8. Notes Payable and Revolving Line of Credit

Notes payable and revolving line of credit included the following (in thousands):


	March 31,		December 31,
	2017		2016
6.875% senior notes	$	378,531	$	253,089
Revolving line of credit		65,000		195,000
Insurance premium notes		4,417		5,999
Total notes payable and revolving line of credit	$	447,948	$	454,088

6.875% senior notes

In May 2014, we completed a private offering of $200.0 million in aggregate principal amount of senior unsecured notes due 2022 (which we refer to as the “Initial Senior Notes”) in reliance on Rule 144A and Regulation S under the Securities Act of 1933, as amended (which we refer to as the “Securities Act”). The Initial Senior Notes were issued at a price equal to 99.239% of their principal amount, and we received net proceeds of approximately $193.3 million. In February 2015, we completed an offer to exchange $200.0 million in aggregate principal amount of our 6.875% senior notes due 2022, which are registered under the Securities Act (which we refer to as the “Initial Exchange Notes”), for all of the Initial Senior Notes. The terms of the Initial Exchange Notes are identical in all material respects to the Initial Senior Notes, except that the Initial Exchange Notes are registered under the Securities Act and the transfer restrictions, registration rights, and additional interest provisions applicable to the Initial Senior Notes do not apply to the Initial Exchange Notes.

In April 2015, we completed a private offering of an additional $60 million in aggregate principal amount of our 6.875% senior notes due 2022 (which we refer to as the “April 2015 Senior Notes”) in reliance on Rule 144A and Regulation S under the Securities Act. The April 2015 Senior Notes were issued at a price equal to 98.26% of their principal amount, and we received net proceeds of approximately $58.5 million. The April 2015 Senior Notes are additional notes issued under the indenture pursuant to which the Initial Exchange Notes were issued. In October 2015, we completed an offer to exchange $60.0 million in aggregate principal amount of our 6.875% senior notes due 2022, which are registered under the Securities Act (which we refer to as the “October 2015 Exchange Notes”), for all of the April 2015 Senior Notes. The terms of the October 2015 Exchange Notes are identical in all material respects to the April 2015 Senior Notes, except that the October 2015 Exchange Notes are registered under the Securities Act and the transfer restrictions, registration rights, and additional interest provisions applicable to the April 2015 Senior Notes do not apply to the October 2015 Exchange Notes.

In January 2017, we completed a private offering of an additional $125 million in aggregate principal amount of our 6.875% senior notes due 2022 (which we refer to as the “January 2017 Senior Notes”) in reliance on Rule 144A and Regulation S under the Securities Act. The January 2017 Senior Notes are additional notes issued under the Indenture pursuant to which the Initial Exchange Notes and the October 2015 Exchange Notes (collectively, the “Existing Notes”) were issued. The January 2017 Senior Notes and the Existing Notes will be treated as a single series of notes under the Indenture, and will vote as a single class of notes for all matters submitted to a vote of holders under the Indenture.

The January 2017 Senior Notes and the Existing Notes are unsecured senior obligations which are guaranteed on an unsecured senior basis by certain of our current and future subsidiaries. The January 2017 Senior Notes and the Existing Notes contain certain restrictive covenants on issuing future secured debt and other transactions. The aggregate principal balance of the January 2017 Senior Notes and Existing Notes is due May 2022, with interest only payments due semi-annually in May and November of each year.

Revolving line of credit

On October 21, 2014, we entered into a credit agreement with Texas Capital Bank, National Association, as Administrative Agent and L/C Issuer, and the lenders from time to time party thereto (which, as modified as described below, we refer to as the “Credit Agreement”). The Credit Agreement provided us with a revolving line of credit of up to $120 million (which, as modified as described below, we refer to as the “Revolving Credit Facility”).

Under the terms of the Credit Agreement, we were entitled to request an increase in the size of the Revolving Credit Facility by an amount not exceeding $80 million. If the existing lenders elect not to provide the full amount of a requested increase, we may invite one or more other lender(s) to become a party to the Credit Agreement, subject to the approval of the Administrative Agent and L/C Issuer. The Credit Agreement includes a letter of credit sublimit of $20 million. The obligations under the Revolving Credit Facility were guaranteed by certain of our subsidiaries.

