Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022		Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 883,830		$ 857,110	$ 769,970
Operating Profit (loss)	99,060		95,090	(88,290)
Capital Expenditures	45,960		45,060	40,480
Depreciation and Amortization	53,220		53,450	49,770
Assets	1,305,000		1,303,640	1,193,880
Net gain (loss) on dispositions of assets	21,950		(130)	(1,290)
Proceeds from Sale of Property, Plant, and Equipment	23,300
Packaging [Member]
Segment Reporting Information [Line Items]
Net sales	522,180		533,260	488,340
Operating Profit (loss)	81,000		96,490	93,990
Capital Expenditures	33,170		34,080	30,730
Depreciation and Amortization	29,340		30,500	27,600
Assets	776,550		739,920	721,440
Aerospace [Member]
Segment Reporting Information [Line Items]
Net sales	188,090		183,340	167,740
Operating Profit (loss)	8,060	[1]	13,270	(133,440)
Capital Expenditures	6,900		5,390	5,770
Depreciation and Amortization	19,620		18,700	18,130
Assets	347,720		353,800	348,190
Net gain (loss) on dispositions of assets	4,800
Specialty Products [Member]
Segment Reporting Information [Line Items]
Net sales	173,560		140,510	113,890
Operating Profit (loss)	30,250		22,550	4,350
Capital Expenditures	5,860		5,500	3,890
Depreciation and Amortization	4,130		4,120	3,910
Assets	86,290		73,260	65,520
Corporate [Member]
Segment Reporting Information [Line Items]
Operating Profit (loss)	(20,250)	[2]	(37,220)	(53,190)
Capital Expenditures	30		90	90
Depreciation and Amortization	130		130	130
Assets	94,440		$ 136,660	$ 58,730
Net gain (loss) on dispositions of assets	$ 17,600

[1] In 2022, the Company completed the sale of vacant land adjacent to the Company's Tolleson, Arizona, manufacturing facility for net proceeds of $5.0 million, and recognized a $4.8 million gain on the sale, which is included within the Aerospace segment.

[2] In 2022, the Company sold a non-core facility in City of Industry, California, for net proceeds of $23.3 million, and recognized a $17.6 million gain on the sale, which is included in Corporate operating loss for 2022 and included within net gain (loss) on disposition of assets in the accompanying consolidated statement of operations.