Information on Business Segments (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,091,566	$ 928,780	$ 865,078
Long-lived assets	1,544,163	1,220,100	862,700
Long-lived assets located in any one international country	1
Aerospace [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	404,000	390,500	382,500
Industrial [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	687,600	538,300	482,600
Domestic [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	593,300	529,900	495,600
Long-lived assets	330,200	372,000	303,700
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	524,100	421,700	394,700
Long-lived assets	1,214,000	848,100	559,000
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(25,900)	(22,800)	(25,300)
Long-lived assets	0	0	0
Sales from international locations to domestic locations	72.00%
Singapore [Member] | Aerospace [Member] | Intangible Assets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	229,500
China [Member] | Industrial [Member] | Goodwill and Intangible Assets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	156,400
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	140,800
Germany [Member] | Industrial [Member] | Goodwill, Property Plant and Equipment and Intangible Assets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	477,300
Switzerland [Member] | Industrial [Member] | Goodwill And Property Plant And Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 193,800