Restructuring and Integration Expense (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Plant Rationalization Program [Abstract]
Gain on sale of property, plant and equipment		$ 0		$ 0		$ 3,997
Net proceeds from sale of Grapevine, Texas facility		0		4,801		0
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period		336		742
Restructuring and integration costs provided for during the period		464	[1]	2,585	[1]	4,510
Cash payments		(371)		(2,094)
Reclassification of environment liability	[1]	(250)		(386)
Reclassification of inventory reserves				(511)
Exit activity liability, end of period		179		336		742
Plant Rationalization Program [Member]
Plant Rationalization Program [Abstract]
Gain on sale of property, plant and equipment						3,900
Net proceeds from sale of Grapevine, Texas facility				4,800
Restructuring and integration activities [Roll Forward]
Cash payments		(111,000)
Exit activity liability, end of period		65,000
Orlando Plant Rationalization Program [Member]
Restructuring and integration activities [Roll Forward]
Cash payments		(46,000)
Exit activity liability, end of period		114,000
Pollak Relocation [Member]
Restructuring and integration activities [Roll Forward]
Cash payments		(214,000)
Exit activity liability, end of period		0
Workforce Reduction [Member]
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period		336		742
Restructuring and integration costs provided for during the period	[1]	0		0
Cash payments		(157)		(406)
Reclassification of environment liability	[1]	0		0
Reclassification of inventory reserves				0
Exit activity liability, end of period		179		336		742
Other Exit Costs [Member]
Restructuring and integration activities [Roll Forward]
Exit activity liability, beginning of period		0		0
Restructuring and integration costs provided for during the period	[1]	464		2,585
Cash payments		(214)		(1,688)
Reclassification of environment liability	[1]	(250)		(386)
Reclassification of inventory reserves				(511)
Exit activity liability, end of period		$ 0		$ 0		$ 0

[1] Included in restructuring and integration costs in 2020 and 2019 is a $0.3 million and $0.4 million increase, respectively, in environmental cleanup costs related to ongoing monitoring and remediation in connection with the prior closure of our manufacturing operations at our Long Island City, New York location.  The environmental liability has been reclassed to accrued liabilities as of December 31, 2020 and 2019, respectively.