Schedule of Amortized Cost and Fair Value of Marketable Securities, Available-for-Sale, by Type of Security |
Amortized cost and fair value of marketable securities,
available-for-sale, by type of security consisted of the following
(in thousands):
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September 30, 2015 |
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|
December 31, 2014 |
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|
Amortized
Cost |
|
|
Gross
Unrealized
Gains |
|
|
Gross
Unrealized
Losses |
|
|
Fair
Value
|
|
|
Amortized
Cost |
|
|
Gross
Unrealized
Gains |
|
|
Gross
Unrealized
Losses |
|
|
Fair
Value
|
|
Short-term investments:
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|
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|
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|
U.S. Treasuries
|
|
$ |
70,497 |
|
|
$ |
31 |
|
|
$ |
— |
|
|
$ |
70,528 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
U.S. Government Sponsored Entities
|
|
|
19,110 |
|
|
|
3 |
|
|
|
(1 |
) |
|
|
19,112 |
|
|
|
— |
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|
|
— |
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|
|
— |
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|
|
— |
|
Asset-backed securities and other
|
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|
124 |
|
|
|
— |
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|
— |
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|
|
124 |
|
|
|
— |
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|
|
— |
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|
|
— |
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|
|
— |
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|
|
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|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ |
89,731 |
|
|
$ |
34 |
|
|
$ |
(1 |
) |
|
$ |
89,764 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
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|
Long-term investments:
|
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|
|
|
|
|
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|
|
|
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|
|
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|
|
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|
|
|
|
|
|
|
|
|
|
|
U.S. Treasuries
|
|
$ |
6,110 |
|
|
$ |
23 |
|
|
$ |
(26 |
) |
|
$ |
6,107 |
|
|
$ |
2,974 |
|
|
$ |
7 |
|
|
$ |
— |
|
|
$ |
2,981 |
|
U.S. Government Sponsored Entities
|
|
|
11,750 |
|
|
|
5 |
|
|
|
(13 |
) |
|
|
11,742 |
|
|
|
2,019 |
|
|
|
— |
|
|
|
(3 |
) |
|
|
2,016 |
|
Corporate debt securities
|
|
|
17,217 |
|
|
|
18 |
|
|
|
(408 |
) |
|
|
16,827 |
|
|
|
7,442 |
|
|
|
48 |
|
|
|
(12 |
) |
|
|
7,478 |
|
Asset-backed securities and other
|
|
|
10,328 |
|
|
|
33 |
|
|
|
(33 |
) |
|
|
10,328 |
|
|
|
2,277 |
|
|
|
4 |
|
|
|
(4 |
) |
|
|
2,277 |
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
$ |
45,405 |
|
|
$ |
79 |
|
|
$ |
(480 |
) |
|
$ |
45,004 |
|
|
$ |
14,712 |
|
|
$ |
59 |
|
|
$ |
(19 |
) |
|
$ |
14,752 |
|
|
|
|
|
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Schedule of Amortized Cost and Fair Value of Marketable Securities, Available-for-Sale, by Contractual Maturity |
Amortized cost and fair value of marketable securities,
available-for-sale, by contractual maturity consisted of the
following (dollars in thousands):
|
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|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
September 30, 2015 |
|
|
December 31, 2014 |
|
|
|
Amortized
Cost |
|
|
Fair Value |
|
|
Amortized
Cost |
|
|
Fair Value |
|
Due in one year or less
|
|
$ |
89,731 |
|
|
$ |
89,764 |
|
|
$ |
— |
|
|
$ |
— |
|
Due after one year through five years
|
|
|
18,948 |
|
|
|
18,955 |
|
|
|
4,679 |
|
|
|
4,679 |
|
Due after five years through ten years
|
|
|
17,835 |
|
|
|
17,474 |
|
|
|
5,652 |
|
|
|
5,662 |
|
Due after ten years
|
|
|
8,622 |
|
|
|
8,575 |
|
|
|
4,381 |
|
|
|
4,411 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ |
135,136 |
|
|
$ |
134,768 |
|
|
$ |
14,712 |
|
|
$ |
14,752 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Weighted average maturity
|
|
|
3.4 years |
|
|
|
|
|
|
|
9.6 years |
|
|