ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accrued Expenses and Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Payables and Accruals [Abstract]
Salaries, commissions and benefits	$ 31,196	$ 30,051
Sales, use and income taxes	11,225	11,161
Fees for professional services	1,403	1,773
Rent	1,774	2,299
Deferred revenue	1,772	1,623
Other accruals	7,352	9,053
Total accrued expenses and other liabilities	$ 54,722	$ 55,960