Goodwill and Intangible Assets
 12 Months Ended
Dec. 31, 2015
Intangible Assets, Intangible Liabilities, And Goodwill Disclosure [Abstract]  
Goodwill and Intangible Assets
Goodwill and Intangible Assets
The following is a summary of our intangibles as of December 31, 2015 and 2014:
 
December 31, 2015
 
December 31, 2014
 
Balance
 
Remaining
Weighted Average
Amortization
Period in Years
 
Balance
 
Remaining
Weighted Average
Amortization
Period in Years
 
(Dollars in thousands)
Intangible assets:
 
 
 
 
 
 
 
Above market lease intangibles
$
64,516

 
11.4
 
$
60,251

 
11.1
In-place lease intangibles
37,353

 
13.4
 
26,943

 
12.9
Tradename, technology and customer relationships
2,950

 
4.5
 
—

 
N/A
Accumulated amortization
(45,390
)
 
N/A
 
(35,221
)
 
N/A
Goodwill
145,374

 
N/A
 
88,959

 
N/A
Net intangible assets
$
204,803

 
12.3
 
$
140,932

 
11.7
Intangible liabilities:
 
 
 
 
 
 
 
Below market lease intangibles
$
194,141

 
14.9
 
$
198,170

 
15.2
Above market ground lease intangibles
1,907

 
52.9
 
—

 
N/A
Accumulated amortization
(75,052
)
 
N/A
 
(61,882
)
 
N/A
Purchase option intangibles
9,352

 
N/A
 
9,352

 
N/A
Net intangible liabilities
$
130,348

 
15.5
 
$
145,640

 
15.2

________
N/A—Not Applicable 
Above market lease intangibles and in-place lease intangibles are included in acquired lease intangibles within real estate investments on our combined consolidated balance sheets. Below market lease intangibles, above market ground lease intangibles and purchase option intangibles are included in lease intangible liabilities, net on our combined consolidated balance sheets. Tradename, technology and customer relationships are associated with our specialty valuation firm subsidiary and included in other assets on our combined consolidated balance sheets. For the years ended December 31, 2015, 2014 and 2013, our net amortization related to these intangibles was $5.9 million, $8.3 million and $8.1 million, respectively. The estimated net amortization related to these intangibles for each of the next five years is as follows: 2016—$5.0 million; 2017—$4.8 million; 2018—$4.6 million; 2019—$5.0 million; and 2020—$4.9 million.
The following table displays a rollforward of the carrying amount of goodwill from January 1, 2014 to December 31, 2015 (in thousands):
Balance as of January 1, 2014
$
88,989

Additions
—

Disposals
(30
)
Balance as of December 31, 2014
88,959

Additions
56,992

Disposals
(577
)
Balance as of December 31, 2015
$
145,374