Property and Equipment:

9 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Property and Equipment [Text Block]

Property and Equipment

Property and equipment consisted of the following (in thousands): 

	September 30, 2019			December 31, 2018
Machinery and equipment	$	213,957		$	203,431
Land, building and building improvements	228,960			212,283
Molds	59,749			59,700
Computer equipment and software	82,993			80,420
Furniture and fixtures	7,405			7,409
Instruments placed with customers(1)	70,146			60,757
Construction in progress	85,908			70,864
Total property and equipment, cost	749,118			694,864
Accumulated depreciation	(305,031		)	(262,223		)
Property and equipment, net	$	444,087		$	432,641

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⁽¹⁾Instruments placed with customers consist of drug-delivery and monitoring systems placed with customers.

Depreciation expense was $14.8 million and $44.6 million for the three and nine months ended September 30, 2019, respectively, as compared to $15.1 million and $42.8 million for the three and nine months ended September 30, 2018, respectively.