Information on Business Segments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) Segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Revenues	$ 1,450,871	$ 1,261,868	$ 1,258,846
Operating profit	88,992	57,119	150,018
Assets	3,308,014	2,413,730	2,576,800
Depreciation and amortization	115,818	92,150	91,085
Capital expenditures	55,700	35,100	34,100
Interest expense	58,171	14,624	16,209
Other expense (income), net	(2,443)	4,310	5,992
Income before income taxes	33,264	38,185	127,817
Long-lived assets	2,391,000	1,663,400	1,874,600
Impairment charge (see below)	0	68,194	0
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Revenues	0	0	0
Operating profit	0	0	0
Assets	157,400	142,700	165,900
Depreciation and amortization	500	700	900
Capital expenditures	$ 600	$ 1,000	$ 200
General Electric [Member]
Segment Reporting Information [Line Items]
Revenue by major customer	21.00%	16.00%	17.00%
Industrial [Member]
Segment Reporting Information [Line Items]
Revenues	$ 842,821	$ 832,715	$ 896,483
Impairment charge (see below)	68,194	68,194
Industrial [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	842,800	832,700	896,500
Operating profit	36,000	(19,100)	97,700
Assets	1,685,300	1,680,400	1,827,900
Depreciation and amortization	53,700	54,100	57,500
Capital expenditures	22,400	19,200	21,300
Aerospace [Member]
Segment Reporting Information [Line Items]
Revenues	608,050	429,153	362,363
Impairment charge (see below)		0
Aerospace [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	608,100	429,200	362,400
Operating profit	53,000	76,200	52,300
Assets	1,465,300	590,600	583,000
Depreciation and amortization	61,600	37,300	32,800
Capital expenditures	$ 32,800	$ 14,900	$ 12,700