Property, Plant and Equipment

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

6. Property, Plant and Equipment

	December 31,
	2020		2019
	(In thousands)
Land, buildings and improvements	$	38,833	$	38,299
Machinery and equipment		148,578		142,531
Tools, dies and auxiliary equipment		60,102		54,843
Furniture and fixtures		30,347		30,470
Leasehold improvements		11,948		11,711
Construction-in-progress		13,691		11,271
Total property, plant and equipment		303,499		289,125
Less accumulated depreciation		214,394		199,476
Total property, plant and equipment, net	$	89,105	$	89,649

Depreciation expense was $17.8 million in 2020, $17.4 million in 2019 and $16.1 million in 2018.