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Marketable Securities (Tables) | 12 Months Ended
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Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract] |
Unrealized Gain (Loss) on Investments | The amortized cost and estimated fair value of the Company’s Marketable Securities as of December 31, 2015 and 2014 were as follows:
| December 31, 2015 |  | December 31, 2014
| Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities Investments | $ | 6,463 |  |  | $ | 10 |  |  | $ | 2,523 |  |  | $ | 3,950 |  |  | $ | 6,354 |  |  | $ | 11 |  |  | $ | 2,173 |  |  | $ | 4,192 |
Debt Securities Carried by EGL | 37,404 |  |  | 94 |  |  | 8 |  |  | 37,490 |  |  | 28,014 |  |  | 80 |  |  | 3 |  |  | 28,091 |
Mutual Funds | 2,291 |  |  | 155 |  |  | 99 |  |  | 2,347 |  |  | 4,765 |  |  | 1,053 |  |  | 116 |  |  | 5,702 |
Total | $ | 46,158 |  |  | $ | 259 |  |  | $ | 2,630 |  |  | $ | 43,787 |  |  | $ | 39,133 |  |  | $ | 1,144 |  |  | $ | 2,292 |  |  | $ | 37,985 |
Investments Classified by Contractual Maturity Date | Scheduled maturities of the Company’s available-for-sale debt securities within the Securities Investments portfolio as of December 31, 2015 and 2014 were as follows:
| December 31, 2015 |  | December 31, 2014
| Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Due within one year | $ | 204 |  |  | $ | 204 |  |  | $ | 303 |  |  | $ | 305 |
Due after one year through five years | 1,537 |  |  | 1,545 |  |  | 1,229 |  |  | 1,236 |
Due after five years through 10 years | — |  |  | — |  |  | 100 |  |  | 101 |
Total | $ | 1,741 |  |  | $ | 1,749 |  |  | $ | 1,632 |  |  | $ | 1,642 |

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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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