Information on Business Segments (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,495,889	$ 1,436,499	$ 1,230,754
Long-lived assets	$ 1,982,400	$ 1,584,800	$ 1,503,600
Sales from international locations to domestic locations	72.00%	78.00%	82.00%
Domestic [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 624,300	$ 638,600	$ 562,600
Long-lived assets	366,100	366,700	368,200
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	958,700	868,300	727,400
Long-lived assets	1,616,200	1,218,100	1,135,500
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(87,100)	(70,400)	(59,200)
Long-lived assets	0	0	0
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	193,600
Long-lived assets	233,300	237,600	238,300
Italy [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	412,000
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	331,400	301,700	238,300
Long-lived assets	494,000	514,000	449,900
Switzerland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets		160,000	169,300
Engineered Components Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	285,929
Molding Solutions Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	503,793
Force & Motion Control Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	196,212
Automation Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	8,793
Aerospace Original Equipment Manufacturing Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	336,987
Aerospace Aftermarket Products and Services [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	164,175
Industrial [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	994,727	973,900	824,200
Industrial [Member] | Engineered Components Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	285,929	292,200	283,400
Industrial [Member] | Molding Solutions Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	503,793	487,300	376,600
Industrial [Member] | Force & Motion Control Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	196,212	194,400	164,200
Industrial [Member] | Automation Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	8,793	0	0
Industrial [Member] | Aerospace Original Equipment Manufacturing Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0
Industrial [Member] | Aerospace Aftermarket Products and Services [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0
Aerospace [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	501,162	462,600	406,500
Aerospace [Member] | Engineered Components Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0
Aerospace [Member] | Molding Solutions Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0
Aerospace [Member] | Force & Motion Control Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0
Aerospace [Member] | Automation Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0
Aerospace [Member] | Aerospace Original Equipment Manufacturing Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	336,987	323,400	288,400
Aerospace [Member] | Aerospace Aftermarket Products and Services [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 164,175	$ 139,200	$ 118,200