
				As of December 31,
	Maturity Date	Effective Interest Rates		2020		2019
Senior Notes ("Notes"):
4.500% fixed-rate notes(1) ("2024 Notes")	March 2024	4.70	%	$	265.8	$	500.0
4.350% fixed-rate notes ("2025-I Notes")	June 2025	4.47	%	158.0		300.0
1.200% fixed-rate notes ("2025-II Notes")	December 2025	1.37	%	400.0		—
3.750% fixed-rate notes ("2029 Notes")	August 2029	3.86	%	500.0		500.0
2.000% fixed-rate notes ("2030 Notes")	December 2030	2.12	%	400.0		—
5.950% fixed-rate notes ("2041 Notes")	March 2041	6.03	%	400.0		400.0
Total Notes				2,123.8		1,700.0
Unaccreted discount and debt issuance costs				(16.8)		(13.0)
Hedge accounting fair value adjustments(2)				20.3		(3.1)
Total				$	2,127.3	$	1,683.9

(1) 2024 Notes issued in March 2014 and February 2016 form a single series and are fully fungible. The effective interest rate for 2014 and 2016 issuance is 4.63% and 4.87%, respectively, with the weighted average effective interest rate being 4.70%.

(2) Represents the fair value adjustments for interest rate swap contracts with an aggregate notional amount of $300.0 million designated as fair value hedges of our fixed-rate 2041 Notes. See Note 5, Derivative Instruments, for a discussion of the Company's interest rate swaps.

In December 2020, the Company issued $400.0 million aggregate principal amount of 1.20% senior notes due 2025 ("2025-II Notes") and $400.0 million aggregate principal amount of 2.00% senior notes due 2030 ("2030 Notes"). The net proceeds from the issuances of the 2025-II Notes and the 2030 Notes, together with cash on hand, were used for the repayment of $500.0 million aggregate principal amount of the Company's 4.50% senior notes due 2024 and $300.0 million aggregate principal amount of the Company's 4.35% senior notes due 2025.

In December 2020, the Company, through a cash tender offer, partly repurchased $234.2 million in aggregate principal amount of 2024 Notes and $142.0 million in aggregate principal amount of 2025-I Notes. The repayments resulted in a loss on extinguishment of debt of $55.0 million, consisting primarily of a premium on the tender offer and acceleration of unamortized debt discount and fees on the redeemed debt, which was recorded within the Consolidated Statements of Operations.

The Notes above are the Company’s senior unsecured and unsubordinated obligations, ranking equally in right of payment to all of the Company’s existing and future senior unsecured and unsubordinated indebtedness, and senior in right of payment to any of the Company’s future indebtedness that is expressly subordinated to the Notes.

The Company may redeem the Notes, either in whole or in part, at any time at a redemption price equal to the greater of (i) 100% of the aggregate principal amount of the Notes to be redeemed or (ii) the sum of the present values of the remaining scheduled payments discounted to the redemption date, plus, in either case, accrued and unpaid interest, if any.

In the event of a change of control repurchase event, the holders of the Notes may require the Company to repurchase for cash all or part of the Notes at a purchase price equal to 101% of the aggregate principal amount, plus accrued and unpaid interest, if any.

Interest on the Notes is payable in cash semiannually. The effective interest rates for the Notes include the interest on the Notes, accretion of the discount, and amortization of issuance costs. The indentures that govern the Notes also contain various covenants, including limitations on the Company's ability to incur liens or enter into sale-leaseback transactions over certain dollar thresholds.

In April 2019, the Company entered into a credit agreement (the "Credit Agreement") with certain institutional lenders that provides for a five-year $500.0 million unsecured revolving credit facility (the "Revolving Credit Facility"), with an option to increase the Revolving Credit Facility by up to an additional $200.0 million, subject to the lenders' approval. Proceeds of loans made under the Revolving Credit Facility may be used by the Company for working capital and general corporate purposes. The Revolving Credit Facility will terminate in April 2024, subject to a one-year maturity extension option, on the terms and conditions as set forth in the credit agreement.

Borrowings under the Revolving Credit Facility will bear interest, at either (i) a floating rate per annum equal to the base rate plus a margin of between 0.00% and 0.375%, depending on the Company's public debt rating or (ii) a per annum rate equal to the reserve adjusted Eurocurrency rate, plus a margin of between 0.910% and 1.375%, depending on the Company's public debt rating. Base rate is defined as the greatest of (A) Citibank's base rate, (B) the federal funds rate plus 0.500% or (C) the ICE Benchmark Administration Settlement Rate applicable to dollars for a period of one month plus 1.00%. The Eurocurrency rate is determined for U.S. dollars and Pounds Sterling as the rate at which deposits in such currency are offered in the London interbank market for the applicable interest period and for Euro as the rate specified for deposits in Euro with a maturity comparable to the applicable interest period.

The Revolving Credit Facility requires the Company to maintain a leverage ratio no greater than 3.0x (provided that if a material acquisition has been consummated, the Company is permitted to maintain a leverage ratio no greater than 3.5x for up to four quarters) and an interest coverage ratio no less than 3.0x during the term of the credit facility.

The Company provides certain customers with access to extended financing arrangements that allow for longer payment terms than those typically provided by the Company by factoring accounts receivable to third-party financing providers ("financing providers"). The program does not and is not intended to affect the timing of the Company's revenue recognition. Under the financing arrangements, proceeds from the financing providers are due to the Company within 1 to 90 days from the sale of the receivable. In these transactions with the financing providers, the Company surrenders control over the transferred assets.

Pursuant to the financing arrangements for the sale of receivables, the Company sold receivables of $57.5 million, $64.0 million and $122.8 million during the years ended December 31, 2020, 2019, and 2018, respectively. The Company received cash proceeds from financing providers of $57.4 million, $69.7 million, and $123.2 million during the years ended December 31, 2020, 2019, and 2018, respectively. As of December 31, 2020 and December 31, 2019, the amounts owed by the financing providers were $3.9 million and $5.3 million, respectively, which were recorded in accounts receivable on the Company’s Consolidated Balance Sheets.