Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS Fair Value Measurements (Tables)

v3.19.2
FAIR VALUE MEASUREMENTS Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2019
Fair Value Disclosures [Abstract]  
Fair Value of Assets Measured on a Recurring Basis
The following table shows the fair value of our significant financial assets that are required to be measured at fair value on a recurring basis, which are classified on the consolidated balance sheets as cash and cash equivalents.
 
Estimated Fair Value at
 
June 30, 2019
 
December 31, 2018
 
Level 1
 
(in thousands)
Assets:
 
 
 
       Cash equivalents
$
132,936

 
$
86,046


Estimated Fair Values of Debt
The following table presents the estimated fair values of our senior notes and convertible senior notes:


Estimated Fair Value at
 
June 30, 2019
 
December 31, 2018
 
Level 2
 
(in thousands)
4.875% Senior Notes due 2024
$
592,204

 
$
552,368

5.625% Senior Notes due 2026
$
315,129

 
$
302,097

5.375% Senior Notes due 2022
$
254,243

 
$
251,390

2.5% Convertible Senior Notes due 2023
$
652,141

 
$
561,699

2.5% Convertible Senior Notes due 2019
$

 
$
40,710