Revenue - Revenue by Category (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Net sales	$ 1,495,889	$ 1,436,499	$ 1,230,754
Aerospace OEM [Member]
Disaggregation of Revenue [Line Items]
Net sales	347,178
Aerospace Aftermarket [Member]
Disaggregation of Revenue [Line Items]
Net sales	164,175
Medical, Personal Care & Packaging [Member]
Disaggregation of Revenue [Line Items]
Net sales	220,269
Tool and Die [Member]
Disaggregation of Revenue [Line Items]
Net sales	115,635
General Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	244,007
Auto Molding Solutions [Member]
Disaggregation of Revenue [Line Items]
Net sales	208,767
Auto Production [Member]
Disaggregation of Revenue [Line Items]
Net sales	187,065
Automation [Member]
Disaggregation of Revenue [Line Items]
Net sales	8,793
Americas [Member]
Disaggregation of Revenue [Line Items]
Net sales	752,544
Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	462,720
Asia [Member]
Disaggregation of Revenue [Line Items]
Net sales	272,961
Other Geographic Market [Member]
Disaggregation of Revenue [Line Items]
Net sales	7,664
Engineered Components Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	285,929
Molding Solutions Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	503,793
Force & Motion Control Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	196,212
Automation Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	8,793
Aerospace Original Equipment Manufacturing Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	336,987
Aerospace Aftermarket Products and Services [Member]
Disaggregation of Revenue [Line Items]
Net sales	164,175
Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	994,727	973,900	824,200
Industrial [Member] | Aerospace OEM [Member]
Disaggregation of Revenue [Line Items]
Net sales	10,191
Industrial [Member] | Aerospace Aftermarket [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Industrial [Member] | Medical, Personal Care & Packaging [Member]
Disaggregation of Revenue [Line Items]
Net sales	220,269
Industrial [Member] | Tool and Die [Member]
Disaggregation of Revenue [Line Items]
Net sales	115,635
Industrial [Member] | General Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	244,007
Industrial [Member] | Auto Molding Solutions [Member]
Disaggregation of Revenue [Line Items]
Net sales	208,767
Industrial [Member] | Auto Production [Member]
Disaggregation of Revenue [Line Items]
Net sales	187,065
Industrial [Member] | Automation [Member]
Disaggregation of Revenue [Line Items]
Net sales	8,793
Industrial [Member] | Americas [Member]
Disaggregation of Revenue [Line Items]
Net sales	394,361
Industrial [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	368,159
Industrial [Member] | Asia [Member]
Disaggregation of Revenue [Line Items]
Net sales	228,663
Industrial [Member] | Other Geographic Market [Member]
Disaggregation of Revenue [Line Items]
Net sales	3,544
Industrial [Member] | Engineered Components Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	285,929	292,200	283,400
Industrial [Member] | Molding Solutions Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	503,793	487,300	376,600
Industrial [Member] | Force & Motion Control Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	196,212	194,400	164,200
Industrial [Member] | Automation Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	8,793	0	0
Industrial [Member] | Aerospace Original Equipment Manufacturing Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Industrial [Member] | Aerospace Aftermarket Products and Services [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	501,162	462,600	406,500
Aerospace [Member] | Aerospace OEM [Member]
Disaggregation of Revenue [Line Items]
Net sales	336,987
Aerospace [Member] | Aerospace Aftermarket [Member]
Disaggregation of Revenue [Line Items]
Net sales	164,175
Aerospace [Member] | Medical, Personal Care & Packaging [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Tool and Die [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | General Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Auto Molding Solutions [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Auto Production [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Automation [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Americas [Member]
Disaggregation of Revenue [Line Items]
Net sales	358,183
Aerospace [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	94,561
Aerospace [Member] | Asia [Member]
Disaggregation of Revenue [Line Items]
Net sales	44,298
Aerospace [Member] | Other Geographic Market [Member]
Disaggregation of Revenue [Line Items]
Net sales	4,120
Aerospace [Member] | Engineered Components Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Molding Solutions Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Force & Motion Control Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Automation Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	0
Aerospace [Member] | Aerospace Original Equipment Manufacturing Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	336,987	323,400	288,400
Aerospace [Member] | Aerospace Aftermarket Products and Services [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 164,175	$ 139,200	$ 118,200
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue transfered percent	90.00%
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue transfered percent	10.00%