Information on Business Segments (Details 1) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,262,006,000	$ 1,091,566,000	$ 928,780,000
Long-lived assets	1,475,400,000	1,544,200,000	1,220,100,000
Aerospace [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	440,000,000	404,000,000	390,500,000
Industrial [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	822,100,000	687,600,000	538,300,000
Domestic [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	618,900,000	593,300,000	529,900,000
Long-lived assets	380,600,000	330,200,000	372,000,000
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	677,600,000	524,100,000	421,700,000
Long-lived assets	1,094,900,000	1,214,000,000	848,100,000
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(34,500,000)	(25,900,000)	(22,800,000)
Long-lived assets	0	0	0
Sales from international locations to domestic locations	78.00%
Singapore [Member] | Aerospace [Member] | Intangible Assets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	220,700,000
China [Member] | Industrial [Member] | Goodwill and Intangible Assets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	151,700,000
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	249,900,000	140,800,000
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	410,000,000
Switzerland [Member] | Industrial [Member] | Goodwill And Property Plant And Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 165,700,000