Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS Fair Value Measurements (Tables)

v3.10.0.1
FAIR VALUE MEASUREMENTS Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2018
Fair Value Disclosures [Abstract]  
Fair Value of Assets Measured on a Recurring Basis
The following table shows the fair value of the Company’s significant financial assets that are required to be measured at fair value on a recurring basis, which are classified on the balance sheets as cash and cash equivalents:
 
Fair Value Measurements at
 
June 30, 2018
 
December 31, 2017
 
Level 1
 
(in thousands)
Assets:
 
 
 
       Cash equivalents
$
204,401

 
$
58,063

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


Estimated Fair Value at
 
June 30, 2018
 
December 31, 2017
 
Level 2
 
(in thousands)
4.875% Senior Notes due 2024
$
557,049

 
$
592,325

5.625% Senior Notes due 2026
$
299,469

 
$

5.375% Senior Notes due 2022
$
255,415

 
$
259,233

2.5% Convertible Senior Notes due 2023
$
576,813

 
$

2.5% Convertible Senior Notes due 2019
$
40,860

 
$
310,635