Long-Term Debt and Financing Arrangements (Tables)

12 Months Ended

Dec. 31, 2017

Our outstanding debt is as follows (in thousands):


	December 31,			December 31,
	2017			2016
	(in thousands except principal and interest payments)


Revolving line of credit	$	45,000		$	-

Secured Equipment Notes due on various dates in 2024 with monthly principal and interest payments between $403 and $83,000 commencing on various dates in 2017 and 2018; interest is paid monthly at a fixed annual rate between 2.85% and 3.41%		13,586			-

Secured Equipment Notes due on various dates in 2023 with monthly principal and interest payments between $669 and $62,665 commencing on various dates in 2016, 2017 and 2018; interest is paid monthly at a fixed annual rate between 2.23% and 3.28%		36,981			-

Secured Equipment Notes due on various dates in 2022 with monthly principal and interest payments between $3,030 and $254,190 commencing on various dates from 2015 to 2017; interest is paid monthly at a fixed annual rate of between 2.16% and 2.87%		30,301			-

Secured Equipment Notes due on various dates in 2021 with monthly principal and interest payments between $1,940 and $326,333 commencing on various dates from 2014 to 2017; interest is paid monthly at a fixed annual rate between 2.04% and 2.96%		76,885			59,836

Secured Equipment Notes due on various dates in 2020 with monthly principal and interest payments between $6,175 and $398,496 commencing on various dates from 2013 to 2016; interest is paid monthly at a fixed annual rate between 1.72% and 2.78%		50,737			48,633

Secured Equipment Notes due on various dates in 2019 with monthly principal and interest payments between $1,594 and $444,000 commencing on various dates from 2013 to 2015; interest is paid monthly at a fixed annual rate between 1.87% and 2.62%		36,178			49,464

Secured Equipment Notes due on various dates in 2018 with monthly principal and interest payments between $6,480 and $163,428 commencing on various dates in 2012, 2013 and 2014; interest is paid monthly at a fixed annual rate between 2.05% and 2.70%		2,406			2,759

		292,074			160,692

Less current portion		(77,266	)		(45,163	)
Total long-term debt	$	214,808		$	115,529

Summary of Aggregate Principal Payments

Aggregate principal payments, in thousands, due subsequent to December 31, 2017, are as follows:

2018	$	77,266
2019		70,033
2020		50,268
2021		30,704
2022		13,092
2023 and thereafter		50,711
	$	292,074