CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 77,379	$ 103,339
Accounts receivable, net of allowance for doubtful accounts of $708 as of September 30, 2013 and December 31, 2012, respectively	32,726	23,830
Prepaid expenses and other current assets	7,049	6,369
Deferred tax assets, net	4,031	2,616
Total current assets	121,185	136,154
Property and equipment, net	18,183	17,495
Intangibles, net	14,156	15,681
Goodwill	32,724	32,645
Deferred tax assets, net	4,755	4,183
Other assets	2,327	2,418
Total assets	193,330	208,576
CURRENT LIABILITIES:
Accounts payable	9,209	11,125
Accrued expenses	20,347	17,911
Deferred revenue	6,779	6,525
Total current liabilities	36,335	35,561
Deferred revenue, net of current	1,270	1,263
Other liabilities	1,397	1,509
Total liabilities	39,002	38,333
Commitments and contingencies (See Note 10)
STOCKHOLDERS’ EQUITY (See Note 11):
Common stock	54	56
Additional paid-in capital	239,227	252,320
Accumulated deficit	(84,571)	(81,780)
Accumulated other comprehensive loss	(382)	(353)
Total stockholders’ equity	154,328	170,243
Total liabilities and stockholders’ equity	$ 193,330	$ 208,576