Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2016

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, 2016 and 2015 were as follows:

	December 31, 2016								December 31, 2015
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Securities Investments	$	6,470	$	—	$	3,945	$	2,525	$	6,463	$	10	$	2,523	$	3,950
Debt Securities Carried by EGL	38,392		77		15		38,454		37,404		94		8		37,490
Investment Funds	23,665		1,854		11		25,508		2,291		155		99		2,347
Total	$	68,527	$	1,931	$	3,971	$	66,487	$	46,158	$	259	$	2,630	$	43,787

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, 2016 and 2015 were as follows:

	December 31, 2016				December 31, 2015
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due within one year	$	—	$	—	$	204	$	204
Due after one year through five years	1,748		1,728		1,537		1,545
Total	$	1,748	$	1,728	$	1,741	$	1,749