XML 54 R38.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Summary of the fair value of financial instruments The estimated fair values of our other financial instruments, all of which are categorized in Level 1 of the fair value hierarchy, as of December 31, 2018 and 2017 have been calculated based upon available market information, and were as follows:  
 
December 31, 2018
 
December 31, 2017
 
Carrying
Amount
 
Fair
Value 
 
Carrying
Amount 
 
Fair
Value 
Senior and senior subordinated notes
$
8,102

 
$
7,632

 
$
7,008

 
$
7,340