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Marketable Securities (Tables) | 3 Months Ended
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Mar. 31, 2014
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 March 31, 2014 and December 31, 2013 were as follows:
| March 31, 2014 |  | December 31, 2013
| Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities Investments | $ | 11,621 |  |  | $ | 1,444 |  |  | $ | 15 |  |  | $ | 13,050 |  |  | $ | 11,268 |  |  | $ | 754 |  |  | $ | 623 |  |  | $ | 11,399 |
Debt Securities Carried by EGL | 23,916 |  |  | 101 |  |  | 1 |  |  | 24,016 |  |  | 22,542 |  |  | 87 |  |  | 1 |  |  | 22,628 |
Mutual Funds | 4,580 |  |  | 1,042 |  |  | 87 |  |  | 5,535 |  |  | 7,917 |  |  | 1,600 |  |  | 137 |  |  | 9,380 |
Total | $ | 40,117 |  |  | $ | 2,587 |  |  | $ | 103 |  |  | $ | 42,601 |  |  | $ | 41,727 |  |  | $ | 2,441 |  |  | $ | 761 |  |  | $ | 43,407 |
Investments Classified by Contractual Maturity Date | Scheduled maturities of the Company’s available-for-sale debt securities within the Securities Investments portfolio as of March 31, 2014 and December 31, 2013 were as follows:
| March 31, 2014 |  | December 31, 2013
| Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Due within one year | $ | 305 |  |  | $ | 307 |  |  | $ | 306 |  |  | $ | 307 |
Due after one year through five years | 1,250 |  |  | 1,262 |  |  | 1,250 |  |  | 1,264 |
Due after five years through 10 years | 100 |  |  | 102 |  |  | 100 |  |  | 100 |
Total | $ | 1,655 |  |  | $ | 1,671 |  |  | $ | 1,656 |  |  | $ | 1,671 |

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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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- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
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