Long-term Debt (Tables)
 12 Months Ended
Dec. 31, 2015
Debt Disclosure [Abstract]  
Long Term Debt
Long-term debt as of December 31, 2015 and 2014 was as follows (in thousands):
 
 
December 31, 2015
 
December 31, 2014
2014 Term Loan Facility, net of unamortized discount of $0 and $8,306
 
$
95,352

 
$
270,000

Revolver borrowings
 
—

 
—

Capital lease obligations
 
469

 
1,384

Total debt
 
95,821

 
271,384

Less: current portion
 
(3,169
)
 
(3,617
)
Long-term debt, net
 
$
92,652

 
$
267,767
Schedule of Interest Rate Margins
The interest rate margins will be adjusted each quarter based on the Company’s fixed charge coverage ratio as of the end of the previous quarter as follows:
 
Fixed Charge Coverage Ratio
 
U.S. Base Rate, Canadian
Base Rate and Canadian
Prime Rate Loans
 
LIBOR Loans, BA Rate Loans and
Letter of Credit Fees
>1.25 to 1
 
1.25%
 
2.25%
≤1.25 to 1 and >1.15 to 1
 
1.50%
 
2.50%
≤1.15 to 1
 
1.75%
 
2.75%
Fair Value of Debt Instruments
The estimated fair value of the Company’s debt instruments as of December 31, 2015 and December 31, 2014 was as follows (in thousands):
 
 
 
December 31, 2015
 
December 31, 2014
2014 Term Loan Facility
 
$
98,044

 
$
270,000

Revolver borrowings
 
—

 
—

Capital lease obligations
 
469

 
1,384

Total fair value of debt instruments
 
$
98,513

 
$
271,384
Summary of Assets Held under Capital Leases
The Company has entered into multiple capital lease agreements to acquire various construction and transportation equipment which have a weighted average of interest paid of 8.54 percent. Assets held under capital leases at December 31, 2015 and 2014 are summarized below (in thousands):
 
 
 
December 31,
 
 
2015
 
2014
Transportation equipment
 
$
4,194

 
$
4,194

Total assets held under capital lease
 
4,194

 
4,194

Less: accumulated depreciation
 
(1,388
)
 
(1,079
)
Net assets under capital lease
 
$
2,806

 
$
3,115
Minimum Lease Payments for Assets Financed under Capital Lease Arrangements
The following are the minimum lease payments for assets financed under capital lease arrangements as of December 31, 2015 and for each of the next five years and thereafter (in thousands):
 
Fiscal year:
 
2016
$
480

2017
—

2018
—

2019
—

2020
—

Thereafter
—

Total minimum lease payments under capital lease obligations
480

Less: future interest expense
(11
)
Net minimum lease payments under capital leases obligations
469

Less: current portion of net minimum lease payments
(469
)
Long-term net minimum lease payments
$
—
Principal Amounts Due under Remaining Debt Obligations
The principal amounts due under the Company’s remaining debt obligations as of December 31, 2015 is as follows (in thousands):
 
Fiscal year:
 
2016
$
2,700

2017
2,700

2018
2,700

2019
87,252

 
$
95,352