Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2017

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, 2017 and December 31, 2016 were as follows:

	March 31, 2017								December 31, 2016
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Securities Investments	$	7,123	$	5	$	4,027	$	3,101	$	6,470	$	—	$	3,945	$	2,525
Debt Securities Carried by EGL	34,363		142		—		34,505		38,392		77		15		38,454
Investment Funds	22,503		2,798		78		25,223		23,665		1,854		11		25,508
Total	$	63,989	$	2,945	$	4,105	$	62,829	$	68,527	$	1,931	$	3,971	$	66,487

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, 2017 and December 31, 2016 were as follows:

	March 31, 2017				December 31, 2016
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due within one year	$	103	$	103	$	—	$	—
Due after one year through five years	1,632		1,631		1,748		1,728
Total	$	1,735	$	1,734	$	1,748	$	1,728