Revenue - Revenue by Category (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 372,587	$ 369,797	$ 1,120,947	$ 1,111,772
Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	231,688	244,132	707,594	739,670
Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	140,899	125,665	413,353	372,102
Americas [Member]
Disaggregation of Revenue [Line Items]
Net sales	194,035	187,208	577,740	554,963
Americas [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	93,086	98,948	278,520	288,265
Americas [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	100,949	88,260	299,220	266,698
Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	102,842	111,674	334,636	346,205
Europe [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	77,308	86,083	261,388	273,214
Europe [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	25,534	25,591	73,248	72,991
Asia [Member]
Disaggregation of Revenue [Line Items]
Net sales	73,877	69,062	202,895	205,204
Asia [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	60,433	58,151	164,844	175,533
Asia [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	13,444	10,911	38,051	29,671
Other Geographic Market [Member]
Disaggregation of Revenue [Line Items]
Net sales	1,833	1,853	5,676	5,400
Other Geographic Market [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	861	950	2,842	2,658
Other Geographic Market [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	972	903	2,834	2,742
Engineered Components Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	63,069	69,994	198,291	220,448
Engineered Components Products [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	63,069	69,994	198,291	220,448
Engineered Components Products [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Molding Solutions Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	110,546	49,251	323,242	149,299
Molding Solutions Products [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	110,546	49,251	323,242	149,299
Molding Solutions Products [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Force & Motion Control Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	45,676	124,887	144,746	369,923
Force & Motion Control Products [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	45,676	124,887	144,746	369,923
Force & Motion Control Products [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Automation Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	12,397	0	41,315	0
Automation Products [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	12,397	0	41,315	0
Automation Products [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Aerospace Original Equipment Manufacturing Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	92,885	84,741	274,708	249,963
Aerospace Original Equipment Manufacturing Products [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Aerospace Original Equipment Manufacturing Products [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	92,885	84,741	274,708	249,963
Aerospace Aftermarket Products and Services [Member]
Disaggregation of Revenue [Line Items]
Net sales	48,014	40,924	138,645	122,139
Aerospace Aftermarket Products and Services [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Aerospace Aftermarket Products and Services [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 48,014	$ 40,924	$ 138,645	$ 122,139
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue transfered percent	90.00%		90.00%
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue transfered percent	10.00%		10.00%