Annual report pursuant to Section 13 and 15(d)

Intangible Assets

v3.8.0.1
Intangible Assets
12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
Intangible Assets

At December 31, 2017 and 2016, intangible assets subject to amortization consisted of the following:
 
 
Weighted-Average
 
December 31, 2017
 
December 31, 2016
  
 
Estimated Useful Life (years)
 
Gross Carrying Amount
 
Accumulated Amortization
 
Gross Carrying Amount
 
Accumulated Amortization
Technology
 
7.9
 
$
25,563

 
$
19,020

 
$
25,563

 
$
15,754

Relationships with financial advisors
 
14.7
 
117,995

 
49,925

 
117,995

 
40,505

Vendor relationships
 
7
 
3,613

 
3,613

 
3,613

 
3,613

Covenants not-to-compete
 
3.9
 
6,421

 
5,732

 
6,421

 
4,638

Customer accounts
 
8.3
 
2,029

 
2,029

 
2,029

 
1,971

Trade names
 
7.7
 
16,910

 
12,245

 
16,910

 
10,017

Renewal revenue
 
7.9
 
41,381

 
17,737

 
41,381

 
12,481

Relationships with investment banking clients
 
4
 
2,586

 
2,586

 
2,586

 
2,586

Leases
 
6
 
861

 
861

 
861

 
861

Referral agreement
 
6.6
 
124

 
124

 
124

 
119

Other
 
6
 
67

 
67

 
67

 
67

Total
 
 
 
$
217,550

 
$
113,939

 
$
217,550

 
$
92,612



Aggregate amortization expense amounted to $21,327, $20,703 and $20,650 for the years ended December 31, 2017, 2016 and 2015, respectively. The weighted-average amortization period for total amortizable intangibles at December 31, 2017 is 8.82 years. Estimated amortization expense for each of the five succeeding years and thereafter is as follows:

 
 
2018
$
20,462

2019
16,987

2020
15,400

2021
10,687

2022
7,798

Thereafter
32,277

  
$
103,611