Information on Business Segments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Revenues	$ 1,258,846	$ 1,124,391	$ 1,491,118
Operating profit	150,018	123,370	236,448
Assets	2,576,820	2,676,226	2,738,300
Depreciation and amortization	91,085	87,656	99,059
Capital expenditures	34,117	40,698	53,286
Interest expense	16,209	15,944	20,629
Other expense (income), net	5,992	5,931	8,975
Income before income taxes	$ 127,817	$ 101,495	$ 206,844
General Electric [Member]
Segment Reporting Information [Line Items]
Revenue by major customer	16.00%	17.00%	21.00%
Industrial [Member]
Segment Reporting Information [Line Items]
Revenues	$ 896,483	$ 770,119	$ 938,507
Operating profit	97,700	66,600	114,000
Assets	1,827,900	1,908,400	1,879,300
Depreciation and amortization	57,500	57,700	62,400
Capital expenditures	21,300	19,400	25,300
Aerospace [Member]
Segment Reporting Information [Line Items]
Revenues	362,363	354,272	552,611
Operating profit	52,300	56,800	122,500
Assets	583,000	623,500	704,300
Depreciation and amortization	32,800	29,000	35,900
Capital expenditures	12,700	20,800	26,000
Other [Member]
Segment Reporting Information [Line Items]
Revenues	0	0	0
Operating profit	0	0	0
Assets	165,900	144,300	154,800
Depreciation and amortization	900	900	800
Capital expenditures	$ 200	$ 500	$ 2,000