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Long-Term Debt Obligations (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Long-Term Debt Obligations |
Schedule of components of long-term debt obligations | Long-term debt obligations consist of the following (in thousands):
|  | December 31, |
--- | --- | --- | ---
|  | 2012 |  | 2011 |
Revolving credit facility |  | $ | — |  | $ | — |
Other debt |  |  | 2,400 |  |  | 2,700 |
Notes to former owners |  |  | 5,000 |  |  | 12,681 |
Total debt |  |  | 7,400 |  |  | 15,381 |
Less—current portion |  |  | (300 | ) |  | (632 | )
Total long-term portion of debt |  | $ | 7,100 |  | $ | 14,749 |
Schedule of future principal payments of long-term debt | At December 31, 2012, future principal payments of long-term debt are as follows (in thousands):
Year ended December 31— |  |  |  |
2013 |  | $ | 300 |
2014 |  |  | 5,300 |
2015 |  |  | 300 |
2016 |  |  | 300 |
2017 |  |  | 300 |
Thereafter |  |  | 900 |
|  | $ | 7,400 |
Schedule of interest expense | Interest expense included the following primary elements (in thousands):
|  | Year Ended December 31, |
--- | --- | --- | ---
|  | 2012 |  | 2011 |  | 2010 |
Interest expense on notes to former owners |  | $ | 255 |  | $ | 795 |  | $ | 627 |
Interest expense on borrowings and unused commitment fees |  |  | 444 |  |  | 243 |  |  | 287 |
Letter of credit fees |  |  | 667 |  |  | 622 |  |  | 447 |
Amortization of debt financing costs |  |  | 229 |  |  | 226 |  |  | 338 |
Total |  | $ | 1,595 |  | $ | 1,886 |  | $ | 1,699 |
Schedule of reconciliation of Credit Facility Adjusted EBITDA to net income | The following is a reconciliation of Credit Facility Adjusted EBITDA to net income (in thousands):
Net income including noncontrolling interests |  | $ | 11,849 |
Income taxes—continuing operations |  |  | 10,045 |
Interest expense, net |  |  | 1,571 |
Depreciation and amortization expense |  |  | 20,630 |
Stock compensation expense |  |  | 2,797 |
Income taxes—discontinued operations |  |  | 212 |
EBITDA attributable to noncontrolling interests |  |  | 275 |
Pre-acquisition results of acquired companies, as defined under the Facility |  |  | 730 |
Credit Facility Adjusted EBITDA |  | $ | 48,109 |
Schedule of market rates relating to interest options under the Facility | For illustrative purposes, the following are the respective market rates as of December 31, 2012 relating to interest options under the Facility:
Base Rate Loan Option: |  |  |  |
Federal Funds Rate plus 0.50% |  |  | 0.67 | %
Wells Fargo Bank, N.A. Prime Rate |  |  | 3.25 | %
One-month LIBOR plus 1.00% |  |  | 1.21 | %
Eurodollar Rate Loan Option: |  |  |  |
One-month LIBOR |  |  | 0.21 | %
Six-month LIBOR |  |  | 0.51 | %
Summary of additional margins |
|  | Consolidated Total Indebtedness to Credit Facility Adjusted EBITDA |
--- | --- | --- | ---
|  | Less than 0.75 |  | 0.75 to 1.25 |  | 1.25 to 2.00 |  | 2.00 to 2.50 |  | 2.50 or greater |
Additional Per Annum Interest Margin Added Under: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base Rate Loan Option |  |  | 0.75 | % |  | 1.00 | % |  | 1.25 | % |  | 1.50 | % |  | 1.75 | %
Eurodollar Rate Loan Option |  |  | 1.75 | % |  | 2.00 | % |  | 2.25 | % |  | 2.50 | % |  | 2.75 | %
Letter of credit fees |  |  | 1.30 | % |  | 1.50 | % |  | 1.70 | % |  | 1.90 | % |  | 2.10 | %
Commitment fees on any portion of the Revolving Loan capacity not in use for borrowings or letters of credit at any given time |  |  | 0.25 | % |  | 0.30 | % |  | 0.35 | % |  | 0.45 | % |  | 0.50 | %

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- Definition Tabular disclosure of all significant reconciling items in the reconciliation of adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) to net income for debt covenant compliance. + References No definition available. + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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