December 31,

 

 

 

2016

 

2015

 

 

 

(in thousands)

 

Office equipment

 

$
9,243

 

$
6,753

 

Laboratory equipment

 

 
37,203

 

 
31,296

 

Computer equipment

 

 
38,184

 

 
22,491

 

Land

 

 
4,125

 

 

 —

 

Building and leasehold improvements

 

 
130,734

 

 
70,729

 

 

 

 
219,489

 

 
131,269

 

Less accumulated depreciation and amortization

 

 
(51,810)

 

 
(45,263)

 

Property and equipment, net

 

$
167,679

 

$
86,006