Goodwill and Other Intangible Assets (Details 1) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	$ 162.8		$ 162.8		$ 163.2
Intangible assets, Accumulated Amortization	54.8		54.8		50.2
Intangible assets, Net Carrying Amount	108.0		108.0		113.0
Intangible assets not subject to amortization:
Tradename	2.0		2.0		2.0
Indefinite Lived Faa Air Agency Certificates	14.2		14.2		14.2
Indefinite Lived Intangible Assets Net	16.2		16.2		16.2
Total intangible assets, Gross Carrying Amount	179.0		179.0		179.4
Total intangible assets, Net Carrying Amount	124.2		124.2		129.2
Goodwill and Other Intangible Assets (Textuals) [Abstract]
Amortization expense for intangible assets	2.3	2.4	4.6	4.8
Future Amortization Expense Year 2011			9.5
Future Amortization Expense Year 2012			9.1
Future Amortization Expense Year 2013			7.6
Future Amortization Expense Year 2014			7.4
Future Amortization Expense Year 2015			7.4
Customer Relationships [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	81.5		81.5		82.0
Intangible assets, Accumulated Amortization	20.8		20.8		18.6
Intangible assets, Net Carrying Amount	60.7		60.7		63.4
Engineering drawings [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	2.0		2.0		2.0
Intangible assets, Accumulated Amortization	2.0		2.0		2.0
Intangible assets, Net Carrying Amount	0		0		0
Know-how [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	2.1		2.1		2.1
Intangible assets, Accumulated Amortization	1.1		1.1		1.0
Intangible assets, Net Carrying Amount	1.0		1.0		1.1
Industrial license agreements [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	0.4		0.4		0.4
Intangible assets, Accumulated Amortization	0.1		0.1		0.1
Intangible assets, Net Carrying Amount	0.3		0.3		0.3
Land-use rights [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	8.4		8.4		8.2
Intangible assets, Accumulated Amortization	3.6		3.6		3.3
Intangible assets, Net Carrying Amount	4.8		4.8		4.9
Patents [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	4.4		4.4		4.4
Intangible assets, Accumulated Amortization	3.4		3.4		3.3
Intangible assets, Net Carrying Amount	1.0		1.0		1.1
Technology use [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	38.9		38.9		39.0
Intangible assets, Accumulated Amortization	7.3		7.3		6.3
Intangible assets, Net Carrying Amount	31.6		31.6		32.7
Trademarks [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	6.0		6.0		6.0
Intangible assets, Accumulated Amortization	5.1		5.1		5.0
Intangible assets, Net Carrying Amount	0.9		0.9		1.0
PMA licenses [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	8.8		8.8		8.8
Intangible assets, Accumulated Amortization	2.9		2.9		2.7
Intangible assets, Net Carrying Amount	5.9		5.9		6.1
Noncompete Agreements [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	2.7		2.7		2.7
Intangible assets, Accumulated Amortization	2.1		2.1		1.9
Intangible assets, Net Carrying Amount	0.6		0.6		0.8
Unpatented Technology [Member]
Intangible assets subject to amortization:
Intangible assets, Gross Carrying Amount	7.6		7.6		7.6
Intangible assets, Accumulated Amortization	6.4		6.4		6.0
Intangible assets, Net Carrying Amount	$ 1.2		$ 1.2		$ 1.6