XML 45 R18.htm IDEA: XBRL DOCUMENT v3.19.3
Cash and Investments in Marketable Securities (Tables)
9 Months Ended
Sep. 30, 2019
Fair Value Disclosures [Abstract]  
Cash and Investments in Marketable Securities, Including Cash Equivalents
Cash and investments in marketable securities, including cash equivalents, are as follows (in thousands):
 
Estimated Fair Value at
 
September 30, 2019
 
December 31, 2018
Cash and cash equivalents
$
81,224

 
$
194,905

Short-term investments
1,414,448

 
1,140,445

Long-term investments
231,082

 
582,889

Total cash and investments in marketable securities
$
1,726,754

 
$
1,918,239


Portfolio of Cash and Investments in Marketable Securities
Our portfolio of cash and investments in marketable securities includes (in thousands):
 
 
 
Estimated Fair Value at
 
Fair Value
Hierarchy
Level
 
September 30, 2019
 
December 31, 2018
Corporate notes and bonds
2
 
$
1,163,575

 
$
1,288,986

Corporate commercial paper
2
 
482,468

 
498,048

Obligations of U.S. government agencies
2
 

 
12,977

Available-for-sale investments
 
 
1,646,043

 
1,800,011

Money market funds
1
 
45,674

 
105,656

Certificate of deposit
N/A
 
6,871

 
6,760

Cash
N/A
 
28,166

 
5,812

Total cash and investments in marketable securities
 
 
$
1,726,754

 
$
1,918,239