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Earnings per Share - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Calculation For Basic And Diluted Earnings Per Common Share [Line Items]
Each share convertible into shares	69
Redemption of preferred stock, shares		2,367
Redemption of preferred stock		$ 2,367
Series A Preferred Stock
Calculation For Basic And Diluted Earnings Per Common Share [Line Items]
Dividend Rate	6.00%
Number of preferred stock converted	12,784
Redemption of preferred stock, shares	2,367
Redemption of preferred stock	$ 2,370
Accrued and unpaid dividends	$ 9

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Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
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Number of shares issued for each share of convertible preferred stock that is converted.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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The percentage rate used to calculate dividend payments on preferred stock.

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Number of stock bought back by the entity at the exercise price or redemption price.

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Equity impact of the value of stock bought back by the entity at the exercise price or redemption price.

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