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Public Offerings - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended		3 Months Ended	9 Months Ended
	Nov. 30, 2012	Feb. 29, 2012	Dec. 31, 2012	Sep. 30, 2012
Earnings Per Share Pro Forma [Abstract]
Public offering of common stock per share amount	$ 6.10	$ 5.61
Shares sold by company		1,000,000
Number of shares sold by stockholders	27,795,630	15,516,587
Proceeds after commissions and other direct selling expenses		$ 4,329		$ 4,329
Sale of Stock, Consideration Received on Transaction	0
Proceeds from Existing Shareholders on Sale	0
Expenses related to offering			$ 353

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The cash inflow from the additional capital contribution to the entity.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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