Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2020

Property Plant And Equipment [Abstract]

Schedule of Property Plant and Equipment

Property, plant and equipment at December 31 were:

	2020			2019
Buildings and leasehold improvements	$	267,700		$	228,522
Machinery and equipment		942,405			863,771
		1,210,105			1,092,293
Less:  Accumulated depreciation and amortization		(791,348	)		(706,658	)
		418,757			385,635
Construction in-progress		45,060			30,747
Land		66,998			53,192
	$	530,815		$	469,574