Long-Term Obligations (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of long-term debt instruments

Long-term obligations consisted of the following at December 31, 2015 and 2014 (in thousands):

		2015			2014
Senior term notes	Notes payable, maturing in 2019, secured by assets, variable interest rate (1.92% and 1.67% at 2015 and 2014, respectively)	585,000			600,000
Revolving credit	Revolving line of credit, maturing in 2019, secured by assets, variable interest rate (1.92% at 2015 and 1.67% at 2014)	232,000			135,000
Secured seller notes	Notes payable matures in 2016, secured by assets and stock of certain subsidiaries, with interest rate of 10.0%	230			230
	Total debt obligations	817,230			735,230
	Capital lease obligations and other debt	55,244			59,538
		872,474			794,768
	Less — current portion	(33,623		)	(19,356		)
		$	838,851		$	775,412

Schedule of maturities of long-term debt

The annual aggregate scheduled maturities of our long-term obligations for the five years subsequent to December 31, 2015 are presented below (in thousands):

	Debt Obligations		Capital Lease Obligations		Total
2016	30,230		3,393		33,623
2017	37,500		3,303		40,803
2018	52,500		3,587		56,087
2019	697,000		3,682		700,682
2020	—		3,188		3,188
Thereafter	—		38,091		38,091
Total	$	817,230	$	55,244	$	872,474

Summary of Leverage Ratio in effect from time to time

Each of the aforementioned margins remain applicable until the date of delivery of the compliance certificate and the financial statements, for the period ended December 31, 2015, at which time the applicable margin will be determined by reference to the leverage ratio in effect from time to time as set forth in the following table:

Pricing Tier	Consolidated Leverage Ratio	Applicable Margin for Eurodollar Loans/Letter of Credit Fees		Applicable Margin for Base Rate Loans		Commitment Fee
1	≥ 4.00:1.00	2.25	%	1.25	%	0.45	%
2	< 4.00:1.00 and ≥ 3.25:1.00	2.00	%	1.00	%	0.40	%
3	< 3.25:1.00 and ≥ 2.50:1.00	1.75	%	0.75	%	0.35	%
4	< 2.50:1.00 and ≥ 1.75:1.00	1.50	%	0.50	%	0.30	%
5	< 1.75:1.00 and ≥ 1.00:1.00	1.25	%	0.25	%	0.25	%
6	< 1.00:1.00	1.00	%	—	%	0.25	%

Scheduled principal payments for senior term notes

The following table sets forth the scheduled principal payments for the senior credit facility (in thousands):

	2016		2017		2018		2019
Senior term notes	$	30,000	$	37,500	$	52,500	$	465,000
Revolving loans	—		—		—		232,000
	$	30,000	$	37,500	$	52,500	$	697,000