Intangible Assets, Net and Goodwill (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets and goodwill

A summary of intangible assets, net and goodwill at December 31, 2017 and 2016 is as follows (in thousands):

	2017		2016
Indefinite lived intangibles:
Exchange and clearing organization membership interests and registrations	$	8,551	$	9,041
Amortizable intangibles:
Customer and other relationships, net of accumulated amortization of $230,074 and $198,674	347,767		378,136
Trademarks and tradename, net of accumulated amortization of $95,627 and $78,778	293,851		309,382
Supply contracts, net of accumulated amortization of $57,440 and $47,867	86,160		95,733
Other, net of accumulated amortization of $3,885 and $2,914	4,701		5,672
Total intangible assets, net	741,030		797,964
Goodwill:
National Beef	14,991		14,991
Jefferies	1,703,300		1,696,864
Other operations	3,859		3,859
Total goodwill	1,722,150		1,715,714
Total intangible assets, net and goodwill	$	2,463,180	$	2,513,678

Schedule of amortization expense

The estimated aggregate future amortization expense for the intangible assets for each of the next five years is as follows (in thousands): 

2018	$	58,454
2019	58,454
2020	58,454
2021	58,067
2022	57,984