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Long-term Debt
 6 Months Ended
Jun. 30, 2022
Debt Disclosure [Abstract]  
Long-term Debt Long-term Debt
As of June 30, 2022 and December 31, 2021, long-term debt consisted of the following (in thousands):
June 30,
2022		December 31,
2021
Revolving credit facilities(1)
$— $— 
2026 Notes(2)
131,724 131,291 
2023 Notes(3)
19,445 25,802 
Promissory note(4)
17,534 17,534 
Other debt and finance lease obligations3,763 4,123 
Total debt172,466 178,750 
Less: Current portion(37,595)(18,262)
Total long-term debt$134,871 $160,488 
____________________
(1)Unamortized deferred financing costs of $2.3 million and $2.7 million as of June 30, 2022 and December 31, 2021, respectively, are presented in other noncurrent assets.
(2)The outstanding principal amount of the 2026 Notes was $135.0 million as of June 30, 2022 and December 31, 2021.
(3)The outstanding principal amount of the 2023 Notes was $19.5 million and $26.0 million as of June 30, 2022 and December 31, 2021, respectively.
(4)The promissory note was settled on July 1, 2022. See Note 12, "Commitments and Contingencies" for additional discussion.
Revolving Credit Facilities
ABL Facility
On February 10, 2021, the Company entered into a senior secured credit facility with certain lenders, which provides for a $125.0 million asset-based revolving credit facility (the "ABL Facility") under which credit availability is subject to a borrowing base calculation. Concurrent with entering into this facility, the Company's former senior secured revolving credit facility was terminated. On March 16, 2021, the Company entered into an amendment to the ABL Facility that permitted the Company to incur the indebtedness represented by the 2026 Notes discussed below.
The ABL Facility is governed by a credit agreement, as amended, with Wells Fargo Bank, National Association, as administrative agent and the lenders and other financial institutions from time to time party thereto (the "ABL Agreement"). The ABL Agreement matures on February 10, 2025 with a springing maturity 91 days prior to the maturity of any outstanding indebtedness with a principal amount in excess of $17.5 million (excluding the GEO Note discussed below).
The ABL Agreement provides funding based on a borrowing base calculation that includes eligible U.S. customer accounts receivable and inventory and provides for a $50.0 million sub-limit for the issuance of letters of credit. Borrowings under the ABL Agreement are secured by a pledge of substantially all of the Company's domestic assets (other than real property) and the stock of certain foreign subsidiaries.
Borrowings under the ABL Agreement bear interest at a rate equal to the London Interbank Offered Rate ("LIBOR") plus a margin of 2.75% to 3.25% and subject to a LIBOR floor rate of 0.50%, or at a base rate plus a margin of 1.75% to 2.25%, in each case based on average borrowing availability. Quarterly, the Company must also pay a commitment fee of 0.375% to 0.50% per annum, based on unused commitments under the ABL Agreement.
The ABL Agreement places restrictions on the Company's ability to incur additional indebtedness, grant liens on assets, pay dividends or make distributions on equity interests, dispose of assets, make investments, repay other indebtedness (including the 2023 Notes and the 2026 Notes discussed below), engage in mergers, and other matters, in each case, subject to certain exceptions. The ABL Agreement contains customary default provisions, which, if triggered, could result in acceleration of repayment of all amounts then outstanding. The ABL Agreement also requires the Company to satisfy and maintain a fixed charge coverage ratio of not less than 1.0 to 1.0 (i) in the event that availability under the ABL Agreement is less than the
greater of (a) 15% of the borrowing base and (b) $14.1 million; (ii) to complete certain specified transactions; or (iii) if an event of default has occurred and is continuing.
As of June 30, 2022, the Company had $18.6 million of outstanding letters of credit, but no borrowings outstanding under the ABL Agreement. The total amount available to be drawn as of June 30, 2022 was $61.8 million, calculated based on the current borrowing base less outstanding borrowings, if any, and letters of credit. As of June 30, 2022, the Company was in compliance with its debt covenants under the ABL Agreement.
