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Shareholders' Equity Equity Issuances (Details) (Private Placement [Member], USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012
Private Placement [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues	5,300,000	13,400,000
Proceeds from Lines of Credit	$ 3.3
Line of Credit Assumed	$ 16.7

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The fair value of line of credit assumed in noncash investing or financing activities.

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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).

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Number of new stock issued during the period.

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