Borrowings | Borrowings: The Company's borrowings consisted of the following as of the dates indicated (amounts in thousands): March 31, 2018 December 31, 2017 Revolving credit $ 820,022 $ 849,815 Term loans 771,463 764,830 Convertible senior notes 632,500 632,500 2,223,985 2,247,145 Less: Debt discount and issuance costs (73,112 ) (76,963 ) Total $ 2,150,873 $ 2,170,182 The following principal payments are due on the Company's borrowings as of March 31, 2018 for the 12 month periods ending March 31, (amounts in thousands): 2019 $ 10,000 2020 10,000 2021 1,087,986 2022 10,000 2023 760,999 Thereafter 345,000 Total $ 2,223,985 The Company believes it was in compliance with the covenants of its financing arrangements as of March 31, 2018 . North American Revolving Credit and Term Loan On May 5, 2017, the Company amended and restated its existing credit agreement (as amended, and modified from time to time, the “North American Credit Agreement”) with Bank of America, N.A., as administrative agent, Bank of America, National Association, acting through its Canada branch, as the Canadian administrative agent, and a syndicate of lenders named therein. The total credit facility under the North American Credit Agreement includes an aggregate principal amount of $1.2 billion (subject to compliance with a borrowing base and applicable debt covenants), which consists of (i) a fully-funded $442.5 million term loan, (ii) a $705.0 million domestic revolving credit facility, and (iii) a $50.0 million Canadian revolving credit facility. The facility includes an accordion feature for up to $45.0 million in additional commitments (at the option of the lenders) and also provides for up to $25.0 million of letters of credit and a $25.0 million swingline loan sublimit that would reduce amounts available for borrowing. The term and revolving loans accrue interest, at the option of the Company, at either the base rate or the Eurodollar rate (as defined in the North American Credit Agreement) for the applicable term plus 2.50% per annum in the case of the Eurodollar rate loans and 1.50% in the case of the base rate loans. The base rate is the highest of (a) the Federal Funds Rate (as defined in the North American Credit Agreement) plus 0.50% , (b) Bank of America's prime rate, or (c) the one month Eurodollar rate plus 1.00% . Canadian Prime Rate Loans will bear interest at a rate per annum equal to the Canadian Prime Rate plus 1.50% . The revolving credit facilities also bear an unused line fee of 0.375% per annum, payable quarterly in arrears. The loans under the North American Credit Agreement mature May 5, 2022. As of March 31, 2018 , the unused portion of the North American Credit Agreement was $396.5 million . Considering borrowing base restrictions, as of March 31, 2018 , the amount available to be drawn was $365.4 million . The North American Credit Agreement is secured by a first priority lien on substantially all of the Company's assets. The North American Credit Agreement contains restrictive covenants and events of default, which are defined in the North American Credit Agreement, including the following: • borrowings under each of the domestic revolving loan facility and the Canadian revolving loan facility are subject to separate borrowing base calculations and may not exceed 35% of the ERC of all domestic or Canadian, as applicable, core eligible asset pools, plus 55% of ERC of domestic or Canadian, as applicable, insolvency eligible asset pools, plus 75% of domestic or Canadian, as applicable, eligible accounts receivable; • the consolidated total leverage ratio cannot exceed 2.75 to 1.0 as of the end of any fiscal quarter; • the consolidated senior secured leverage ratio cannot exceed 2.25 to 1.0 as of the end of any fiscal quarter; • subject to no default or event of default, cash dividends and distributions during any fiscal year cannot exceed $20.0 million ; • subject to no default or event of default, stock repurchases during any fiscal year cannot exceed $100.0 million plus 50% of the prior year's net income; • permitted acquisitions during any fiscal year cannot exceed $250.0 million (with a $50.0 million per year sublimit for permitted acquisitions by non-loan parties); • indebtedness in the form of senior, unsecured convertible notes or other unsecured financings cannot exceed $750.0 million in the aggregate (without respect to the 2020 Notes (as defined below)); • the Company must maintain positive consolidated income from operations during any fiscal quarter; and • restrictions on changes in control. European Revolving Credit Facility and Term Loan On October 23, 2014, European subsidiaries of the Company ("PRA Europe") entered into a credit agreement with DNB Bank ASA for a Multicurrency Revolving Credit Facility (such agreement as later amended or modified, the "European Credit Agreement"). In the first quarter of 2018, the Company