Discontinued Operations and Divestitures - Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets:
Accounts receivable, net	$ 4,570	$ 4,699
Other assets	327	530
Assets of discontinued operations	4,897	5,229
Liabilities:
Accounts payable	414	388
Accrued personnel	550	591
Accrued expenses	314	324
Liabilities of discontinued operations	$ 1,278	$ 1,303