CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 112,736	$ 88,796
Accounts receivable, net of allowance of $1,786 and $2,250, respectively	54,235	59,472
Unbilled revenues	41,961	24,475
Prepaid and other current assets	10,157	6,436
Deferred tax assets, current	4,016	4,384
Total current assets	223,105	183,563
Property and equipment, net	37,200	35,482
Restricted cash	2,404	2,582
Intangible assets, net	1,111	1,251
Goodwill	8,459	8,169
Deferred tax assets, long-term	1,791	1,875
Other long-term assets	540	2,691
Total assets	274,610	235,613
Current liabilities
Accounts payable	4,060	2,714
Accrued expenses	13,301	24,782
Deferred revenue	5,479	6,949
Due to employees	14,035	8,234
Taxes payable	9,029	8,712
Deferred tax liabilities, current	1,205	1,736
Total current liabilities	47,109	53,127
Taxes payable, long-term	1,211	1,204
Deferred tax liabilities, long-term	283	283
Total liabilities	48,603	54,614
Commitments and contingencies (See Note 8)
Stockholders' equity
Common stock, $.001 par value; 160,000,000 authorized; 44,016,335 and 18,914,616 shares issued, 42,260,623 and 17,158,904 shares outstanding at March 31, 2012 and December 31, 2011, respectively	42	17
Preferred stock, $.001 par value; 0 and 290,277 authorized Series A-3 convertible preferred stock issued and outstanding at March 31, 2012 and December 31, 2011, respectively
Additional paid-in capital	157,232	40,020
Retained earnings	86,607	74,508
Treasury stock	(15,972)	(15,972)
Accumulated other comprehensive loss	(1,902)	(3,514)
Total stockholders' equity	226,007	95,059
Total liabilities and stockholders' equity	274,610	235,613
Convertible Redeemable Preferred Stock
Current liabilities
Preferred stock, $.001 par value; 0 and 5,000,000 authorized at March 31, 2012 and December 31, 2011; 0 and 2,054,935 Series A-1 convertible redeemable preferred stock issued and outstanding at March 31, 2012 and December 31, 2011; $.001 par value 0 and 945,114 authorized at March 31, 2012 and December 31, 2011, 0 and 384,804 Series A-2 convertible redeemable preferred stock issued and outstanding at March 31, 2012 and December 31, 2011		$ 85,940