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Indemnity Capital Stock (Details) (Indemnity)	3 Months Ended
Indemnity Capital Stock (Details) (Indemnity)	Mar. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Class A
Common Stock
Class A common stock shares issued upon conversion of Class B common stock shares (in shares)	4,800
Class B
Common Stock
Ratio for converting shares of Class B common stock into shares of Class A common stock (as a percent)		2400.00%	2400.00%
Class B common stock shares converted into Class A common stock shares (in shares)	2

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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