9. Long-Term Debt

	December 31, 2016			December 31, 2015
Debt:
2015 Revolving Credit Facility	$	313,620		$	145,152
Convertible Notes		45,656			85,000
Mortgages and other		12,755			10,333
Equipment and working capital notes		—			2,832
Capital leases		363			500
Total debt		372,394			243,817
Less: debt discount, net of accretion		(2,735	)		(9,062	)
Total debt, net of unaccreted discount	$	369,659		$	234,755
Less current portion of long-term debt		(43,690	)		(3,187	)
Total long-term debt, net of unaccreted discount	$	325,969		$	231,568

Second Amended and Restated Credit Agreement

On October 22, 2015, the Company entered into a Second Amended and Restated Credit Agreement which may be amended from time to time (the “2015 Credit Agreement”). Under the 2015 Credit Agreement, the amount of the Company’s prior revolving credit facility was increased to $350 million (the “2015 Revolving Credit Facility”). The amounts available under the 2015 Revolving Credit Facility can be used for general corporate purposes, including acquisitions, and to repay existing indebtedness. The stated maturity of the 2015 Revolving Credit Facility was October 22, 2020.

The amounts available under the 2015 Revolving Credit Facility may be drawn upon in accordance with the terms of the 2015 Credit Agreement. All amounts outstanding under the 2015 Revolving Credit Facility are due on the stated maturity or such earlier time, if any, required under the 2015 Credit Agreement. The amounts owed under the 2015 Revolving Credit Facility may be prepaid at any time, subject to usual notification and breakage payment provisions. Interest on the amounts outstanding under the credit facilities is calculated using either an ABR Rate or Eurodollar Rate, plus the applicable margin. The applicable margins for Eurodollar Loans are between 1.25% to 2.00%, and for ABR Loans are between 0.25% and 1.00%. The amounts of the margins are calculated based on either a consolidated total net leverage ratio (as defined in the 2015 Credit Agreement), or the then applicable rating(s) of the Company’s debt if and then to the extent as provided in the 2015 Credit Agreement. The rate at December 31, 2016 was 1.5%. A portion of the 2015 Revolving Credit Facility may also be used for the issuance of letters of credit, and a portion of the amount of the 2015 Revolving Credit Facility is available for borrowings in certain agreed upon foreign currencies. The 2015 Credit Agreement contains various affirmative and negative covenants and restrictions, which among other things, will require the Borrowers to provide certain financial reports to the Lenders, require the Company to maintain certain financial covenants relating to consolidated leverage and interest coverage, limit maximum annual capital expenditures, and limit the ability of the Company and its subsidiaries to incur or guarantee additional indebtedness, pay dividends or make other equity distributions, purchase or redeem capital stock or debt, make certain investments, sell assets, engage in certain transactions, and effect a consolidation or merger. The 2015 Credit Agreement also contains customary events of default.

On October 21, 2016, the Company entered into an agreement to amend the 2015 Credit Agreement. This amendment, which became effective upon closing of the purchase of Stromag, which was December 30, 2016, increased the 2015 Revolving Credit Facility by $75 million to $425 million. The Company used additional borrowings under the increased facility to finance its purchase of Stromag. In addition, the amendment increased the multicurrency sublimit to $250 million and adjusted certain financial covenants. The pricing terms and maturity date under the 2015 Credit Agreement remain unchanged. The Company paid $0.6 million in fees in connection with the October 2016 amendment, which is recorded in other non-current assets.

As of December 31, 2016, the Company had $313.6 million outstanding on our 2015 Revolving Credit Facility, including $295.2 million outstanding on our USD tranche at an interest rate of 2.27% and $18.4 million outstanding on our Euro tranche at an interest rate of 1.5%. As of December 31, 2015 the Company had $145.2 million outstanding on our 2015 Revolving Credit Facility. As of December 31, 2016 and 2015, the Company had $4.1 million and $7.0 million in letters of credit outstanding, respectively. The Company had $107.3 million available to borrow under the 2015 Revolving Credit Facility at December 31, 2016 and may borrow an additional $150 million under certain circumstances.

