NOTE 15. DEBT

The following is a summary of the Company's total indebtedness at March 31, 2013 and December 31, 2012 (in thousands):



	March 31, 2013			December 31, 2012
1.75% Convertible Senior Subordinated Notes due 2015	$	379,500		$	379,500
Unamortized discount on 1.75% Convertible Senior Subordinated Notes due 2015	(52,380		)	(58,168		)
1.75% Convertible Senior Subordinated Notes due 2015, net	$	327,120		$	321,332
7.00% Senior Notes due 2019	$	500,000		$	500,000
7.00% Senior Notes due 2020	$	400,000		$	400,000
Unamortized initial purchaser’s discount	(3,027		)	(3,101		)
7.00% Senior Notes due 2020, net	$	396,973		$	396,899
7.25% Senior Notes due 2022	$	400,000		$	400,000
3.25% AMS Convertible Notes due 2036	$	795		$	795
4.00% AMS Convertible Notes due 2041	$	111		$	111
Term Loan A Facility Due 2018	$	1,387,500		$	1,387,500
Term Loan B Facility Due 2018	$	60,550		$	160,550
Other long-term debt	$	4,981		$	4,758
Total long-term debt, net	$	3,078,030		$	3,171,945
Less current portion	$	71,968		$	133,998
Total long-term debt, less current portion, net	$	3,006,062		$	3,037,947

On March 26, 2013, we made a prepayment of $100.0 million on our Term Loan B Facility. In accordance with the applicable accounting guidance for debt modifications and extinguishments, approximately $2.2 million of the remaining unamortized financing costs was written off in connection with this prepayment and included in the Condensed Consolidated Statements of Operations as a Net loss on extinguishment of debt.

Also on March 26, 2013, we entered into an amendment and restatement agreement, pursuant to which we amended and restated our existing credit agreement to extend its term by approximately two years and modify its covenants to provide us with greater financial and operating flexibility. The amended and restated agreement (the 2013 Credit Agreement) extends the maturity dates of our $500 million Revolving Credit Facility and our Term Loan A Facility which, at the time of the amendment and restatement, had a remaining principal balance of $1,387.5 million, to March 15, 2018. The 2013 Credit Agreement provides the Company with greater flexibility under certain of its affirmative and negative covenants, including, without limitation, the designation of unrestricted subsidiaries, capital expenditures, asset sales, indebtedness and restricted payments. Under the 2013 Credit Agreement, the Company is required to maintain a leverage ratio (as the definition of such ratio has been modified in the 2013 Credit Agreement) of no greater than 3.75 to 1.00, which provides the Company with greater financial and operating flexibility than the prior credit agreement. The 2013 Credit Agreement continues to require the Company to maintain a minimum interest coverage ratio of 3.50 to 1.00.

The 2013 Credit Agreement keeps in place the Company’s Term Loan B Facility which matures on June 17, 2018 and, at the time of the amendment and restatement, had a remaining principal balance of $60.6 million. The 2013 Credit Agreement also permits additional revolving or term loan commitments up to $500 million (or an unlimited amount in certain circumstances) from one or more of the existing lenders or other lenders with the consent of the Administrative Agent without the need for consent from any of the existing lenders under our credit facility.

The obligations of the Company under our credit facility continue to be guaranteed by certain of the Company’s domestic subsidiaries (the Subsidiary Guarantors) and continue to be secured by substantially all of the assets of the Company and the Subsidiary Guarantors, subject to certain exceptions. The 2013 Credit Agreement contains affirmative and negative covenants that the Company believes are usual and customary for a senior secured credit agreement. The negative covenants include, among other things, limitations on capital expenditures, asset sales, mergers and acquisitions, indebtedness, liens, dividends, investments and transactions with the Company’s affiliates.

As set forth in the 2013 Credit Agreement, borrowings under our credit facility will continue to bear interest at an amount equal to a rate calculated based on the type of borrowing and the Company’s leverage ratio, as defined in the 2013 Credit Agreement. For the Term Loan A Facility and Revolving Credit Facility, the Company may elect to pay interest based on an adjusted London Inter-Bank Offer Rate (LIBOR) plus between 1.75% and 2.50% or an Alternate Base Rate (as defined in the 2013 Credit Agreement) plus between 0.75% and 1.50%. For the Term Loan B Facility, the Company may elect to pay interest based on an adjusted LIBOR plus 3.00% or an Alternate Base Rate plus 2.00%. The Company will pay a commitment fee of between 37.5 to 50 basis points, payable quarterly, on the average daily unused amount of the Revolving Credit Facility.

In connection with the 2013 Credit Agreement, we incurred new debt issuance costs of approximately $8.1 million, $7.6 million of which was deferred and will be amortized over the term of the 2013 Credit Agreement. The remaining $0.5 million and previously deferred debt issuance costs of $8.6 million associated with the 2011 Credit Agreement were charged to expense upon the amendment and restatement of the 2013 Credit Agreement. These expenses were included in the Condensed Consolidated Statements of Operations as a Net loss on extinguishment of debt.

Other than as described above, there have been no material changes to our other indebtedness from what was disclosed in our Annual Report on Form 10-K for the year ended December 31, 2012, filed with the Securities and Exchange Commission on March 1, 2013.