Estimated Useful Life (Details)	12 Months Ended
	Mar. 31, 2014
Equipment Leased to Other Party [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years 0 months 0 days
Equipment Leased to Other Party [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	2 years 0 months 0 days
All Nonrental Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	55 years 0 months 0 days
All Nonrental Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years 0 months 0 days