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Summary Revolving Line of Credit And Various Notes Payable Constitute Short-Term and Long-Term Loan Balances Together (Detail) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Extinguishment of Debt [Line Items]    
Revolving line of credit, Long Term $ 50,150 $ 69,000
Revolving line of credit, Short-term 0 0
Revolving line of credit 50,150 69,000
Deferred loan fees, Long Term (574) (679)
Deferred loan fees, Short-term 0 0
Deferred loan fees (574) (679)
Notes payable, Long Term 0 0
Notes payable, Short-term 18 55
Notes payable 18 55
Long Term debt 49,576 68,321
Short-term 18 55
Total indebtedness $ 49,594 $ 68,376