entered into the Fourth Amendment and Restatement Agreement (the "Fourth Amendment") to its European Credit Agreement which, among other things, expanded the scope of loan portfolios that constitute Approved Loan Portfolios (as defined in the Fourth Amendment). Additionally, other changes to the European Credit Agreement resulting from the Fourth Amendment include: reduced all applicable margins for the interest payable under the multicurrency revolving credit facility by 15 basis points; reduced all applicable margins for the interest payable under the term loan facility by 50 basis points, subject to the lenders’ right to increase the applicable margin by up to 50 basis points if one or more of the lenders elects to syndicate and/or transfer its commitment under the term loan in accordance with the terms of the Fourth Amendment; reduced the maximum permitted amount of interest bearing deposits in AK Nordic AB from SEK 1.5 billion to SEK 1.2 billion; and revised the definitions of ERC and LTV Ratio. Under the terms of the European Credit Agreement, the credit facility includes an aggregate amount of approximately $1.2 billion (subject to the borrowing base), of which 267.0 million EUR (approximately $329.0 million ) is a term loan, accrues interest at the Interbank Offered Rate ("IBOR") plus 2.65% - 3.75% under the revolving facility and 3.75% - 4.00% under the term loan facility (as determined by the loan-to-value ratio ("LTV Ratio") as defined in the European Credit Agreement), bears an unused line fee, currently 1.21% per annum, of 35% of the margin, is payable monthly in arrears, and matures February 19, 2021. The European Credit Agreement also includes an overdraft facility in the aggregate amount of $40.0 million (subject to the borrowing base), which accrues interest (per currency) at the daily rates as published by the facility agent, bears a facility line fee of 0.125% per quarter, payable quarterly in arrears, and also matures February 19, 2021. As of March 31, 2018 , the unused portion of the European Credit Agreement (including the overdraft facility) was $478.5 million . Considering borrowing base restrictions and other covenants, as of March 31, 2018 , the amount available to be drawn under the European Credit Agreement (including the overdraft facility) was $184.6 million . The European Credit Agreement is secured by the shares of most of the Company's European subsidiaries and all intercompany loan receivables in Europe. The European Credit Agreement also contains restrictive covenants and events of default, which are defined in the European Credit Agreement, including the following: • the LTV Ratio cannot exceed 75% ; • the gross interest-bearing debt ratio in Europe cannot exceed 3.25 to 1.0 as of the end of any fiscal quarter; • interest bearing deposits in AK Nordic AB cannot exceed SEK 1.2 billion ; and • PRA Europe's cash collections must exceed 95% of PRA Europe's IFRS ERC for the same set of portfolios, measured on a quarterly basis. Convertible Senior Notes due 2020 On August 13, 2013, the Company completed the private offering of $287.5 million in aggregate principal amount of its 3.00% Convertible Senior Notes due 2020 (the "2020 Notes"). The 2020 Notes were issued pursuant to an Indenture, dated August 13, 2013 (the "2013 Indenture"), between the Company and Regions Bank, as successor trustee. The 2013 Indenture contains customary terms and covenants, including certain events of default after which the 2020 Notes may be due and payable immediately. The 2020 Notes are senior unsecured obligations of the Company. Interest on the 2020 Notes is payable semi-annually, in arrears, on February 1 and August 1 of each year, beginning on February 1, 2014. Prior to February 1, 2020, the 2020 Notes will be convertible only upon the occurrence of specified events. On or after February 1, 2020, the 2020 Notes will be convertible at any time. The Company does not have the right to redeem the 2020 Notes prior to maturity. As of March 31, 2018 , the Company does not believe that any of the conditions allowing holders of the 2020 Notes to convert their notes have occurred. The conversion rate for the 2020 Notes is initially 15.2172 shares per $1,000 principal amount of 2020 Notes, which is equivalent to an initial conversion price of approximately $65.72 per share of the Company's common stock, and is subject to adjustment in certain circumstances pursuant to the 2013 Indenture. Upon conversion, holders of the 2020 Notes will receive cash, shares of the Company's common stock or a combination of cash and shares of the Company's common stock, at the Company's election. The Company's current intent is to settle conversions through combination settlement (i.e ., the 2020 Notes would be converted into cash up to the aggregate principal amount, and shares of the Company's common stock or a combination of cash and shares of the