Long-Term Debt and Financing Arrangements (Tables)

12 Months Ended

Dec. 31, 2015

Our outstanding debt is as follows (in thousands):

	Period Ended
	December 31,			December 31,
	2015			2014
Secured Equipment Notes due in December 2020 with monthly principal and interest payments of $0.6 million commencing in January 2016; interest is paid monthly at a fixed annual rate between 2.02% and 2.03%	$	33,066		$	-

Secured Equipment Notes due in September 2020 with monthly principal and interest payments of $0.2 million commencing in October 2015; interest is paid monthly at a fixed annual rate of 1.84%		12,214			-

Secured Equipment Notes due in July 2020 with monthly principal and interest payments of $0.1 million commencing in July 2015; interest is paid monthly at a fixed annual rate of 2.14%		6,395			-

Secured Equipment Notes due in March 2020 with monthly principal and interest payments of $0.04 million commencing in April 2015; interest is paid monthly at a fixed annual rate of 2.14%		1,998			-

Secured Equipment Notes due in January 2020 with monthly principal and interest payments of $0.2 million commencing in February 2015; interest is paid monthly at a fixed annual rate between 1.72% and 2.26%		7,533			-

Secured Equipment Notes due in December 2019 with monthly principal and interest payments of $0.2 million commencing in January 2015; interest is paid monthly at a fixed annual rate of 2.24%		10,828			13,387

Secured Equipment Notes due in November 2019 with monthly principal and interest payments of $0.5 million commencing in December 2014; interest is paid monthly at a fixed annual rate of 2.05%		22,514			28,429

Secured Equipment Notes due in September 2019 with monthly principal and interest payments of $0.4 million commencing in September 2014; interest is paid monthly at a fixed annual rate of 2.15%		18,170			22,772

Secured Equipment Notes due in February 2019 with monthly principal and interest payments of $0.4 million commencing in January 2014; interest is paid monthly at a fixed annual rate between 1.87% and 1.93%		15,974			21,016

Secured Equipment Notes due in June 2018 with quarterly principal and interest payments of $0.5 million commencing in August 2013; interest is paid quarterly at a fixed annual rate between 1.9% and 2.0%		4,612			6,475
		133,304			92,079

Less current portion		(32,409	)		(19,619	)
Total long-term debt	$	100,895		$	72,460

Summary of Aggregate Principal Payments

Aggregate principal payments, in thousands, due subsequent to December 31, 2015, are as follows:

2016	$	32,409
2017		32,772
2018		32,449
2019		25,766
2020		9,908
	$	133,304