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Discontinued Operations - Summary of Greenline's Assets and Liabilities from Discontinued Operations in the Consolidated Statement of Financial Position (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Assets    
Cash and cash equivalents $ 656  
Accounts receivable 2,181  
Other assets 3,549  
Assets from discontinued operations 6,386   
Liabilities    
Accounts payable, accrued expenses and other liabilities 1,034  
Deferred revenue 2,268  
Liabilities from discontinued operations $ 3,302