Convertible Senior Notes

In March 2011, the Company issued Convertible Senior Notes (the “Convertible Notes”) due March 1, 2031. The Convertible Notes were guaranteed by the Company’s U.S. domestic subsidiaries. Interest on the Convertible Notes was payable semi-annually in arrears, on March 1 and September 1 of each year, commencing on September 1, 2011 at an annual rate of 2.75%. Proceeds from the offering were $81.3 million, net of fees and expenses that were capitalized. The proceeds from the offering were used to fund the Bauer Acquisition, as well as bolster the Company’s cash position.

The Convertible Notes were scheduled to mature on March 1, 2031, unless earlier redeemed, repurchased by the Company or converted, and are convertible into cash or shares, or a combination thereof, at the Company’s election. The Convertible Notes were convertible into shares of the Company’s common stock based on an initial conversion rate, subject to adjustment, of 36.0985 shares per $1,000 principal amount of notes (which represents an initial conversion price of approximately $27.70 per share of our common stock), in certain circumstances. The conversion price at December 31, 2016 was $25.59 per share. Prior to March 1, 2030, the Convertible Notes were convertible only in the following circumstances: (1) during any fiscal quarter commencing after June 30, 2011 if the last reported sale price of the Company’s common stock is greater than or equal to 130% of the applicable conversion price for at least 20 trading days in the period of 30 consecutive trading days ending on the last trading day of the preceding fiscal quarter; (2) during the 5 business day period after any 10 consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day in the measurement period was less than 97% of the product of the last reported sale price of the Company’s common stock and the conversion rate on such trading day; (3) if the Convertible Notes have been called for redemption; or (4) upon the occurrence of specified corporate transactions. On or after March 1, 2030, and ending at the close of business on the second business day immediately preceding the maturity date, holders may convert their Convertible Notes at any time, regardless of the foregoing circumstances. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of common stock, or a combination thereof, at the Company’s election.

If a fundamental change occurred, the Convertible Notes were redeemable at a price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest (including contingent interest and additional interest, if any) to, but excluding, the repurchase date. The Convertible Notes were also redeemable on each of March 1, 2018, March 1, 2021, and March 1, 2026 for cash at a price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest (including contingent interest and additional interest, if any) to, but excluding, the option repurchase date.

As of March 1, 2015, the Company had the ability to call all or part of the Convertible Notes at a redemption price equal to 100% of the principal amount of the Convertible Notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date, plus a “make-whole premium” payment in cash, shares of the Company’s common stock, or combination thereof, at the Company’s option, equal to the sum of the present values of the remaining scheduled payments of interest on the Convertible Notes to be redeemed through March 1, 2018 to, but excluding, the redemption date, if the last reported sale price of the Company’s common stock for 20 or more trading days in a period of 30 consecutive trading days ending on the trading day prior to the date the Company provides notice of redemption exceeds 130% of the conversion price in effect on each such trading day. On or after March 1, 2018, the Company could redeem for cash all or a portion of the notes at a redemption price of 100% of the principal amount of the Convertible Notes to be redeemed, plus accrued and unpaid interest (including contingent and additional interest, if any) to, but not including, the redemption date.

The Company separately accounted for the debt and equity components of the Convertible Notes to reflect the issuer’s non-convertible debt borrowing rate, which interest costs are to be recognized in subsequent periods. The note payable principal balance at the date of issuance of $85.0 million was bifurcated into a debt component of $60.5 million and an equity component of $24.5 million. The difference between the note payable principal balance and the value of the debt component is being accreted to interest expense over the term of the notes. The debt component was recognized at the present value of associated cash flows discounted using a 8.25% discount rate, the borrowing rate at the date of issuance for a similar debt instrument without a conversion feature. The Company paid approximately $3.7 million of issuance costs associated with the Convertible Notes. The Company recorded $1.0 million of debt issuance costs as an offset to additional paid-in capital. The remaining balance of $2.7 million of debt issuance costs was classified as short term debt.

