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Basis of Presentation and Summary of Significant Accounting Policies - Other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Schedule Of Other Assets [Line Items]
Prepaid insurance	$ 2,408	$ 401
Prepaid real estate taxes	309	184
Other	642	1,391
Total	$ 3,359	$ 1,976

Carrying amount as of the balance sheet date of unamortized costs of insurance coverage, which will be charged against earnings ratably over the period in which contractually agreed upon coverage's will be in effect; such periods expire within one year or the normal operating cycle, if longer.

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- Definition

Carrying amount as of the balance sheet date of payments made in advance for income and other taxes, which will be charged against earnings within one year or the normal operating cycle, if longer.

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