Discontinued Operations and Divestitures - Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets:
Accounts receivable, net	$ 4,699	$ 6,113
Goodwill and other intangible assets, net	301	1,435
Property and equipment, net	171	212
Other assets	58	89
Assets of discontinued operations	5,229	7,849
Liabilities:
Accounts payable	388	309
Accrued personnel	591	1,000
Accrued expenses	324	641
Liabilities of discontinued operations	$ 1,303	$ 1,950