Financing arrangements

Financing arrangements consisted of the following:



	December 31, 2017									December 31, 2016
(In thousands)	Principal Amount			Unamortized Discount and Debt Issuance Costs			Total Debt			Principal Amount			Unamortized Discount and Debt Issuance Costs			Total Debt
2017 Convertible Notes	$	—		$	—		$	—		$	83,256		$	(268	)	$	82,988
2021 Convertible Notes	100,000			(22,643		)	77,357			100,000			(27,100		)	72,900
Amended ABL Facility	81,600			—			81,600			—			—			—
Other debt	1,518			—			1,518			380			—			380
Total debt	183,118			(22,643		)	160,475			183,636			(27,368		)	156,268
Less: current portion	(1,518		)	—			(1,518		)	(83,636		)	268			(83,368		)
Long-term debt	$	181,600		$	(22,643	)	$	158,957		$	100,000		$	(27,100	)	$	72,900

2017 Convertible Notes. In September 2010, we issued $172.5 million of unsecured convertible senior notes (“2017 Convertible Notes”) that matured on October 1, 2017. The notes bore interest at a rate of 4.0% per year, payable semiannually in arrears on April 1 and October 1 of each year. The conversion rate was 90.8893 shares of our common stock per $1,000 principal amount of notes (equivalent to a conversion price of $11.00 per share of common stock). In 2016, we repurchased $89.3 million aggregate principal amount of our 2017 Convertible Notes for $87.3 million and recognized a net gain of $1.6 million reflecting the difference in the amount paid and the net carrying value of the extinguished debt, including debt issuance costs. As of December 31, 2016, $83.3 million aggregate principal amount remained outstanding, all of which were repaid upon maturity in October 2017.

2021 Convertible Notes. In December 2016, we issued $100.0 million of unsecured convertible senior notes (“2021 Convertible Notes”) that mature on December 1, 2021, unless earlier converted by the holders pursuant to the terms of the notes. The notes bear interest at a rate of 4.0% per year, payable semiannually in arrears on June 1 and December 1 of each year.

Holders may convert the notes at their option at any time prior to the close of business on the business day immediately preceding June 1, 2021, only under the following circumstances:

•

during any calendar quarter commencing after the calendar quarter ending on March 31, 2017 (and only during such calendar quarter), if the last reported sale price of our common stock for at least 20 trading days (regardless of whether consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price of the notes in effect on each applicable trading day;


•	during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of notes for each trading day was less than 98% of the last reported sale price of our common stock on such date multiplied by the conversion rate on each such trading day; or


•	upon the occurrence of specified corporate events, as described in the indenture governing the notes, such as a consolidation, merger, or share exchange.

On or after June 1, 2021 until the close of business on the business day immediately preceding the maturity date, holders may convert their notes at any time, regardless of whether any of the foregoing conditions have been satisfied. As of February 23, 2018, the notes were not convertible.

The notes are convertible into, at our election, cash, shares of common stock, or a combination of both, subject to satisfaction of specified conditions and during specified periods, as described above. If converted, we currently intend to pay cash for the principal amount of the notes converted. The conversion rate is initially 107.1381 shares of our common stock per $1,000 principal amount of notes (equivalent to an initial conversion price of $9.33 per share of common stock), subject to adjustment in certain circumstances. We may not redeem the notes prior to their maturity date.

In accordance with accounting guidance for convertible debt with a cash conversion option, we separately accounted for the debt and equity components of the notes in a manner that reflected our estimated nonconvertible debt borrowing rate. We estimated the fair value of the debt component of the notes to be $75.2 million at the issuance date, assuming a 10.5% non-convertible borrowing rate. The carrying amount of the equity component was determined to be approximately $24.8 million by deducting the fair value of the debt component from the principal amount of the notes, and was recorded as an increase to additional paid-in capital, net of the related deferred tax liability of $8.7 million. The excess of the principal amount of the debt component over its carrying amount (the “debt discount”) is being amortized as interest expense over the term of the notes using the effective interest method.

We allocated transaction costs related to the issuance of the notes, including underwriting discounts, of $0.9 million and $2.7 million to the equity and debt components, respectively. Issuance costs attributable to the equity component were netted against the equity component recorded in additional paid-in capital. The amount of the equity component was $15.2 million at the time of issuance (net of issuance costs and the deferred tax liability related to the conversion feature) and is not remeasured as long as it continues to meet the conditions for equity classification.

The $2.7 million of issuance costs attributable to the debt component were netted against long-term debt and are being amortized to interest expense over the term of the notes using the effective interest method. As of December 31, 2017, the carrying amount of the debt component was $77.4 million, which is net of the unamortized debt discount and issuance costs of $20.4 million and $2.2 million, respectively. Including the impact of the debt discount and related deferred debt issuance costs, the effective interest rate on the notes is approximately 11.3%.

Revolving Credit Facility. In March 2015, we entered into a Third Amended and Restated Credit Agreement (the “Credit Agreement”) which provided for a $200.0 million revolving loan facility available for borrowings and letters of credit through March 2020. In December 2015, the Credit Agreement was amended, decreasing the revolving credit facility to $150.0 million and subsequently, we terminated the Credit Agreement in May 2016, replacing it with an asset-based revolving loan facility as discussed further below. As of the date of termination, we had no outstanding borrowings under the Credit Agreement. In the second quarter of 2016, we recognized a non-cash charge of $1.1 million in interest expense for the write-off of debt issuance costs in connection with the termination.