On December 12, 2016 the Company gave notice to the holders of the Convertible Notes of its intention to redeem all of the Convertible Notes outstanding on January 12, 2017 (the “Redemption Date”), pursuant to the optional redemption provisions in the Indenture. The redemption price for the Convertible Notes was 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but not including, the Redemption Date plus a Make-Whole Premium equal to the present values of the remaining scheduled payments of interest on any Convertible Notes through March 1, 2018 (excluding interest accrued to, but excluding, the Redemption Date). In lieu of receiving the redemption price, holders of the Notes could surrender their Convertible Notes for conversion at any time before January 9, 2017. The conversion rate of the Convertible Notes was 39.0809 shares of the Company’s common stock, for each $1,000 of outstanding principal of the Convertible Notes. As of December 31, 2016 approximately $39.3 million notes were converted resulting in the issuance of 1.5 million shares of the Company’s common stock. As a result of the conversion, the Company incurred a loss on extinguishment of debt of approximately $1.9 million and the carrying value of the Convertible Notes was $42.9 million as of December 31, 2016. In January 2017, the remaining principal was converted to common stock, with the exception of $0.9 million that was redeemed for cash.

The carrying amount of the principal amount of the liability component, the unamortized discount, and the net carrying amount are as follows as of December 31,:

	2016		2015

Principal amount of debt	$	85,000	$	85,000
Redemption of convertible notes		39,344		-
Unamortized discount		2,735		9,062
Carrying value of debt	$	42,921	$	75,938

Interest expense associated with the Convertible Notes consisted of the following:

	Year to Date Ended
	December 31, 2016		December 31, 2015		December 31, 2014
Contractual coupon rate of interest	$	2,338	$	2,338	$	2,338
Accretion of Convertible Notes discount and amortization of deferred financing costs		4,426		4,048		3,760
Interest expense for the convertible notes	$	6,764	$	6,386	$	6,098

Mortgages

Heidelberg Germany

During 2015, a foreign subsidiary of the Company entered into a mortgage with a bank for €1.5 million, or $1.7 million, secured by its facility in Heidelberg, Germany to replace its previously existing mortgage. The mortgage has an interest rate of 1.79% which is payable in monthly installments through August 2023. The mortgage had a remaining principal balance of €1.3 million or $1.4 million and €1.5 million or $1.6 million at December 31, 2016 and December 31, 2015, respectively.

Esslingen Germany

During 2015, a foreign subsidiary of the Company entered into a mortgage with a bank for €6.0 million, or $6.7 million, secured by its facility in Esslingen, Germany. The mortgage has an interest rate of 2.5% per year which is payable in annual interest payments of €0.1 million or $0.1 million to be paid in monthly installments. The mortgage had a remaining principal balance of €6.0 million, or $6.3 million, and €6.0 million, or $6.5 million, at December 31, 2016 and December 31, 2015, respectively. The principal portion of the mortgage will be due in a lump-sum payment in May 2019.

Zlate Moravce Slovakia

During 2016, a foreign subsidiary of the Company entered in to a loan with a bank to equip its facility in Zlate Moravce, Slovakia. As of December 31, 2016, the total principal outstanding was €2.5 million, or $2.6 million, and is guaranteed by land security at its parent company facility in Esslingen, Germany. The loan is due in installments from 2016 through 2020, with an interest rate of 1.95%.

Angers France

During 2015, a foreign subsidiary of the Company entered into a mortgage with a bank for €2.0 million, or $2.3 million, secured by its facility in Angers, France. The mortgage has an interest rate of 1.85% per year which is payable in monthly installments from June 2016 until May 2025. The mortgage had a balance of €1.9 million, or $2.0 million and €2.0 million, or $2.2 million, at December 31, 2016 and December 31, 2015, respectively.

Capital Leases

The Company leases certain equipment under capital lease arrangements, whose obligations are included in both short-term and long-term debt. Capital lease obligations amounted to approximately $0.4 million and $0.5 million at December 31, 2016 and 2015, respectively. Assets subject to capital leases are included in property, plant and equipment with the related amortization recorded as depreciation expense.

Overdraft Agreements

Certain of our foreign subsidiaries maintain overdraft agreements with financial institutions. There were no borrowings as of December 31, 2016 or 2015 under any of the overdraft agreements.