12. Long-Term Debt

4.625% Senior Unsecured Notes due 2027

On December 16, 2019, the Company completed a private placement of 4.625% Senior Unsecured Notes due 2027 (the “Notes”) with a $400 million principal amount pursuant to Rule 144A and Regulation S under the Securities Act of 1933, as amended. The Notes were issued with a $4.5 million discount and will mature December 15, 2027, with interest payable semi-annually in arrears on June 15 and December 15 of each year, commencing on June 15, 2020. The Notes represent senior unsecured obligations that rank equally in right of payment to all existing and future senior unsecured indebtedness. The Company may redeem the Notes prior to maturity, subject to certain limitations and premiums defined in the indenture governing the Notes. At any time prior to December 15, 2022, the Company may redeem the Notes at a redemption price equal to 100% of the principal plus the Applicable Premium (as defined in the indenture governing the Notes), and accrued and unpaid interest. At any time prior to December 15, 2022, the Company may use the proceeds of certain equity offerings to redeem up to 35% of the aggregate principal amount of the Notes, including any permitted additional notes, at a redemption price equal to 104.625% of the principal amount and accrued and unpaid interest. At any time and from time to time on or after December 15, 2022, the Company may redeem the Notes at the applicable redemption prices set forth in the table below, plus accrued and unpaid interest, if redeemed during the 12-month period beginning on December 15 of each of the years indicated:

The Notes allow the Company to pay $25 million of dividends per fiscal year with no restrictions, plus an unlimited amount of dividends so long as the Company’s consolidated total leverage ratio is not greater than 3.50 to 1.00, and the Company is not in default under the indenture governing the Notes. The Notes are guaranteed by each of the Company's existing and future wholly owned domestic subsidiaries to the extent such subsidiaries guarantee the Company's revolving credit facility. The indenture governing the Notes requires that, upon the occurrence of both a Change of Control and a Rating Decline (each as defined in the indenture), the Company shall make an offer to purchase all of the Notes at 101% of their principal amount, and accrued and unpaid interest. The Company used the proceeds from the offering of the Notes to repay $276.9 million outstanding under the Company’s prior revolving credit facility and to pay expenses and fees in connection therewith. The remainder of the proceeds were used for general corporate requirements. The effective interest rate on the Notes was 4.86% as of July 31, 2021. As of July 31, 2021 and April 30, 2021, the fair value of the Notes was $415.5 million and $416.5 million, respectively, based on borrowing rates then required of notes with similar terms, maturity and credit risk. The fair value of the Notes was classified as a Level 2 measurement in the fair value hierarchy.

Long-term debt, at amortized cost, consisted of the following:

Credit Facility

On December 16, 2019, the Company entered into a Credit Agreement (the “Credit Agreement”) with a syndicate of banks and Bank of America, National Association as administrative agent to among other things, provide for enhanced financial flexibility. The Credit Agreement provides for a $650.0 million five-year senior secured revolving credit facility (the “Revolver”), and contains certain customary affirmative and negative covenants, including a maximum consolidated net leverage ratio, a maximum consolidated secured net leverage ratio and a minimum interest coverage ratio. The Credit Agreement permits the payment of dividends to stockholders and Company share repurchases so long as there is no default under the Credit Agreement, the total funded debt to adjusted EBITDA ratio (as set forth in the Credit Agreement, the “consolidated net leverage ratio”), is no greater than 4.00 to 1.00, and pro forma liquidity is at least $50.0 million.

The principal balance of the Revolver, if any, is due on the date of its termination. The Revolver matures on December 16, 2024 and any unpaid principal balance is payable on this date. The Revolver may also be prepaid and terminated early by the Company at any time without premium or penalty (subject to customary LIBOR breakage fees).

At the Company’s option, loans issued under the Credit Agreement will bear interest at either LIBOR or an alternate base rate, in each case plus the applicable interest rate margin. The interest rate applicable to loans outstanding under the Credit Agreement may fluctuate between LIBOR plus 1.125% per annum to LIBOR plus 2.00% per annum, in the case of LIBOR borrowings (or between the alternate base rate plus 0.125% per annum and the alternate base rate plus 1.00% per annum, in the alternative), based upon the Company’s consolidated net leverage ratio at such time. In addition, the Company will be required to pay to the lenders a quarterly commitment fee ranging from 0.175% to 0.35% per annum on the average daily unused amount of the Revolver, based upon the Company’s consolidated net leverage ratio at such time, and fees relating to the issuance of letters of credit.

As of July 31, 2021 and April 30, 2021, there was no outstanding liability under the Revolver. The unamortized debt issuance costs associated with the Credit Agreement was $3.1 million and $3.3 million as of July 31, 2021 and April 30, 2021, respectively. The debt issuance costs were included in other current assets and other non-current assets on the consolidated balance sheets. As of July 31, 2021, the Company was in compliance with its debt covenants.

The Company had a total of $644.5 million and $646 million available under the Revolver after $5.5 million and $4.0 million of standby letters of credit have been issued as of July 31, 2021 and April 30, 2021, respectively. The Company had a total of $11.7 million and $11.0 million of standby letters with other financial institutions as of July 31, 2021 and April 30, 2021, respectively. The standby letters of credit were generally issued as a result of entering into office premise leases.