ACCRUED LIABILITIES

12 Months Ended

Dec. 31, 2012

ACCRUED LIABILITIES

ACCRUED LIABILITIES

12.   ACCRUED LIABILITIES

        As of December 31, 2011 and 2012, the Company's accrued liabilities comprise the following:

	December 31,
	2011		2012
Accrued liabilities consist of:
Bonuses and accrued vacation	$	4,881	$	6,928
Tax contingencies and accruals for unrecognized income tax benefits		6,498		2,588
Auditing and consulting services		789		2,531
Accrued equity-based incentive awards		4,487		3,876
Other accrued liabilities		4,738		7,522
Total accrued liabilities	$	21,393	$	23,445