Summary of Significant Accounting Policies (Details)	12 Months Ended
	Sep. 30, 2012
Maximum [Member]
Property, plant and equipment estimated useful life
Rental equipment	10 years
Minimum [Member]
Property, plant and equipment estimated useful life
Rental equipment	3 years
Machinery and equipment [Member] | Maximum [Member]
Property, plant and equipment estimated useful life
Property useful lives	15 years
Machinery and equipment [Member] | Minimum [Member]
Property, plant and equipment estimated useful life
Property useful lives	3 years
Buildings and building improvements [Member] | Maximum [Member]
Property, plant and equipment estimated useful life
Property useful lives	50 years
Buildings and building improvements [Member] | Minimum [Member]
Property, plant and equipment estimated useful life
Property useful lives	10 years
Other [Member] | Maximum [Member]
Property, plant and equipment estimated useful life
Property useful lives	10 years
Other [Member] | Minimum [Member]
Property, plant and equipment estimated useful life
Property useful lives	5 years