Note 5. Investment in Joint Venture (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	30.00%
Paid-In Capital Charge For Difference Between Carrying Value of Noncontrolling Interest and Fair Value of Consideration (in Dollars)	$ 1.1

Paid-In Capital Charge For Difference Between Carrying Value of Non-controlling Interest and Fair Value of Consideration.

No definition available.

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