Long-Term Debt | 4. Long-Term Debt As of December 31, 2017 and September 30, 2017 , the Company’s long-term debt consisted of the following: (in thousands) December 31, September 30, Term loan principal; principal and interest are due in quarterly installments through January 31, 2021 $ 705,643 $ 632,476 Original issue discount on term loan, net of accumulated amortization (1,352 ) (901 ) Deferred financing costs, net of accumulated amortization (4,933 ) (5,122 ) Senior secured revolving credit facility 5,000 — 704,358 626,453 Less current portion 12,331 6,554 Long-term debt $ 692,027 $ 619,899 Senior Secured Credit Facilities NMHI's senior credit agreement (the “senior credit agreement”), as amended, governs a $730.0 million Tranche B term loan facility (the “term loan facility”), of which $50.0 million was deposited in a cash collateral account in support of the issuance of letters of credit under an institutional letter of credit facility (the “institutional letter of credit facility”), and a $160.0 million senior secured revolving credit facility (the “senior revolver”). The term loan facility matures on January 31, 2021, a portion of the commitments under the senior revolver matures on January 31, 2019 and a portion of the commitments under the senior revolver matures on January 31, 2021, as described below. All of the obligations under the senior secured credit facilities are guaranteed by NMHH and the subsidiary guarantors named therein. The senior credit agreement provides that NMHI may make one or more offers to the lenders, and consummate transactions with individual lenders that accept the terms contained in such offers, to extend the maturity date of the lender’s term loans and/or revolving commitments, subject to certain conditions, and any extended term loans or revolving commitments will constitute a separate class of term loans or revolving commitments. On October 24, 2017, NMHI entered into Amendment No. 6 to its senior credit agreement which provided for an incremental $75.0 million term loan. The net proceeds of the incremental term loan were used by the Company for the acquisition of Mentis Neuro Rehabilitation, LLC, with any excess proceeds to be used for general corporate purposes. On November 21, 2017, NMHI entered into Amendment No. 7 to its senior credit agreement which increased the aggregate revolving commitments from $120.0 million to $160.0 million and extended the maturity date for $90.0 million of the revolving commitments (the “Extended Revolving Commitments") to January 31, 2021. The terms of the remaining $70.0 million of the revolving commitments (the "Initial Revolving Commitments"), which mature on January 31, 2019, remain unchanged. All of the other terms of the Extended Revolving Commitments are identical to the Initial Revolving Commitments, except that the applicable margin for the Extended Revolving Commitments will decrease by 0.25% per annum when the Initial Revolving Commitments are terminated or expire. The senior revolver includes borrowing capacity available for letters of credit and for borrowings on same-day notice, referred to as the “swingline loans.” Any issuance of letters of credit or borrowing on a swingline loan will reduce the amount available under the senior revolver. As of December 31, 2017 , NMHI had $5.0 million outstanding under the senior revolver, $47.4 million of letters of credit issued under the institutional letter of credit facility and $2.9 million of standby letters of credit under the senior revolver. Borrowings under the term loan facility bear interest, at our option, at: (i) an alternate base rate ("ABR") equal to the greater of (a) the prime rate of Barclays Bank PLC, (b) the federal funds rate plus 1/2 of 1.0%, and (c) the Eurodollar rate for an interest period of one-month plus 100 basis points (provided that the ABR applicable to the term loan facility will not be less than 2.00% per annum), plus 2.00% ; or (ii) the Eurodollar rate (provided that the Eurodollar rate applicable to the term loan facility will not be less than 0.75% per annum), plus 3.00% . Borrowings under the revolving and swingline loans bear interest at our option at (i) an ABR equal to the greater of (a) the prime rate of Barclays Bank PLC, (b) the federal funds rate plus 1/2 of 1.0%, and (c) the Eurodollar rate for an interest period of one-month plus 100 basis points (provided that the ABR applicable to the term loan facility will not be less than 2.00% per annum), plus 2.25% ; or (ii) the Eurodollar rate (provided that the Eurodollar rate applicable to the term loan facility will not be less than 0.75% per annum), plus 3.25% . NMHI is also required to pay a commitment fee to the lenders under the senior revolver at an initial rate of 0.50% of the average daily unutilized commitments thereunder. NMHI must also pay customary letter of credit fees. The senior credit agreement requires NMHI to make mandatory prepayments, subject to certain exceptions, on a percentage of NMHI's annual Excess Cash Flow, as defined in the senior credit agreement. NMHI determines whether or not a mandatory prepayment is required at the end of each fiscal year. NMHI was not required to make a prepayment for the fiscal year ended September 30, 2017 . Covenants The senior credit agreement contains negative covenants, including, among other things, limitations on the Company’s ability to incur additional debt, create liens on assets, transfer or sell assets, pay dividends, redeem stock or make other distributions or investments, and engage in certain transactions with affiliates. The senior credit agreement contains a springing financial covenant. If, at the end of any fiscal quarter, the Company’s outstanding borrowings under the senior revolver exceeds 30% of the commitments thereunder, it is required to maintain at the end of each such fiscal quarter a consolidated first lien leverage ratio of not more than 5.50 to 1.00 . This consolidated first lien leverage ratio stepped down to 5.00 to 1.00 in the fiscal quarter ending March 31, 2017. The springing financial covenant was not in effect as of December 31, 2017 or September 30, 2017 as the Company’s usage of the senior revolver did not exceed the threshold for each quarter. Derivatives On January 20, 2015, NMHI entered into two interest rate swap agreements in an aggregate notional amount of $375.0 million in order to reduce the variability of cash flows of our variable rate debt. NMHI entered into these interest rate swaps to hedge the risk of changes in the floating rate of interest on borrowings under the term loan. Under the terms of the swaps, NMHI will receive from the counterparty a quarterly payment based on a rate equal to the greater of 3-month LIBOR or 1.00% per annum, and NMHI will make payments to the counterparty based on a fixed rate of 1.795% per annum, in each case on the notional amount of $375.0 million , settled on a net payment basis. The swap agreements expire on March 31, 2020. The fair value of the swap agreements, which represents the price that would be received to transfer agreement in an orderly transaction between market participants, was an asset of $2.1 million and a liability of $0.2 million as of December 31, 2017 and September 30, 2017 , respectively. The fair value was recorded in Prepaid expenses and other current assets or Other accrued liabilities on the Company’s consolidated balance sheet, and was determined based on pricing models and independent formulas using current assumptions. Hedge ineffectiveness, if any, associated with the swap is recorded as income or expense in the period incurred. During the three months ended December 31, 2017 , the ineffective portion of gain resulting from changes in fair value was $0.1 million which was recorded in Other income, net. There was no hedge ineffectiveness recorded during the three months ended December 31, 2016. No amounts were excluded from ineffectiveness testing for the three months ended December 31, 2017 and 2016. |