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Goodwill and Intangible Assets (Notes)
9 Months Ended
Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
Goodwill and Intangible Assets
In accordance with the Intangibles – Goodwill and Other topic of the FASB ASC, goodwill is not amortized but is reviewed for potential impairment at the reporting unit level. Management analyzes its goodwill for impairment on an annual basis and between annual tests in certain circumstances such as material adverse changes in legal, business, regulatory and economic factors. An impairment loss is recorded to the extent that the carrying amount of goodwill exceeds its implied fair value.
During the third quarter of 2012, the Company changed its annual goodwill impairment testing date from September 30 to July 31, which did not result in any delay, acceleration or avoidance of impairment. The Company believes this date for the annual goodwill impairment test is preferable because it provides more time to complete the impairment testing as it occurs earlier within a quarterly reporting cycle. The additional time is preferable as it would allow more time before the quarterly reporting deadline to estimate the implied fair value of goodwill for comparison with its carrying value, if necessary. This change was applied prospectively beginning on July 31, 2012. Retrospective application to prior periods is impracticable as the Company is unable to objectively determine, without the use of hindsight, the assumptions that would have been used in those earlier periods. In connection with this change, the Company performed an impairment assessment as of July 31, 2012 and concluded that there was no impairment.
The core deposit intangible (“CDI”) is evaluated for impairment if events and circumstances indicate a possible impairment. The CDI is amortized on an accelerated basis over an estimated life of approximately 10 years.
The following table sets forth activity for goodwill and intangible assets for the period:
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
 
2012
 
2011
 
2012
 
2011
 
 
(in thousands)
Total goodwill at beginning of period
 
$
115,554

 
$
118,434

 
$
115,554

 
$
109,639

Established through acquisitions
 

 

 

 
8,795

Total goodwill at end of period
 
115,554

 
118,434

 
115,554

 
118,434

Core deposit intangible:
 
 
 
 
 
 
 
 
Gross core deposit intangible balance at beginning of period
 
32,441

 
28,497

 
32,441

 
26,651

Accumulated amortization at beginning of period
 
(14,545
)
 
(9,894
)
 
(12,275
)
 
(7,955
)
Core deposit intangible, net at beginning of period
 
17,896

 
18,603

 
20,166

 
18,696

Established through acquisitions
 

 
3,943

 

 
5,789

CDI current period amortization
 
(1,093
)
 
(1,177
)
 
(3,363
)
 
(3,116
)
Total core deposit intangible, net at end of period
 
16,803

 
21,369

 
16,803

 
21,369

Total goodwill and intangible assets at end of period
 
$
132,357

 
$
139,803

 
$
132,357

 
$
139,803


The following table provides the estimated future amortization expense of core deposit intangibles for the remaining three months ending December 31, 2012 and the succeeding four years:
 
 
Amount
 
 
(in thousands)
Year ending December 31,
 
 
2012
 
$
1,082

2013
 
3,964

2014
 
3,397

2015
 
2,645

2016
 
2,184