volatility in the equity and debt markets or other country specific factors which could result in a higher weighted-average cost of capital.
Based on known facts and circumstances, we evaluate and consider recent events and uncertain items, as well as related potential implications, as part of our annual assessment and incorporate into the analyses as appropriate. These facts and circumstances are subject to change and may impact future analyses.
While historical performance and current expectations have resulted in fair values of our reporting units and indefinite-lived intangible assets in excess of carrying values, if our assumptions are not realized, it is possible that an impairment charge may need to be recorded in the future.
Long-Term Debt and Finance Lease Obligations
Senior Notes
On September 22, 2017, the Company completed the public offering of $400.0 million aggregate principal amount of its 4.400% Senior Notes due 2024 (the “Notes”). The Notes are governed by an indenture, dated as of September 22, 2017 (the “Base Indenture”), between the Company, as issuer, and U.S. Bank National Association, as trustee, as supplemented by a first supplemental indenture, dated as of September 22, 2017 (the “First Supplemental Indenture” together with the Base Indenture, the “Indenture”), between the Company, as issuer, and U.S. Bank National Association, as trustee. During the year ended December 31, 2019 and six months ended June 30, 2020, the Company purchased and subsequently retired $11.1 million and $28.9 million of its Notes, respectively, which resulted in a loss on retirement of $0.3 million and $0.7 million, respectively, that is included in interest expense. The Notes were issued at a discount and had a carrying value of $388.4 million and $359.6 million at December 31, 2019 and June 30, 2020, respectively.
The Notes bear interest payable semiannually in cash in arrears on March 22 and September 22 of each year, commencing on March 22, 2018, which rate is subject to an interest rate adjustment upon the occurrence of certain credit rating events. The Notes mature on September 22, 2024. The Indenture provides that the Notes are redeemable at the Company’s option, in whole or in part, at any time on or after July 22, 2024, at a redemption price equal to 100% of the principal amount of the Notes being redeemed plus accrued and unpaid interest thereon to, but excluding, the redemption date.
The Indenture also contains certain covenants which restrict the Company’s ability to, among other things, create liens on its and its subsidiaries’ assets; engage in sale and lease-back transactions; and engage in a consolidation, merger or sale of assets.
Credit Agreement
On September 22, 2017, the Company entered into a credit agreement with various lenders that provides for a $400.0 million senior unsecured revolving credit facility and a $350.0 million senior unsecured term loan facility to the Company, as the borrower (the “2017 Credit Agreement”). On August 13, 2018, the Company entered into an amendment to the 2017 Credit Agreement, which extended the maturity date by one year. On February 27, 2019, the Company entered into a second amendment to the 2017 Credit Agreement, which amended the total leverage ratio covenant, and which was necessary in order for us to remain in compliance with the terms of the 2017 Credit Agreement. The 2017 Credit Agreement is scheduled to mature on September 22, 2023.
Under the 2017 Credit Agreement, the annual interest rate on the loan borrowing is equal to (i) in the case of base rate loans, the sum of an initial borrowing margin of 0.500 percent plus the higher of the prime rate, one-half of one percent in excess of the overnight “federal funds” rate, or the Eurodollar rate for one month plus 1.000 percent, or (ii) in the case of Eurodollar rate loans, the sum of an initial borrowing margin of 1.500 percent plus the Eurodollar rate for the selected interest period. The borrowing margin is subject to adjustment based on the Company’s debt rating as provided by certain rating agencies. The Company has the option to borrow in base rate loans or Eurodollar rate loans at its discretion. The commitment commission on the revolving credit facility under the 2017 Credit Agreement is 0.200