Long-Term Debt

At June 30, 2017, we had $90.0 million outstanding on the asset-based revolving credit facility entered into January 31, 2012, as amended (the "2012 ABL Revolver") and a borrowing capacity of $77.4 million.

Long-term debt consists of the following, as of the dates indicated:



(In thousands, except percentages)	June 30, 2017			March 31, 2017
2016 Senior Notes bearing interest at 6.375%, with interest payable on March 1 and September 1 of each year. The 2016 Senior Notes mature on March 1, 2024.	$	350,000		$	350,000
2013 Senior Notes bearing interest at 5.375%, with interest payable on June 15 and December 15 of each year. The 2013 Senior Notes mature on December 15, 2021.	400,000			400,000
2012 Term B-4 Loans bearing interest at our option at either LIBOR plus a margin of 2.75%, with a LIBOR floor of 0.75%, or a base rate plus a margin (with a margin step-down to 2.50%) due on January 26, 2024.	1,332,000			1,382,000
2012 ABL Revolver bearing interest at our option at either a base rate plus applicable margin or LIBOR plus applicable margin. Any unpaid balance is due on January 26, 2022.	90,000			90,000
Total long-term debt (including current portion)	2,172,000			2,222,000
Current portion of long-term debt	—			—
Long-term debt	2,172,000			2,222,000
Less: unamortized debt costs	(26,591		)	(28,268		)
Long-term debt, net	$	2,145,409		$	2,193,732

As of June 30, 2017, aggregate future principal payments required in accordance with the terms of the 2012 Term B-4 Loans, 2012 ABL Revolver and the indentures governing the 6.375% senior unsecured notes due 2024 (the "2016 Senior Notes") and the 5.375% senior unsecured notes due 2021 (the "2013 Senior Notes") are as follows:



(In thousands)
Year Ending March 31,	Amount
2018 (remaining nine months ending March 31, 2018)	$	—
2019	—
2020	—
2021	—
2022	490,000
Thereafter	1,682,000
	$	2,172,000