Long-Term Debt Obligations (Tables)

12 Months Ended

Dec. 31, 2015

Long-Term Debt Obligations

Schedule of components of long-term debt obligations

        Long-term debt obligations consist of the following (in thousands):

	December 31,
	2015			2014
Revolving credit facility	$	10,000		$	38,500
Notes to former owners		1,000			1,000
Capital lease obligations		507			846
Total debt		11,507			40,346
Less—current portion		(751	)		(317	)
Total long-term portion of debt	$	10,756		$	40,029

Schedule of future principal payments of long-term debt

        At December 31, 2015, future principal payments of debt are as follows (in thousands):

Year ended December 31—
2016	$	751
2017		663
2018		72
2019		10,021
2020		—
Thereafter		—
	$	11,507

Schedule of interest expense

        Interest expense included the following primary elements (in thousands):

	Year Ended December 31,
	2015		2014		2013
Interest expense on notes to former owners	$	25	$	38	$	97
Interest expense on borrowings and unused commitment fees		692		790		278
Letter of credit fees		719		747		731
Amortization of debt financing costs		317		283		245
Total	$	1,753	$	1,858	$	1,351

Schedule of reconciliation of Credit Facility Adjusted EBITDA to net income

        The following is a reconciliation of Credit Facility Adjusted EBITDA to net income for 2015 (in thousands):

Net income including noncontrolling interests	$	57,440
Income taxes—continuing operations		31,224
Interest expense, net		1,681
Depreciation and amortization expense		23,416
Stock compensation expense		5,609
Goodwill impairment		—
EBITDA attributable to noncontrolling interests		(9,027	)
Pre-acquisition results of acquired companies, as defined under the Facility		373
Credit Facility Adjusted EBITDA	$	110,716

Schedule of market rates relating to interest options under the Facility

        The following are the respective market rates as of December 31, 2015 relating to interest options under the Facility:

Base Rate Loan Option:
Federal Funds Rate plus 0.50%	0.87	%
Wells Fargo Bank, N.A. Prime Rate	3.50	%
One-month LIBOR plus 1.00%	1.43	%
Eurodollar Rate Loan Option:
One-month LIBOR	0.43	%
Six-month LIBOR	0.86	%

Summary of additional margins

	Consolidated Total Indebtedness to Credit Facility Adjusted EBITDA
	Less than 0.75			0.75 to 1.50			1.50 to 2.25			2.25 or greater
Additional Per Annum Interest Margin Added Under:
Base Rate Loan Option		0.25	%		0.50	%		0.75	%		1.00	%
Eurodollar Rate Loan Option		1.25	%		1.50	%		1.75	%		2.00	%
Letter of credit fees		1.25	%		1.50	%		1.75	%		2.00	%
Commitment fees on any portion of the Revolving Loan capacity not in use for borrowings or letters of credit at any given time		0.20	%		0.25	%		0.30	%		0.35	%