NOTE M — DEBT AND OTHER OBLIGATIONS

Debt consists of the following:


(in thousands)	As of March 31, 2019		As of December 31, 2018
Debt:
Term Loan B	$	499,950	$	501,213
Seller notes		7,402		4,506
Financing leases and other		1,212		14,361
Total debt before unamortized discount and debt issuance costs		508,564		520,080
Unamortized discount and debt issuance costs, net		(9,264)		(9,407)
Total debt	$	499,300	$	510,673
Current portion of long-term debt:
Term Loan B	$	5,050	$	5,050
Seller notes		3,288		2,513
Financing leases and other		339		1,020
Total current portion of long-term debt		8,677		8,583
Long-term debt:	$	490,623	$	502,090

Refinancing of Credit Agreement and Term B Borrowings

On March 6, 2018, we entered into a $605.0 million Senior Credit Facility (the “Credit Agreement”). The Credit Agreement provides for (i) a revolving credit facility with an initial maximum aggregate amount of availability of $100.0 million that matures in March 2023 and (ii) a $505.0 million Term Loan B facility due in quarterly principal installments commencing June 29, 2018, with all remaining outstanding principal due at maturity in March 2025. Availability under the revolving credit facility is reduced by outstanding letters of credit, which were approximately $5.2 million as of March 31, 2019. We may (a) increase the aggregate principal amount of any outstanding tranche of term loans or add one or more additional tranches of term loans under the loan documents, and/or (b) increase the aggregate principal amount of revolving commitments or add one or more additional revolving loan facilities under the loan documents by an aggregate amount of up to the sum of (1) $125.0 million and (2) an amount such that, after giving effect to such incurrence of such amount (but excluding the cash proceeds of such incremental facilities and certain other indebtedness, and treating all commitments in respect of revolving indebtedness as fully drawn), the consolidated first lien net leverage ratio is equal to or less than 3.80 to 1.00, if certain conditions are satisfied, including the absence of a default or an event of default under the Credit Agreement at the time of the increase and that we obtain the consent of each lender providing any incremental facility.

Our obligations under the Credit Agreement are currently guaranteed by our material domestic subsidiaries and will from time to time be guaranteed by, subject in each case to certain exceptions, any domestic subsidiaries that may become material in the future. Subject to certain exceptions, the Credit Agreement is secured by first-priority perfected liens and security interests in substantially all of our personal property and each subsidiary guarantor.

Borrowings under the Credit Agreement bear interest at a variable rate equal to (i) LIBOR plus a specified margin, or (ii) the base rate (which is the highest of (a) Bank of America, N.A.’s prime rate, (b) the federal funds rate plus 0.50% or (c) the sum of 1% plus one-month LIBOR) plus a specified margin. For the three months ended March 31, 2019, the weighted average interest rate on outstanding borrowings under our Term Loan B facility was approximately 6.0%. We have entered into interest rate swap agreements to hedge certain of our interest rate exposures, as more fully disclosed in Note O - "Derivative Financial Instruments."

We must also pay (i) an unused commitment fee ranging from 0.375% to 0.500% per annum of the average daily unused portion of the aggregate revolving credit commitments under the Credit Agreement, and (ii) a per annum fee equal to (a) for each performance standby letter of credit outstanding under the Credit Agreement with respect to nonfinancial contractual obligations, 50% of the applicable margin over LIBOR under the revolving credit facility in effect from time to time multiplied by the daily amount available to be drawn under such letter of credit, and (b) for each other letter of credit outstanding under the Credit Agreement, the applicable margin over LIBOR under the revolving credit facility in effect from time to time multiplied by the daily amount available to be drawn for such letter of credit.

The Credit Agreement contains various restrictions and covenants, including: i) requirements that we maintain certain financial ratios at prescribed levels, ii) a prohibition on payment of dividends and other distributions and iii) restrictions on our ability and certain of our subsidiaries to consolidate or merge, create liens, incur additional indebtedness, dispose of assets, or consummate acquisitions outside the healthcare industry. The Credit Agreement includes the following financial covenants applicable for so long as any revolving loans and/or revolving commitments remain outstanding under the Credit Agreement: (i) a maximum consolidated first lien net leverage ratio (defined as, with certain adjustments and exclusions, the ratio of consolidated first-lien indebtedness to consolidated net income before interest, taxes, depreciation, amortization, non-cash charges and certain other items ("EBITDA") for the most recently ended period of four fiscal quarters for which financial statements are available) of 5.00 to 1.00 for the fiscal quarter ended March 31, 2019; 4.75 to 1.00 for the fiscal quarters ended June 30, 2019 through March 31, 2020; 4.50 to 1.00 for the fiscal quarters ended June 30, 2020 through March 31, 2021; 4.25 to 1.00 for the fiscal quarters ended June 30, 2021 through March 31, 2022; and 3.75 to 1.00 for the fiscal quarter ended June 30, 2022 and the last day of each fiscal quarter thereafter; and (ii) a minimum interest coverage ratio (defined as, with certain adjustments, the ratio of our EBITDA to consolidated interest expense to the extent paid or payable in cash) of 2.75 to 1.00 as of the last day of any fiscal quarter. We were in compliance with all covenants at March 31, 2019.

The Credit Agreement also contains customary events of default. If an event of default under the Credit Agreement occurs and is continuing, then the lenders may declare any outstanding obligations under the Credit Agreement to be immediately due and payable; provided, however, that the occurrence of an event of default as a result of a breach of a financial covenant under the Credit Agreement does not constitute a default or event of default with respect to any term facility under the Credit Agreement unless and until the required revolving lenders shall have terminated their revolving commitments and declared all amounts outstanding under the revolving credit facility to be due and payable. In addition, if we or any subsidiary guarantor becomes the subject of voluntary or involuntary proceedings under any bankruptcy, insolvency, or similar law, then any outstanding obligations under the Credit Agreement will automatically become immediately due and payable. Loans outstanding under the Credit Agreement will bear interest at a rate of 2.00% per annum in excess of the otherwise applicable rate (i) upon acceleration of such loans, (ii) while a payment event of default exists or (iii) upon the lenders’ request, during the continuance of any other event of default.

Seller Notes

We typically issue subordinated promissory notes ("Seller Notes") as a part of the consideration transferred when making acquisitions. The Seller Notes are unsecured and are presented net of unamortized discount of $0.3 million and $0.2 million as of March 31, 2019 and December 31, 2018, respectively. We measure these instruments at their estimated fair values as of the respective acquisition dates. The stated interest rates on these instruments range from 2.00% to 3.00%. Principal and interest are payable in monthly, quarterly, or annual installments and mature through November 2023.

Scheduled maturities of debt at March 31, 2019 were as follows:


(in thousands)
2019 (remainder of year)	$	5,974
2020		8,220
2021		7,193
2022		5,849
2023		5,329
Thereafter		475,999
Total debt before unamortized discount and debt issuance costs, net		508,564
Unamortized discount and debt issuance costs, net		(9,264)
Total debt	$	499,300