XML 27 R12.htm IDEA: XBRL DOCUMENT v3.20.4
Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
    Property, plant and equipment consists of the following (in thousands):
December 31,
20202019
Building and leasehold improvements$92,977 $93,097 
Laboratory equipment40,121 36,623 
Computer equipment and software28,684 26,910 
Manufacturing equipment21,796 22,030 
Furniture, fixtures, and other9,872 9,662 
Depreciable property, plant and equipment at cost193,450 188,322 
Less: accumulated depreciation(138,488)(127,875)
Depreciable property, plant and equipment, net54,962 60,447 
Construction-in-progress4,700 5,218 
Property, plant and equipment, net$59,662 $65,665 
    Building and leasehold improvements include our manufacturing, research and development and administrative facilities and the related improvements to these facilities. Laboratory and manufacturing equipment include assets that support both our manufacturing and research and development efforts. Construction-in-progress includes assets being built to enhance our manufacturing and research and development efforts.
    Depreciation and amortization expense on property, plant and equipment for the years ended December 31, 2020, 2019, and 2018 was $12.5 million, $11.0 million, and $8.8 million, respectively.