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Debt Obligations | 6 Months Ended
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Jun. 30, 2020
Debt Obligations |
Debt Obligations | 6. Debt Obligations ​ Debt obligations consist of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31, | ​
​ |  | 2020 |  | 2019 |
Revolving credit facility | ​ | $ | 55,000 | ​ | $ | 28,000 | ​
Term loan | ​ | ​ | 138,750 | ​ | ​ | 150,000 | ​
Notes to former owners | ​ | ​ | 38,050 | ​ |  | 48,483 | ​
Other debt | ​ | ​ | 35 | ​ | ​ | — | ​
Total principal amount | ​ | ​ | 231,835 | ​ |  | 226,483 | ​
Less—unamortized debt issuance costs | ​ | ​ | (308) | ​ | ​ | (348) | ​
Total debt, net of unamortized debt issuance costs | ​ | ​ | 231,527 | ​ | ​ | 226,135 | ​
Less—current portion | ​ | ​ | (85) | ​ |  | (20,817) | ​
Total long-term portion of debt, net | ​ | $ | 231,442 | ​ | $ | 205,318 | ​
​ Revolving Credit Facility and Term Loan ​ In December 2019, we amended our senior credit facility (the “Facility”) provided by a syndicate of banks, increasing our borrowing capacity from $400.0 million to $600.0 million. As amended, the Facility is composed of a revolving credit line in the amount of $450.0 million and a $150.0 million term loan, and the Facility provides for a $150.0 million accordion or increase option for the revolving portion of the Facility. The amended Facility also includes a sublimit of up to $160.0 million issuable in the form of letters of credit. The Facility expires in January 2025 and is secured by a first lien on substantially all of our personal property except for assets related to projects subject to surety bonds and assets held by certain unrestricted subsidiaries and our wholly owned captive insurance company, and a second lien on our assets related to projects subject to surety bonds. In connection with the amendment in December 2019, we incurred approximately $1.4 million in financing and professional costs that are being amortized over the remaining term of the Facility. Of this amount, $0.4 million is attributable to the term loan and is being amortized using the effective interest method. The remaining $1.0 million is attributable to the revolving credit line, which combined with the previous unamortized costs of $1.3 million, is being amortized over the remaining term of the Facility on a straight-line basis as a non-cash charge to interest expense. For the term loan, we are required to make quarterly payments increasing over time from 1.25% to 3.75% of the original aggregate principal amount of the term loan, with the balance due in January 2025. As of June 30, 2020, we had $55.0 million of outstanding borrowings on the revolving credit facility, $55.6 million in letters of credit outstanding and $339.4 million of credit available. ​ There are two interest rate options for borrowings under the Facility, the Base Rate Loan Option and the Eurodollar Rate Loan Option. These rates are floating rates determined by the broad financial markets, meaning they can and do move up and down from time to time. Additional margins are then added to these two rates. ​ The following is a summary of the additional margins: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Consolidated Total Indebtedness to |
​ | ​ | Credit Facility Adjusted EBITDA |
​ |  | Less than 1.00 |  | 1.00 to 1.75 |  | 1.75 to 2.50 |  | 2.50 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 | %
​ The weighted average interest rate applicable to the borrowings under the revolving credit facility was approximately 2.2% as of June 30, 2020. The weighted average interest rate applicable to the term loan was approximately 1.7% as of June 30, 2020. ​ Certain of our vendors require letters of credit to ensure reimbursement for amounts they are disbursing on our behalf, such as to beneficiaries under our self-funded insurance programs. We have also occasionally used letters of credit to guarantee performance under our contracts and to ensure payment to our subcontractors and vendors under those contracts. Our lenders issue such letters of credit through the Facility. We have never had a claim made against a letter of credit that resulted in payments by a lender or by us and believe such a claim is unlikely in the foreseeable future. The letter of credit fees range from 1.25% to 2.00% per annum, based on the ratio of Consolidated Total Indebtedness to “Credit Facility Adjusted EBITDA,” which shall mean Consolidated EBITDA as such term is defined in the credit agreement. ​ Commitment fees are payable on the portion of the revolving loan capacity not in use for borrowings or letters of credit at any given time. These fees range from 0.20% to 0.35% per annum, based on the ratio of Consolidated Total Indebtedness to Credit Facility Adjusted EBITDA, as defined in the credit agreement. ​ The Facility contains financial covenants defining various financial measures and the levels of these measures with which we must comply. Covenant compliance is assessed as of each quarter end. ​ The Facility’s principal financial covenants include: ​ Total Leverage Ratio—The Facility requires that the ratio of our Consolidated Total Indebtedness to our Credit Facility Adjusted EBITDA not exceed 3.00 to 1.00 as of the end of each fiscal quarter. The leverage ratio as of June 30, 2020 was 0.9. ​ Fixed Charge Coverage Ratio—The Facility requires that the ratio of (a) Credit Facility Adjusted EBITDA, less non-financed capital expenditures, provision for income taxes, dividends and amounts used to repurchase stock when the Company’s Total Leverage Ratio exceeds 2.00 to 1.00 to (b) the sum of interest expense and scheduled principal payments of indebtedness be at least 1.50 to 1.00. Credit Facility Adjusted EBITDA, capital expenditures, provision for income taxes, dividends, stock repurchase payments, interest expense, and scheduled principal payments are defined under the Facility for purposes of this covenant, to be amounts for the four quarters ending as of any given quarterly covenant compliance measurement date. The fixed charge coverage ratio as of June 30, 2020 was 7.3. ​ Other Restrictions—The Facility permits acquisitions of up to $5.0 million per transaction, provided that the aggregate purchase price of such an acquisition and of acquisitions in the same fiscal year does not exceed $10.0 million. However, these limitations only apply when the Company’s Total Leverage Ratio is greater than 2.50 to 1.00. ​ While the Facility’s financial covenants do not specifically govern capacity under the Facility, if our debt level under the Facility at a quarter-end covenant compliance measurement date were to cause us to violate the Facility’s leverage ratio covenant, our borrowing capacity under the Facility and the favorable terms that we currently have could be negatively impacted by the lenders. ​ We were in compliance with all of our financial covenants as of June 30, 2020. ​ Notes to Former Owners ​ As part of the consideration used to acquire five companies, we have outstanding notes to the former owners. These notes had an outstanding balance of $38.1 million as of June 30, 2020. In conjunction with the acquisition of TAS in the second quarter of 2020, we issued a promissory note to former owners with an outstanding balance of $14.0 million as of June 30, 2020 that bears interest, payable quarterly, at a stated interest rate of 3.5%. The principal is due in April 2022. In conjunction with the acquisition of the electrical contractor in North Carolina in the first quarter of 2020, we issued a promissory note to former owners with an outstanding balance of $8.0 million as of June 30, 2020 that bears interest, payable quarterly, at a stated interest rate of 3.0%. The principal is due in equal installments in February 2023 and February 2024. In conjunction with the Walker acquisition in the second quarter of 2019, we issued a promissory note to former owners with an outstanding balance of $15.0 million as of June 30, 2020 that bears interest, payable quarterly, at a stated interest rate of 4.0%. Of the outstanding principal amount, $2.5 million is due in April 2022 and $12.5 million is due in April 2023. In conjunction with two immaterial acquisitions in 2018 and 2019, we issued notes to former owners with an outstanding balance of $1.1 million as of June 30, 2020 that bear interest, payable quarterly, at stated interest rates ranging from 3.0% - 3.5%. The principal amounts are due between July 2020 – July 2021.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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