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OTHER ASSETS, NET (Details 2) (USD $) In Millions, unless otherwise specified	Jan. 31, 2012	Dec. 31, 2011
OTHER ASSETS, NET
Proceeds from sale of on-site air separation unit	$ 18.0
Gain on sale of on-site separation unit	17.4
On-site air separation unit		$ 0.6

The difference between the proceeds received and the carrying value of the long-lived asset. If the proceeds received exceeds the carrying value of the long-lived asset, then there is a gain. If the proceeds received is less than the carrying value of the long-lived asset, then there is a loss.

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