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Property, Plant and Equipment, Net
 12 Months Ended
Dec. 31, 2016
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net
Property, plant and equipment consist of the following:
 
December 31,
 
2016
 
2015
Land and land improvements
$
11,324

 
$
9,119

Buildings and building improvements
8,123

 
7,520

Furniture and fixtures
2,176

 
1,283

Equipment
44,392

 
36,016

Leasehold improvements
15,105

 
6,888

Breeding stock
3,893

 
—

Computer hardware and software
6,844

 
5,960

Construction and other assets in progress
6,865

 
2,193

 
98,722

 
68,979

Less: Accumulated depreciation and amortization
(34,050
)
 
(26,240
)
Property, plant and equipment, net
$
64,672

 
$
42,739


Depreciation expense was $9,387, $7,872 and $6,178 for the years ended December 31, 2016, 2015 and 2014, respectively.