Debt

Senior notes. Unsecured senior debt, net of unamortized discounts and debt issuance costs, consisted of the following:



($000)	November 3, 2018		February 3, 2018		October 28, 2017
6.38% Series A Senior Notes due 2018	$	84,997	$	84,973	$	84,964
6.53% Series B Senior Notes due 2021	64,937		64,922		64,917
3.375% Senior Notes due 2024	247,391		247,072		246,967
Total long-term debt	$	397,325	$	396,967	$	396,848

Less: current portion	84,997		84,973		—
Total due beyond one year	$	312,328	$	311,994	$	396,848

As of November 3, 2018, the Company had outstanding unsecured 3.375% Senior Notes due September 2024 (the “2024 Notes”) with an aggregate principal amount of $250 million. Interest on the 2024 Notes is payable semi-annually.

As of November 3, 2018, the Company also had outstanding two other series of unsecured senior notes in the aggregate principal amount of $150 million, held by various institutional investors. The Series A notes totaling $85 million are due in December 2018, and bear interest at 6.38%. The Series B notes totaling $65 million are due in December 2021, and bear interest at 6.53%. Borrowings under these senior notes are subject to certain financial covenants, including interest coverage and other financial ratios. As of November 3, 2018, the Company was in compliance with these covenants.

As of November 3, 2018, February 3, 2018, and October 28, 2017, total unamortized discount and debt issuance costs were $2.7 million, $3.0 million, and $3.2 million, respectively, and were classified as a reduction of Long-term debt.

The 2024 Notes, Series A, and Series B senior notes are all subject to prepayment penalties for early payment of principal.

The aggregate fair value of the three outstanding senior note issuances was approximately $402 million, $411 million, and $415 million as of November 3, 2018, February 3, 2018, and October 28, 2017, respectively. The fair value is estimated by obtaining comparable market quotes which are considered to be Level 1 inputs under the fair value measurements and disclosures guidance.

The table below shows the components of interest expense and income for the three and nine month periods ended November 3, 2018 and October 28, 2017:



	Three Months Ended						Nine Months Ended
($000)	November 3, 2018			October 28, 2017			November 3, 2018			October 28, 2017
Interest expense on long-term debt	$	4,646		$	4,645		$	13,937		$	13,933
Other interest expense	233			233			768			735
Capitalized interest	(700		)	(205		)	(1,832		)	(387		)
Interest income	(7,132		)	(2,893		)	(17,722		)	(6,991		)
Interest (income) expense, net	$	(2,953	)	$	1,780		$	(4,849	)	$	7,290

Revolving credit facility. The Company’s $600 million unsecured revolving credit facility expires in April 2021 and contains a $300 million sublimit for issuance of standby letters of credit (subject to increase in proportion to any increase in the size of the credit facility). The facility also contains an option allowing the Company to increase the size of its credit facility by up to an additional $200 million, with the agreement of the lenders. Interest on any borrowings under this facility is based on LIBOR plus an applicable margin (currently 100 basis points) and is payable quarterly and upon maturity. As of November 3, 2018, the Company had no borrowings or standby letters of credit outstanding under this facility and the $600 million credit facility remains in place and available.

The revolving credit facility is subject to a financial leverage ratio covenant. As of November 3, 2018, the Company was in compliance with this covenant.