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Earnings Per Common Share ("EPS") - Additional Information (Detail) (USD $)	6 Months Ended
	Dec. 31, 2012	Sep. 12, 2012
Dilutive common shares	0
Shares authorized to be repurchased	240,563	240,563
Percentage of current outstanding shares		5.00%
Repurchase of shares	176,552
Repurchase of shares in average price	$ 13.54
Maximum number of shares to be purchased	64,011

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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