Debt and Financing Arrangements (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Summary of Reconciliation of Debt

At December 31, debt consisted of the following (in thousands):

	December 31, 2016		December 31, 2015
Credit Agreement with Banks, described below	$	—	$	14,534
Senior Notes under a Master Shelf Agreement, described below		7,143		14,286
Capital Leases, described below		66,661		40,152
Total debt		73,804		68,972
Less: current portion of long-term debt		16,762		12,432
Long-term debt, less current portion	$	57,042	$	56,540

Schedule of Principal Maturities of Long-Term Debt

The principal maturities of long-term debt for the next five years (in thousands) are as follows:

	Amount
2017	$	18,517
2018		11,374
2019		11,374
2020		11,374
2021		11,952
Thereafter		15,454
Total		80,045
Less: Amounts Representing Interest on Capital Leases		6,241
Total	$	73,804