Property, Plant and Equipment, Net

3 Months Ended

Mar. 31, 2018

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, Net

Property, Plant and Equipment, Net

Property, plant and equipment consist of the following:

	March 31, 2018			December 31, 2017
Land and land improvements	$	11,815		$	11,767
Buildings and building improvements	18,160			18,183
Furniture and fixtures	2,516			2,515
Equipment	69,568			65,863
Leasehold improvements	27,811			25,277
Breeding stock	4,204			3,832
Computer hardware and software	10,442			10,128
Trees	7,996			6,642
Construction and other assets in progress	15,819			14,113
	168,331			158,320
Less: Accumulated depreciation and amortization	(49,087		)	(45,646		)
Property, plant and equipment, net	$	119,244		$	112,674

Depreciation expense was $3,456 and $2,782 for the three months ended March 31, 2018 and 2017, respectively.