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Commitments and Contingencies Commitments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Commitments [Line Items]
Commitments and Contingencies	$ 26,352	$ 7,798
Mortgage Loans on Real Estate [Member]
Commitments [Line Items]
Commitments and Contingencies	13,709	2,131
Commercial Loan [Member]
Commitments [Line Items]
Commitments and Contingencies	8,748	2,044
Line of Credit [Member]
Commitments [Line Items]
Commitments and Contingencies	3,560	3,173
Letter of Credit [Member]
Commitments [Line Items]
Commitments and Contingencies	334	244
Private Equity Funds [Member]
Commitments [Line Items]
Commitments and Contingencies	$ 0	$ 206

Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.

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