657.7 million and $228.9 million under the Credit Facility and Prior Credit Facility, respectively. As of December 31, 2013 and December 31, 2012, the U.S. dollar amount outstanding under the Credit Facility was $931.3 million and $487.5 million, respectively. Of the $931.3 million U.S. dollar amount outstanding under the Credit Facility as of December 31, 2013, $431.3 million was outstanding on the Term Loan and $500.0 million was outstanding on the revolving credit facility. Of the $487.5 million U.S. dollar amount outstanding under the Credit Facility as of December 31, 2012, $487.5 million was outstanding on the Term Loan and no amounts were outstanding on the revolving credit facility. There were no outstanding foreign currency borrowings as of December 31, 2013 and December 31, 2012 under the Credit Facility.

As of December 31, 2013, the aggregate annual maturities of the Credit Facility were expected to be $81.3 million for 2014, $100.0 million for 2015, and $750.0 million for 2016.

Interest expense was $26.6 million, $16.7 million, and $9.9 million, for the years ended December 31, 2013, 2012, and 2011, respectively. Interest expense for the year ended December 31, 2011 included a $0.9 million write-off of unamortized deferred financing costs resulting from the extinguishment of the Prior Credit Facility, as discussed above.