Schedule of Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Accrued Liabilities [Line Items]
Other taxes	$ 2,711	$ 2,759
Restructuring	441	626
Professional fees	1,157	1,146
Income taxes	1,167	1,954
Professional services partners fees	256	120
Short-term deferred rent	1,111	1,428
Self-insurance health and dental claims	1,707	1,931
Dividends payable		1,132	1,118
Employee reimbursable expenses	879	897
Other	6,105	6,343
Total accrued expenses	$ 15,534	$ 18,336