Discontinued Operations - Assets and Liabilities of Discontinued Operations on Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Disposal Group Including Discontinued Operation Balance Sheet Disclosures [Abstract]
Receivables, net	$ 97	$ 148
Total current assets	97	148
Other assets, net	426	483
Deferred income tax assets, net	5,622	5,622
Total assets of discontinued operations	6,145	6,253
Accounts payable and accrued expenses	95	76
Remaining lease obligations	7,303	8,143
Total current liabilities	7,398	8,219
Remaining lease obligations	4,817	6,331
Other	90	91
Total liabilities of discontinued operations	$ 12,305	$ 14,641