On July 31, 2015, we entered into a First Modification Agreement with Texas Capital Bank, National Association, as Administrative Agent, the lenders party thereto, and our subsidiary guarantors party thereto, which modified the Credit Agreement. The First Modification Agreement, among other things, (i) increased the Revolving Credit Facility from $120 million to $200 million, (ii) extended the maturity date of the Revolving Credit Facility from October 21, 2017 to October 21, 2018, (iii) admitted Bank of America, N.A. as a new lender under the Revolving Credit Facility, and ( iv) increased the amount of the increase in the size of the Revolving Credit Facility that we had the option to request, from time to time, from an amount not exceeding $80 million to an amount not exceeding $100 million, subject to the terms and conditions of the First Modification Agreement and the Credit Agreement.

On December 22, 2015, we entered into a Second Modification Agreement with Texas Capital Bank, National Association, as Administrative Agent, the lenders party thereto, and our subsidiary guarantors party thereto, which further modified the Credit Agreement. The Second Modification Agreement, among other things, (i) increased the Revolving Credit Facility from $200 million to $300 million, and (ii) admitted Compass Bank, an Alabama Banking Corporation, and U.S. Bank National Association as new lenders under the Revolving Credit Facility.

On August 19, 2016, we entered into a Third Modification Agreement with Texas Capital Bank, National Association, as Administrative Agent, the lenders party thereto, and our subsidiary guarantors party thereto, which further modified the Credit Agreement. The Third Modification Agreement, among other things, (i) increased the Revolving Credit Facility from $300 million to $380 million through our exercise of $80 million of the accordion feature of the Credit Agreement, (ii) admitted Citibank, N.A. and Flagstar Bank, FSB as new lenders under the Revolving Credit Facility, (iii) increased certain lenders’ respective commitments to the Revolving Credit Facility, and (iv) extended the term of the Revolving Credit Facility by one year to mature on October 21, 2019.

On February 24, 2017, we entered into a Commitment Increase Agreement with Texas Capital Bank, National Association, as Administrative Agent, Flagstar Bank, FSB (“Flagstar”), and our subsidiary guarantors party thereto. The Commitment Increase Agreement supplements the Credit Agreement, and (i) increased the Revolving Credit Facility from $380 million to $400 million through our exercise of the remaining $20 million of the accordion feature of the Credit Agreement, and (ii) increased Flagstar’s commitment to the Credit Facility.

Unless terminated earlier, the principal amount under the Revolving Credit Facility, together with all accrued unpaid interest and other amounts owing thereunder, if any, will be payable in full on October 21, 2019, the maturity date of the Revolving Credit Facility. Borrowings under the Revolving Credit Facility bear interest at a floating rate equal to the London Interbank Offered Rate plus an applicable margin between 2.75% and 3.25% per annum, or, in the Administrative Agent’s discretion, a base rate plus an applicable margin between 1.75% and 2.25% per annum. The “applicable margins” described above are determined by a schedule based on our leverage ratio, as defined in the Credit Agreement. The Credit Agreement also provides for fronting fees and letter of credit fees payable to the L/C Issuer and commitment fees payable to the Administrative Agent equal to 0.20% of the unused portion of the Revolving Credit Facility.

The Credit Agreement contains customary affirmative and negative covenants (including limitations on our ability to grant liens, incur additional debt, pay dividends, redeem our common stock, make certain investments, and engage in certain merger, consolidation or asset sale transactions), as well as customary events of default. The Credit Agreement also requires us to maintain (i) a leverage ratio of not more than 1.50 to 1.0 as of the last day of any fiscal quarter, based upon our and our subsidiaries’ (on a consolidated basis) ratio of debt to tangible net worth, (ii) an interest coverage ratio of not less than 1.50 to 1.0 for any four fiscal quarter period, based upon our and our subsidiaries’ (on a consolidated basis) ratio of EBITDA to cash interest expense, (iii) a consolidated tangible net worth of not less than the sum of $250 million, plus 50% of the net proceeds of any issuances of equity interests by us and the guarantors of the Revolving Credit Facility, plus 50% of the amount of our and our subsidiaries’ consolidated net income, (iv) liquidity of not less than $25 million, and (v) a risk asset ratio of not more than 1.25 to 1.0, based upon the ratio of the book value of all risk assets owned by us and our subsidiaries to our tangible net worth. As of March 31, 2017, we were in compliance with all covenants under the Credit Agreement.

As of March 31, 2017, we had $65.0 million outstanding under the Credit Agreement.

Other financing obligations

As of March 31, 2017, we had one insurance premium note with an outstanding balance of $4.4 million, which matures in December 2017 and bears interest at a rate of 3.88%. During the three months ended March 31, 2017, we repaid one insurance premium note with an outstanding balance of $0.1 million. As of December 31, 2016, we had an aggregate of $6.0 million of outstanding insurance premium notes.