Quarterly report pursuant to Section 13 or 15(d)

Fair Value Disclosures (Tables)

v2.4.0.8
Fair Value Disclosures (Tables)
6 Months Ended
Jun. 30, 2014
Fair Value Disclosures [Abstract]  
Fair value of our fixed-rate debt
    Financial Instruments. The fair value of our fixed-rate debt is derived from quoted market prices by independent
dealers and is as follows (in thousands):
 
 
 
June 30, 2014
 
December 31, 2013
 
Hierarchy
Aggregate
Principal
 
Estimated
Fair Value
 
Aggregate
Principal
 
Estimated
Fair Value
4.50% senior notes
Level 2
 
$
175,000

 
$
179,813

 
$
175,000

 
$
174,125

7.15% senior notes
Level 2
 
$
300,000

 
$
334,500

 
$
300,000

 
$
325,500

7.00% senior notes
Level 2
 
$
300,000

 
$
330,390

 
$
300,000

 
$
318,750

1.875% convertible senior notes
Level 2
 
$
126,500

 
$
132,667

 
$
126,500

 
$
142,154