Investments in Marketable Securities (Tables)
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12 Months Ended |
Dec. 31, 2015 |
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| Investments, Debt and Equity Securities [Abstract] |
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| 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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December 31, 2015 |
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December 31, 2014 |
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Amortized
Cost |
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Gross
Unrealized
Gains |
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Gross
Unrealized
Losses |
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Fair
Value |
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Amortized
Cost |
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Gross
Unrealized
Gains |
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Gross
Unrealized
Losses |
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Fair
Value |
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Short-term investments:
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U.S. Treasuries
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$ |
62,343 |
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$ |
— |
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$ |
(71 |
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$ |
62,272 |
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$ |
— |
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$ |
— |
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$ |
— |
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$ |
— |
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U.S. Government Sponsored Entities
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17,571 |
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— |
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(12 |
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17,559 |
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— |
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— |
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— |
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— |
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Asset-backed securities and other
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29 |
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— |
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— |
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29 |
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— |
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— |
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— |
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— |
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$ |
79,943 |
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$ |
— |
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$ |
(83 |
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$ |
79,860 |
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$ |
— |
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$ |
— |
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$ |
— |
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$ |
— |
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Long-term investments:
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U.S. Treasuries
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$ |
15,283 |
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$ |
— |
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$ |
(112 |
) |
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$ |
15,171 |
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$ |
2,974 |
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$ |
7 |
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$ |
— |
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$ |
2,981 |
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U.S. Government Sponsored Entities
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12,107 |
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— |
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(85 |
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12,022 |
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2,019 |
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— |
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(3 |
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2,016 |
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Corporate debt securities
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17,219 |
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5 |
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(519 |
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16,705 |
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7,442 |
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48 |
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(12 |
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7,478 |
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Asset-backed securities and other
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10,649 |
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— |
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(152 |
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10,497 |
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2,277 |
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4 |
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(4 |
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2,277 |
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$ |
55,258 |
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$ |
5 |
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$ |
(868 |
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$ |
54,395 |
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$ |
14,712 |
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$ |
59 |
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$ |
(19 |
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$ |
14,752 |
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| Amortized Cost and Fair Value of Investments in Available for Sale Securities |
The amortized cost and fair value of the Company’s
investments in available-for-sale securities that have been in a
continuous unrealized loss position consisted of the following (in
thousands):
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December 31, 2015 |
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December 31, 2014 |
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Unrealized
Loss |
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Fair Value |
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Unrealized
Loss |
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Fair
Value |
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Less than 12 months
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$ |
(951 |
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$ |
129,117 |
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$ |
(19 |
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$ |
5,363 |
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12 months or longer
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$ |
— |
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$ |
— |
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$ |
— |
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$ |
— |
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| Gross Realized Gains and Losses from Sale of Available for Sale Securities |
Gross realized gains and gross realized losses from the sales of
the Company’s available-for-sale securities consisted of the
following (in thousands):
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December 31, |
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2015 |
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2014 |
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Gross realized gain (1)
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$ |
135 |
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$ |
— |
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Gross realized loss (1)
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$ |
(3 |
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$ |
— |
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(1) |
Recorded in other income (expense),
net in the consolidated statements of net and comprehensive income.
The cost basis of securities sold were determined on the specific
identification method. |
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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 (in thousands):
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December 31, 2015 |
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December 31, 2014 |
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Amortized
Cost |
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Fair Value |
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Amortized
Cost |
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Fair
Value |
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Due in one year or less
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$ |
79,943 |
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$ |
79,860 |
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$ |
— |
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$ |
— |
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Due after one year through five years
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28,634 |
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28,465 |
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4,679 |
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4,679 |
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Due after five years through ten years
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18,020 |
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17,466 |
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5,652 |
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5,662 |
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Due after ten years
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8,604 |
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8,464 |
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4,381 |
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4,411 |
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$ |
135,201 |
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$ |
134,255 |
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$ |
14,712 |
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$ |
14,752 |
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Weighted average maturity
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3.3 years |
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9.6 years |
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