. Debt

Our obligations under debt arrangements consisted of the following:



	June 30, 2012		December 31, 2011
Senior secured credit facility	$	445,000	$	409,300
7.875% senior unsecured notes (including unamortized premium of $953 and $0 in 2012 and 2011, respectively)	350,953		250,000
Total long-term debt	$	795,953	$	659,300

As of June 30, 2012, we were in compliance with the financial covenants contained in our credit agreement and senior unsecured notes indenture.

Senior Secured Credit Facility

At June 30, 2012, we had $445 million borrowed under our $775 million senior secured credit facility, with $47.4 million of the borrowed amount designated as a loan under the inventory sublimit. The credit facility can be increased up to $1 billion, subject to lender approval. The credit agreement allows up to $100 million of the capacity to be used for letters of credit, of which $13.9 million was outstanding at June 30, 2012. Due to the revolving nature of loans under our credit facility, additional borrowings and periodic repayments and re-borrowings may be made until the maturity date of June 30, 2015. The total amount available for borrowings under our credit facility at June 30, 2012 was $316.1 million.

In July 2012, we amended and restated our senior secured credit facility. See Item 2. "Management's Discussion and Analysis of Financial Condition and Results of Operations - Liquidity and Capital Resources" for further details.

Senior Unsecured Notes Issuance

On February 1, 2012, we issued an additional $100 million of aggregate principal amount of senior unsecured notes under our existing 7.875% senior unsecured notes due 2018 indenture. The notes were issued at 101% of face value at an effective interest rate of 7.682%. The notes have the same terms and conditions as the notes previously issued under the indenture. The issuance increased the total aggregate principal amount under the indenture to $350 million. The net proceeds were used to repay borrowings under our credit facility.