2026 Notes
On March 19, 2021, the Company issued $135.0 million aggregate principal amount of its 4.75% convertible senior notes due 2026 (the "2026 Notes") pursuant to an indenture, dated as of March 19, 2021 (the "2026 Indenture"), between the Company and Wells Fargo Bank, National Association, as trustee. Computershare Trust Company, National Association, assumed the role of trustee as of March 1, 2022. Net proceeds from the 2026 Notes offering, after deducting issuance costs, totaled $130.6 million. The Company used $120.0 million of the cash proceeds to purchase $125.0 million principal amount of the outstanding 2023 Notes at a discount, with the balance added to cash on-hand.
The 2026 Notes bear interest at a rate of 4.75% per year and will mature on April 1, 2026, unless earlier repurchased, redeemed or converted. Interest is payable semi-annually in arrears on April 1 and October 1 of each year. Additional interest and special interest may accrue on the 2026 Notes under certain circumstances as described in the 2026 Indenture. The initial conversion rate is 95.3516 shares of the Company's common stock per $1,000 principal amount of the 2026 Notes (equivalent to an initial conversion price of approximately $10.49 per share of common stock). The conversion rate, and thus the conversion price, may be adjusted under certain circumstances as described in the 2026 Indenture. The Company's intent is to repay the principal amount of the 2026 Notes in cash and settle the conversion feature in shares of the Company's common stock. As of June 30, 2022, none of the conditions allowing holders of the 2026 Notes to convert, or requiring us to repurchase the 2026 Notes, had been met.
2023 Notes
On January 30, 2018, the Company issued $200.0 million aggregate principal amount of its 1.50% convertible senior notes due 2023 (the "2023 Notes") pursuant to an indenture, dated as of January 30, 2018 (the "2023 Indenture"), between the Company and Wells Fargo Bank, National Association, as trustee. Computershare Trust Company, National Association, assumed the role of trustee as of March 1, 2022. The 2023 Notes bear interest at a rate of 1.50% per year and will mature on February 15, 2023, unless earlier repurchased, redeemed or converted. The initial conversion rate is 22.2748 shares of the Company's common stock per $1,000 principal amount of the 2023 Notes (equivalent to an initial conversion price of approximately $44.89 per share of common stock). The conversion rate, and thus the conversion price, may be adjusted under certain circumstances as described in the 2023 Indenture. The Company's intent is to repay the principal amount of the 2023 Notes in cash. As of June 30, 2022, $19.5 million principal amount of the 2023 Notes remained outstanding.
The following table provides a summary of the Company's purchases of outstanding 2023 Notes during the three and six months ended June 30, 2022 and 2021, with non-cash gains reported within other income, net (in thousands):
Principal AmountCarrying Value of LiabilityCash PaidNon-cash Gains Recognized
Three Months Ended June 30,
2022$6,454 $6,429 $6,272 $157 
20216,400 6,337 5,952 385 
Six Months Ended June 30,
2022$6,454 $6,429 $6,272 $157 
2021131,400 129,974 125,952 4,022 
Promissory NoteIn connection with the 2018 acquisition of GEODynamics (the "GEODynamics Acquisition"), the Company issued a $25.0 million promissory note (the "GEO Note") that bore interest at 2.50% per annum (subject to adjustment) and was scheduled to mature on July 12, 2019. Payments due under the GEO Note were subject to set-off, in full or in part, against certain indemnification claims related to matters occurring prior to the GEODynamics Acquisition. The Company asserted indemnification claims against the GEO Seller, and the GEO Seller filed a breach of contract suit against the Company and one of its wholly-owned subsidiaries alleging that payments due under the GEO Note were required to be repaid in accordance with the terms of such note. The Company incurred settlement costs and expenses of $7.5 million related to such indemnification claims, and as of June 28, 2022 had reduced the carrying amount of such note in the consolidated balance sheet to $17.5 million, which was its then-current best estimate of what was owed after set-off for such indemnification matters. On June 28, 2022, the Company agreed to a settlement of all disputes that arose with the GEO Seller, including the full and final settlement of all amounts due pursuant to the GEO Note. See Note 12, "Commitments and Contingencies" f