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Financial Instruments | 9 Months Ended
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Sep. 30, 2016
Long-term Debt and Capital Lease Obligations [Abstract] |
Financial Instruments | 14. Financial Instruments Long-term debt, principally to banks and bondholders, consists of:
(in thousands, except interest rates) |  | September 30, 2016 |  | December 31, 2015
Private placement with a fixed interest rate of 6.84%, due 2017 |  | $50,000 |  |  | $50,000 |
Credit agreement with borrowings outstanding at an end of period interest rate of 2.53% in 2016 and 2.36% in 2015 (including the effect of interest rate hedging transactions, as described below) |  | 425,000 |  |  | 215,000 |
Various notes and mortgages, at an average end of period rate of 5.50% in 2016 and 2015, due in varying amounts through 2021 |  | 84 |  |  | 96 |
Obligation under capital lease, matures 2022 |  | 16,381 |  |  | - |
Long-term debt |  | 491,465 |  |  | 265,096 |
Less: current portion |  | (1,462 | ) |  | (16 | )
Long-term debt, net of current portion |  | $490,003 |  |  | $265,080 |
A note agreement and guaranty (“Prudential Agreement”) was originally entered into in October 2005 with the Prudential Insurance Company of America, and certain other purchasers, with interest at 6.84%. The remaining principal under the Prudential Agreement is $50 million, and is due on the maturity date of October 25, 2017. At the noteholders’ election, certain prepayments may also be required in connection with certain asset dispositions or financings. The notes may not otherwise be prepaid without a premium, under certain market conditions. The Prudential Agreement contains customary terms, as well as affirmative covenants, negative covenants, and events of default, comparable to those in our current principal credit facility agreement (as described below). The Prudential Agreement has been amended a number of times, most recently in April 2016, in order to maintain terms comparable to our current principal credit facility. For disclosure purposes, we are required to measure the fair value of outstanding debt on a recurring basis. As of September 30, 2016, the fair value of this debt was approximately $53.5 million, and was measured using active market interest rates, which would be considered Level 2 for fair value measurement purposes. On April 8, 2016, we entered into a $550 million unsecured Five-Year Revolving Credit Facility Agreement (the “Credit Agreement”) which amends and restates the prior $400 million Agreement, entered into on June 18, 2015 (the “Prior Agreement”). Under the Credit Agreement, $425 million of borrowings were outstanding as of September 30, 2016. The applicable interest rate for borrowings was LIBOR plus a spread, based on our leverage ratio at the time of borrowing. At the time of the last borrowing on September 16, 2016, the spread was 1.500%. The spread was based on a pricing grid, which ranged from 1.250% to 1.750%, based on our leverage ratio. Based on our maximum leverage ratio and our Consolidated EBITDA, and without modification to any other credit agreements, as of September 30, 2016, we would have been able to borrow an additional $125 million under the Agreement. The Credit Agreement contains customary terms, as well as affirmative covenants, negative covenants and events of default comparable to those in the Prior Agreement. The Borrowings are guaranteed by certain of the Company's subsidiaries. Our ability to borrow additional amounts under the Credit Agreement is conditional upon the absence of any defaults, as well as the absence of any material adverse change (as defined in the Credit Agreement). In connection with the acquisition of AAC, the Company has a long-term capital lease obligation for real property in Salt Lake City, Utah. The lease has an implied interest rate of 6.08% and matures in 2022. The following schedule presents future minimum annual lease payments under the capital lease obligation and the present value of the minimum lease payments, as of September 30, 2016.
Years ending December 31, | (in thousands)
2016 |  | $674 |
2017 |  | 2,696 |
2018 |  | 2,743 |
2019 |  | 2,743 |
2020 |  | 2,790 |
Thereafter |  | 5,628 |
Total minimum lease payments |  | 17,274 |
Less: Amount representing interest |  | (893 | )
Present value of minimum lease payments |  | $16,381 |
On May 6, 2016, we terminated our interest rate swap agreements that had effectively fixed the interest rate on up to $120 million of revolving credit borrowings, in order to enter into a new interest rate swap with a greater notional amount, and the same maturity as the Credit Agreement. We paid $5.2 million to terminate the swap agreements and that cost will be amortized into interest expense through June 2020. On May 9, 2016, we entered into interest rate hedges for the period May 16, 2016 through March 16, 2021. These transactions have the effect of fixing the LIBOR portion of the effective interest rate (before addition of the spread) on $300 million of indebtedness drawn under the Credit Agreement at the rate of 1.245% during the period. Under the terms of these transactions, we pay the fixed rate of 1.245% and the counterparties pay a floating rate based on the one-month LIBOR rate at each monthly calculation date, which on September 16, 2016 was 0.530%. The net effect is to fix the effective interest rate on $300 million of indebtedness at 1.245%, plus the applicable spread, during the swap period. On September 16, 2016, the all-in-rate on the $300 million of debt was 2.745%. These interest rate swaps are accounted for as a hedge of future cash flows, as further described in Note 15 of the Notes to Consolidated Financial Statements. No cash collateral was received or pledged in relation to the swap agreements. Under the Credit Agreement and Prudential Agreement, we are currently required to maintain a leverage ratio (as defined in the agreements) of not greater than 3.50 to 1.00 and minimum interest coverage (as defined) of 3.00 to 1.00. As of September 30, 2016, our leverage ratio, including the pro-forma effect of the acquisition, was 2.38 to 1.00 and our interest coverage ratio was 12.93 to 1.00. We may purchase our Common Stock or pay dividends to the extent our leverage ratio remains at or below 3.50 to 1.00, and may make acquisitions with cash provided our leverage ratio would not exceed 3.50 to 1.00 after giving pro forma effect to the acquisition. Indebtedness under each of the Prudential Agreement and the Credit Agreement is ranked equally in right of payment to all unsecured senior debt. We were in compliance with all debt covenants as of September 30, 2016.

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- Definition The entire disclosure for long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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