June 30,

December 31,

2012

2011

$925 Million Credit Facility, interest at LIBOR plus 2.25% or bank’s base rate plus 1.25%, maturing August 1, 2015

$

555,000

$

600,000

Convertible Senior Notes, interest at 3.75%, maturing October 1, 2014, net of unamortized discount of $34,000 and $40,754

326,000

319,246

Senior Notes, interest at 6.75%, maturing November 15, 2014

152,180

152,180

Capital lease obligations

2,026

2,399

Total debt

1,035,206

1,073,825

Less amounts due within one year

(750

)

(755

)

Total long-term debt

$

1,034,456

$

1,073,070