Asset-Based Loan Facility. In May 2016, we entered into an asset-based revolving credit agreement (the “ABL Facility”) which replaced the terminated Credit Agreement. The ABL Facility had a termination date of March 6, 2020 and provided financing of up to $90.0 million available for borrowings (inclusive of letters of credit) and subject to certain conditions, could be increased to a maximum capacity of $150.0 million. In October 2017, we entered into an Amended and Restated Credit Agreement (the “Amended ABL Facility”) which amends and restates our previous ABL Facility and increases the borrowing capacity from $90.0 million to $150.0 million, while also reducing applicable borrowing rates and fee terms. Subject to certain conditions, the Amended ABL Facility can be increased up to a maximum capacity of $225.0 million.

The Amended ABL Facility terminates on October 17, 2022; however, the Amended ABL Facility has a springing maturity date that will accelerate the maturity of the Amended ABL Facility to September 1, 2021 if, prior to such date, the 2021 Convertible Notes have not either been repurchased, redeemed, converted or we have not provided sufficient funds to repay the 2021 Convertible Notes in full on their maturity date. For this purpose, funds may be provided in cash to an escrow agent or a combination of cash to an escrow agent and the assignment of a portion of availability under the Amended ABL Facility. The Amended ABL Facility requires compliance with a minimum fixed charge coverage ratio and minimum unused availability of $25.0 million to utilize borrowings or assignment of availability under the Amended ABL Facility towards funding the repayment of the 2021 Convertible Notes.

Borrowing availability under the Amended ABL Facility is calculated based on eligible accounts receivable, inventory, and, subject to satisfaction of certain financial covenants as described below, composite mats included in the rental fleet, net of reserves and limits on such assets included in the borrowing base calculation. To the extent pledged by us, the borrowing base calculation shall also include the amount of eligible pledged cash. The lender may establish such reserves, in part based on appraisals of the asset base, and other limits at its discretion which could reduce the amounts otherwise available under the Amended ABL Facility. Availability associated with eligible rental mats will also be subject to maintaining a minimum consolidated fixed charge coverage ratio and a minimum level of operating income for the Mats and Integrated Services segment. As of December 31, 2017, our total borrowing base availability under the Amended ABL Facility was $136.2 million, of which, $81.6 million was drawn, resulting in remaining availability of $54.6 million.

Under the terms of the Amended ABL Facility, we may elect to borrow at a variable interest rate plus an applicable margin based on either, (1) LIBOR subject to a floor of zero or (2) a base rate equal to the highest of: (a) the federal funds rate plus 50 basis points, (b) the prime rate of Bank of America, N.A. or (c) LIBOR, subject to a floor of zero, plus 100 basis points. The applicable margin ranges from 175 to 275 basis points for LIBOR borrowings, and 75 to 175 basis points for base rate borrowings, based on the ratio of debt to consolidated EBITDA as defined in the Amended ABL Facility. As of December 31, 2017, the applicable margin for borrowings under our Amended ABL Facility is 200 basis points with respect to LIBOR borrowings and 100 basis points with respect to base rate borrowings. The weighted average interest rate for the Amended ABL Facility is 3.9% at December 31, 2017. In addition, we are required to pay a commitment fee on the unused portion of the Amended ABL Facility ranging from 25 to 37.5 basis points, based on the ratio of debt to consolidated EBITDA, as defined in the Amended ABL Facility. The applicable commitment fee as of December 31, 2017 was 37.5 basis points.

The Amended ABL Facility is a senior secured obligation, secured by first liens on all of our U.S. tangible and intangible assets and a portion of the capital stock of our non-U.S. subsidiaries has also been pledged as collateral. The Amended ABL Facility contains customary operating covenants and certain restrictions including, among other things, the incurrence of additional debt, liens, dividends, asset sales, investments, mergers, acquisitions, affiliate transactions, stock repurchases and other restricted payments. The Amended ABL Facility also requires compliance with a fixed charge coverage ratio if availability under the Amended ABL Facility falls below $22.5 million. In addition, the Amended ABL Facility contains customary events of default, including, without limitation, a failure to make payments under the facility, acceleration of more than $25.0 million of other indebtedness, certain bankruptcy events and certain change of control events.

Other Debt. Our foreign subsidiaries in Italy and India, maintain local credit arrangements consisting primarily of lines of credit which are renewed on an annual basis. We utilize local financing arrangements in our foreign operations in order to provide short-term local liquidity needs. Advances under these short-term credit arrangements are typically based on a percentage of the subsidiary’s accounts receivable or firm contracts with certain customers. We had $1.0 million outstanding under these agreements at December 31, 2017, and no balances outstanding at December 31, 2016. In December 2016, we terminated our revolving line of credit in Brazil and repaid the outstanding balance.

At December 31, 2017, we had letters of credit issued and outstanding which totaled $7.2 million that are collateralized by $7.6 million in restricted cash. Additionally, our foreign operations had $21.6 million outstanding in letters of credit and other guarantees, primarily issued under the line of credit in Italy as well as certain letters of credit that are collateralized by $1.5 million in restricted cash. At December 31, 2017 and December 31, 2016, prepaid expenses and other current assets in the accompanying balance sheet include total restricted cash related to letters of credit of $9.1 million and $7.4 million, respectively.

We incurred net interest expense of $13.3 million, $9.9 million and $9.1 million for the years ended December 31, 2017, 2016 and 2015, respectively. The increase in interest expense in 2017 is primarily related to amortization of the debt discount related to the 2021 Convertible Notes as discussed above. Capitalized interest was $0.1 million, $0.9 million and $1.1 million for the years ended December 31, 2017, 2016 and 2015 respectively. Scheduled repayment of long-term debt as of December 31, 2017 is $100.0 million in 2021 and $81.6 million in 2022.