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Commitments and Contingencies (Details - Other Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2013
Commitments and Contingencies Other Details [Line Items]
Restructuring costs incurred	$ 43.2

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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