Property, Plant and Equipment

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment at December 31, 2019 and 2018 consists of the following:

(In thousands)	2019		2018		Estimated useful lives in years
Land	$	27,184	$	21,913
Buildings and improvements	220,563		185,175		5-35
Manufacturing equipment	350,664		298,529		5-10
Canisters and cylinders	107,108		90,790		3-12
Molds	75,482		72,089		3-5
Office furniture and equipment	157,770		142,818		3-8
Construction in progress	63,197		69,437
Total property, plant and equipment	1,001,968		880,751
Less accumulated depreciation	522,424		461,222
Property, plant and equipment, net	$	479,544	$	419,529

The table below sets forth the depreciation expense for the years ended December 31, 2019, 2018 and 2017:

(In thousands)	2019		2018		2017
Depreciation expense	$	74,975	$	65,116	$	58,208