| Schedule of Cash Equivalents and Marketable Securities |
Cash equivalents and marketable securities consisted of the following:
|
|
|
December 31, 2018
|
|
|
|
|
Amortized
Cost Basis
|
|
|
Unrealized
Gains
|
|
|
Unrealized
Losses
|
|
|
Fair
Value
|
|
|
|
|
(in thousands)
|
|
|
Money market funds
|
|
$
|
116,202
|
|
|
$
|
-
|
|
|
$
|
-
|
|
|
$
|
116,202
|
|
|
Commercial paper
|
|
|
26,625
|
|
|
|
-
|
|
|
|
-
|
|
|
|
26,625
|
|
|
Corporate debt securities
|
|
|
11,795
|
|
|
|
-
|
|
|
|
(21
|
)
|
|
|
11,774
|
|
|
Asset-based securities
|
|
|
16,920
|
|
|
|
-
|
|
|
|
(21
|
)
|
|
|
16,899
|
|
|
U.S. government agencies
|
|
|
23,901
|
|
|
|
-
|
|
|
|
(5
|
)
|
|
|
23,896
|
|
|
Total
|
|
|
195,443
|
|
|
|
-
|
|
|
|
(47
|
)
|
|
|
195,396
|
|
|
Less amounts classified as cash equivalents
|
|
|
(116,202
|
)
|
|
|
-
|
|
|
|
-
|
|
|
|
(116,202
|
)
|
|
Total marketable securities
|
|
$
|
79,241
|
|
|
$
|
-
|
|
|
$
|
(47
|
)
|
|
$
|
79,194
|
|
|
|
|
December 31, 2017
|
|
|
|
|
Amortized
Cost Basis
|
|
|
Unrealized
Gains
|
|
|
Unrealized
Losses
|
|
|
Fair
Value
|
|
|
|
|
(in thousands)
|
|
|
Money market funds
|
|
$
|
6,578
|
|
|
$
|
-
|
|
|
$
|
-
|
|
|
$
|
6,578
|
|
|
Commercial paper
|
|
|
7,689
|
|
|
|
-
|
|
|
|
-
|
|
|
|
7,689
|
|
|
Corporate debt securities
|
|
|
800
|
|
|
|
-
|
|
|
|
-
|
|
|
|
800
|
|
|
U.S. government agencies
|
|
|
3,893
|
|
|
|
-
|
|
|
|
-
|
|
|
|
3,893
|
|
|
Total
|
|
|
18,960
|
|
|
|
-
|
|
|
|
-
|
|
|
|
18,960
|
|
|
Less amounts classified as cash equivalents
|
|
|
(18,960
|
)
|
|
|
-
|
|
|
|
-
|
|
|
|
(18,960
|
)
|
|
Total marketable securities
|
|
$
|
-
|
|
|
$
|
-
|
|
|
$
|
-
|
|
|
$
|
-
|
|
|