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

A summary of the Company’s goodwill assets by business segment is presented in the following table:
(Dollars in thousands)
 
January 1,
2017
 
Goodwill
Acquired
 
Impairment
Loss
 
Goodwill Adjustments
 
December 31,
2017
Community banking
 
$
427,781

 
$
999

 
$

 
$
740

 
$
429,520

Specialty finance
 
38,692

 

 

 
1,558

 
40,250

Wealth management
 
32,114

 

 

 

 
32,114

Total
 
$
498,587

 
$
999

 
$

 
$
2,298

 
$
501,884



The community banking segment's goodwill increased $1.7 million in 2017 primarily as a result of the acquisition of AHM and subsequent purchase adjustments related to the acquisition of FCFC. The specialty finance segment's goodwill increased $1.6 million in 2017 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of December 31, 2017 is as follows:
 
 
December 31,
(Dollars in thousands)
 
2017
 
2016
Community banking segment:
 
 
 
 
Core deposit intangibles:
 
 
 
 
Gross carrying amount
 
$
37,272

 
$
37,272

Accumulated amortization
 
(25,427
)
 
(21,614
)
Net carrying amount
 
$
11,845

 
$
15,658

Specialty finance segment:
 
 
 
 
Customer list intangibles:
 
 
 
 
Gross carrying amount
 
$
1,972

 
$
1,800

Accumulated amortization
 
(1,298
)
 
(1,159
)
Net carrying amount
 
$
674

 
$
641

Wealth management segment:
 
 
 
 
Customer list and other intangibles:
 
 
 
 
Gross carrying amount
 
$
7,940

 
$
7,940

Accumulated amortization
 
(2,838
)
 
(2,388
)
Net carrying amount
 
$
5,102

 
$
5,552

Total other intangible assets, net
 
$
17,621

 
$
21,851


Estimated amortization for the year-ended:
  
2018
$
3,796

2019
3,223

2020
2,597

2021
2,056

2022
1,556



The core deposit intangibles recognized in connection with prior bank acquisitions are amortized over a ten-year period on an accelerated basis. The customer list intangibles recognized in connection with the purchase of life insurance premium finance assets in 2009 are being amortized over an 18-year period on an accelerated basis while the customer list intangibles recognized
in connection with prior acquisitions within the wealth management segment are being amortized over a ten-year period on a straight-line basis.

Total amortization expense associated with finite-lived intangibles in 2017, 2016 and 2015 was $4.4 million, $4.8 million and $4.6 million, respectively.