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Goodwill and Intangible Assets
3 Months Ended
Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
Goodwill and Intangible Assets
Goodwill was $75.1 million as of March 31, 2017 and December 31, 2016.
Identifiable intangible assets consist of the following:
 
 
 
As of March 31, 2017
 
As of December 31, 2016
 
Weighted-
Average
Life (years)
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Net Book Value
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Net Book Value
 
 
 
(in thousands)
Intangible assets subject to amortization:
 
 
 
 
 
 
 
 
 
 
 
 
 
Developed technology
6.3
 
$
11,231

 
$
(3,557
)
 
$
7,674

 
$
11,231

 
$
(3,118
)
 
$
8,113

Customer relationships
6.7
 
1,000

 
(236
)
 
764

 
1,000

 
(197
)
 
803

Trade names
6.1
 
519

 
(499
)
 
20

 
519

 
(496
)
 
23

Non-compete agreements
2.0
 
40

 
(38
)
 
2

 
40

 
(33
)
 
7

Total intangible assets
 
 
$
12,790

 
$
(4,330
)
 
$
8,460

 
$
12,790

 
$
(3,844
)
 
$
8,946


Amortization expense was $0.5 million and $0.6 million for the three months ended March 31, 2017 and 2016, respectively.
Estimated future amortization expense of the acquired identifiable intangible assets as of March 31, 2017 is as follows (in thousands):
2017 (for the remaining nine months)
$
1,444

2018
1,886

2019
1,859

2020
1,837

2021
1,332

2022 and thereafter
102

Total
$
8,460