Discontinued Operation - Summary of Carrying Amounts for Major Classes of Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Assets:
Trade receivables	$ 11,755
Goodwill	4,886
Prepaid expenses and other current assets	219
Fixed assets, net	162
Other assets, net	88
Total assets	17,110
Liabilities:
Accounts payable and other accrued liabilities	712
Accrued payroll costs	4,177
Other long-term liabilities	868
Total liabilities	5,757
Net assets	$ 11,353