XML 24 R14.htm IDEA: XBRL DOCUMENT v3.19.1
Fair Value of Financial Instruments
3 Months Ended
Mar. 31, 2019
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments
Fair Value of Financial Instruments
The Company’s financial instruments, other than cash, consist primarily of cash equivalents, accounts receivable, accounts payable and accrued expenses. The carrying value of these financial instruments approximates their fair value. All highly liquid investments with a maturity of three months or less at date of purchase are considered to be cash equivalents.
Cash and cash equivalents consist of the following:
 
March 31, 2019
 
December 31, 2018
 
Cost
 
Fair Value
 
Cost
 
Fair Value
Cash and Cash Equivalents:
 
 
 
 
 
 
 
Cash and overnight deposits
$
460,584

 
$
460,584

 
$
427,307

 
$
427,307

Corporate commercial paper
692,669

 
693,248

 
467,300

 
467,760

Time deposits
36,176

 
36,176

 
29,128

 
29,128

Total cash and cash equivalents
$
1,189,429

 
$
1,190,008

 
$
923,735

 
$
924,195


The fair value of corporate commercial paper and time deposits is based on the use of market interest rates for identical or similar assets (Level 2 fair value measurement).