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Discontinued Operations - Assets and Liabilities of Discontinued Operations on Condensed Consolidated Balance Sheets (Detail) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Disposal Group Including Discontinued Operation Balance Sheet Disclosures [Abstract]    
Receivables, net $ 171 $ 148
Total current assets 171 148
Other assets, net 300 483
Deferred income tax assets, net 5,622 5,622
Total assets of discontinued operations 6,093 6,253
Accounts payable and accrued expenses 179 76
Remaining lease obligations 6,255 8,143
Total current liabilities 6,434 8,219
Remaining lease obligations 2,156 6,331
Other   91
Total liabilities of discontinued operations $ 8,590 $ 14,641