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Revolving Credit Facility and Long-Term Debt (Tables)
9 Months Ended
Sep. 30, 2018
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments Principal balances outstanding under our long-term debt obligations as of September 30, 2018 and December 31, 2017, consisted of the following (in thousands):
September 30, 2018December 31, 2017
2016 Term loan $76,250 $85,000 
2016 Revolving credit loans 126,000 187,000 
Collateralized debt facility 7,000 6,959 
Less unamortized debt issuance costs (383)(487)
Total long-term debt 208,867 278,472 
Less current portion 22,000 19,459 
Long-term portion $186,867 $259,013 
Schedule of Long-term Debt Covenants The Second Amended Credit Agreement requires that we maintain certain financial covenants, as follows:
Covenant Requirement 
Consolidated Total Leverage Ratio (1)
January 1, 2018 and thereafter 3.5 to 1.0 
Consolidated EBITDA (2)
1.25 to 1.0 
Consolidated Net Income (3)
$0 
Facility Capital Expenditures (4)
$30 million 
(1)
Maximum Consolidated Total Leverage Ratio (as defined in the Second Amended Credit Agreement) as of any fiscal quarter end. 
(2)
Minimum ratio of Consolidated EBITDA (as defined in the Second Amended Credit Agreement and adjusted for certain expenditures) to Consolidated Fixed Charges (as defined in the Second Amended Credit Agreement) for any period of four consecutive fiscal quarters. 
(3)
Minimum level of Consolidated Net Income (as defined in the Second Amended Credit Agreement) for certain periods, and subject to certain adjustments. 
(4)
Maximum level of the aggregate amount of all Facility Capital Expenditures (as defined in the Second Amended Credit Agreement) in any fiscal year. 
Schedule of Maturities of Long-term Debt
Future minimum principal payments on our long-term debt as of September 30, 2018, are as follows (in thousands):
Years Ending Future Minimum 
December 31 Principal Payments 
Remaining 2018 $3,750 
201922,000 
202017,500 
2021166,000 
Total future minimum principal payments $209,250