Long-Term Debt

Long-term debt includes the following:



	March 31, 2017			March 31, 2016			December 31, 2016
	(In thousands)
2010 Senior Notes due October 2020 and October 2040	$	500,000		$	500,000		$	500,000
2011 Senior Notes due November 2016 and November 2041	300,000			600,000			300,000
2013 Senior Notes due March 2018 and March 2023	500,000			500,000			500,000
2014 Senior Notes due May 2019	500,000			500,000			500,000
2016 Senior Notes due August 2021	350,000			—			350,000
Debt issuance costs	(15,018		)	(14,573		)	(15,729		)
	2,134,982			2,085,427			2,134,271
Less: current portion	(250,000		)	(300,000		)	—
Total long-term debt	$	1,884,982		$	1,785,427		$	2,134,271

In August 2016, Mattel issued $350.0 million aggregate principal amount of 2.35% senior unsecured notes due August 15, 2021 (“2016 Senior Notes”). Interest on the 2016 Senior Notes is payable semi-annually in arrears on February 15 and August 15 of each year, beginning February 15, 2017. Mattel may redeem all or part of the 2016 Senior Notes at any time or from time to time prior to July 15, 2021 (one month prior to the maturity date of the 2016 Senior Notes) (the “Par Call Date”), at its option, at a redemption price equal to the greater of (1) 100% of the principal amount of the 2016 Senior Notes being redeemed or (2) a “make-whole” amount based on the yield of a comparable U.S. Treasury security plus 20 basis points, plus, in each case, accrued and unpaid interest on the 2016 Senior Notes being redeemed to, but excluding, the redemption date. Mattel may redeem all or part of the 2016 Senior Notes at any time or from time to time on or after the Par Call Date, at its option, at a redemption price equal to 100% of the principal amount of the 2016 Senior Notes to be redeemed, plus accrued and unpaid interest on the 2016 Senior Notes being redeemed to, but excluding, the redemption date.