Company's common stock, at the Company's election, for the remainder). As a result and in accordance with authoritative guidance related to derivatives and hedging and earnings per share, only the conversion spread is included in the diluted earnings per share calculation, if dilutive. Under such method, the settlement of the conversion spread has a dilutive effect when the average share price of the Company's common stock during any quarter exceeds $65.72 . The Company determined that the fair value of the 2020 Notes at the date of issuance was approximately $255.3 million , and designated the residual value of approximately $32.2 million as the equity component. Additionally, the Company allocated approximately $7.3 million of the $8.2 million 2020 Notes issuance cost as debt issuance cost and the remaining $0.9 million as equity issuance cost. Convertible Senior Notes due 2023 On May 26, 2017, the Company completed the private offering of $345.0 million in aggregate principal amount of its 3.50% Convertible Senior Notes due 2023 (the "2023 Notes" and, together with the 2020 Notes, the "Notes"). The 2023 Notes were issued pursuant to an Indenture, dated May 26, 2017 (the "2017 Indenture"), between the Company and Regions Bank, as trustee. The 2017 Indenture contains customary terms and covenants, including certain events of default after which the 2023 Notes may be due and payable immediately. The 2023 Notes are senior unsecured obligations of the Company. Interest on the 2023 Notes is payable semi-annually, in arrears, on June 1 and December 1 of each year, beginning on December 1, 2017. Prior to March 1, 2023, the 2023 Notes will be convertible only upon the occurrence of specified events. On or after March 1, 2023, the 2023 Notes will be convertible at any time. The Company has the right, at its election, to redeem all or any part of the outstanding 2023 Notes at any time on or after June 1, 2021 for cash, but only if the last reported sale price (as defined in the 2017 Indenture) exceeds 130% of the conversion price on each of at least 20 trading days during the 30 consecutive trading days ending on and including the trading day immediately before the date the Company sends the related redemption notice. As of March 31, 2018 , the Company does not believe that any of the conditions allowing holders of the 2023 Notes to convert their notes have occurred. The conversion rate for the 2023 Notes is initially 21.6275 shares per $1,000 principal amount of 2023 Notes, which is equivalent to an initial conversion price of approximately $46.24 per share of the Company's common stock, and is subject to adjustment in certain circumstances pursuant to the 2017 Indenture. Upon conversion, holders of the 2023 Notes will receive cash, shares of the Company's common stock or a combination of cash and shares of the Company's common stock, at the Company's election. The Company's current intent is to settle conversions through combination settlement (i.e ., the 2023 Notes would be converted into cash up to the aggregate principal amount, and shares of the Company's common stock or a combination of cash and shares of the Company's common stock, at the Company's election, for the remainder). As a result and in accordance with authoritative guidance related to derivatives and hedging and earnings per share, only the conversion spread is included in the diluted earnings per share calculation, if dilutive. Under such method, the settlement of the conversion spread has a dilutive effect when the average share price of the Company's common stock during any quarter exceeds $46.24 . The Company determined that the fair value of the 2023 Notes at the date of issuance was approximately $298.8 million , and designated the residual value of approximately $46.2 million as the equity component. Additionally, the Company allocated approximately $8.3 million of the $9.6 million 2023 Notes issuance cost as debt issuance cost and the remaining $1.3 million as equity issuance cost. The balances of the liability and equity components of the Notes outstanding were as follows as of the dates indicated (amounts in thousands): March 31, 2018 December 31, 2017 Liability component - principal amount $ 632,500 $ 632,500 Unamortized debt discount (52,660 ) (55,537 ) Liability component - net carrying amount $ 579,840 $ 576,963 Equity component $ 76,216 $ 76,216 The debt discount is being amortized into interest expense over the remaining life of the 2020 Notes and the 2023 Notes using the effective interest rate, which is 4.92% and 6.20% , respectively. Interest expense related to the Notes was as follows for the periods indicated (amounts in thousands): Three Months Ended March 31, 2018 2017 Interest expense - stated coupon rate $ 5,175 $ 2,156 Interest expense - amortization of debt discount 2,877 1,155 Total interest expense - convertible senior notes $ 8,052 $ 3,311 |