Property, plant and equipment, net consisted of the following (in thousands):
September 30, 2019
December 31, 2018
Laboratory equipment
$
14,763
7,122
Land
1,300
Leasehold improvements
446
117
Computer equipment
1,001
276
Furniture and fixtures
1,214
—
Construction-in-progress
37,727
55,828
56,451
64,643
Less: Accumulated depreciation and amortization
(3,973)
(1,847)
52,478
62,796