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DEBT (Tables)
9 Months Ended
Sep. 30, 2013
DEBT  
Schedule of components of the Company's Convertible Senior Notes

 

 

 

 

September 30,
2013

 

December 31,
2012

 

 

 

(in thousands)

 

2020 Convertible Senior Notes

 

 

 

 

 

Principal amount outstanding

 

$

450,000

 

$

 

Unamortized discount

 

(114,323

)

 

Net carrying amount

 

335,677

 

 

2018 Convertible Senior Notes

 

 

 

 

 

Principal amount outstanding

 

350,000

 

 

Unamortized discount

 

(68,784

)

 

Net carrying amount

 

281,216

 

 

2017 Convertible Senior Notes

 

 

 

 

 

Principal amount outstanding

 

228,822

 

450,000

 

Unamortized discount

 

(36,176

)

(82,189

)

Net carrying amount

 

192,646

 

367,811

 

Total Convertible Senior Notes

 

 

 

 

 

Principal amount outstanding

 

1,028,822

 

450,000

 

Unamortized discount

 

(219,283

)

(82,189

)

Net carrying amount

 

$

809,539

 

$

367,811