Note 8

Other Intangible Assets, net

In 2015, the changes related to other gross intangible assets were related to foreign currency translation and an acquisition of an acquisition technology intangible asset. Refer to Note 24 for more information on acquisitions.

Significant components of other intangible assets as of December 31, 2015 and 2014 are summarized as follows:

2015

(in thousands)

Gross

Accumulated
Amortization

Net

Channel relationships

318,600

(99,909

)

218,691

Customer relationships

166,579

(104,736

)

61,843

Trade name

46,422

(24,422

)

22,000

Database

28,000

(14,000

)

14,000

Covenants-not-to-compete

14,940

(7,834

)

7,106

Trade association

10,000

(5,750

)

4,250

Favorable lease

875

(445

)

430

Total

585,416

(257,096

)

328,320


	2014
(in thousands)	Gross		Accumulated Amortization			Net
Channel relationships	$	318,600		(60,079	)	$	258,521
Customer relationships		167,140		(87,201	)		79,939
Trade name		46,480		(15,680	)		30,800
Database		28,000		(8,400	)		19,600
Covenants-not-to-compete		14,940		(5,551	)		9,389
Trade association		10,000		(4,750	)		5,250
Favorable lease		875		(267	)		608

Total	$	586,035		(181,928	)	$	404,107

Amortization related to other intangible assets, which is recorded in selling, general and administrative expenses, was $75.8 million, $77.3 million and $50.0 million for 2015, 2014 and 2013, respectively.

The weighted average useful life for each component of other intangible assets, and in total, as of December 31, 2015 is as follows:


	Weighted Average Amortization Period (Yrs)
Channel relationships		8.0
Customer relationships		8.2
Trade name		4.9
Database		5.0
Covenants-not-to-compete		5.3
Trade association		10.0
Favorable Lease		4.9

Total		7.6

Estimated future amortization expense of other intangible assets as of December 31, 2015 for the next five years is:


(in thousands)
2016	$	75,213
2017		74,823
2018		60,166
2019		47,870
2020		43,711