CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 255,953	$ 156,027
Short-term investments	0	37
Accounts receivable, less allowance for doubtful accounts of approximately $2,935 and $3,397 as of December 31, 2012 and 2013, respectively	20,761	16,392
Deferred income taxes, net	22,506	9,256
Income tax receivable	0	5,357
Prepaid expenses and other current assets	6,597	9,560
Debt issuance costs, net	2,649	2,934
Total current assets	308,466	199,563
Long-term investments	21,990	21,662
Property and equipment, net	57,719	46,308
Goodwill	718,587	718,078
Intangibles and other assets, net	144,472	170,632
Deposits and other assets	1,855	2,274
Debt issuance costs, net	3,893	6,622
Total assets	1,256,982	1,165,139
Current liabilities:
Current portion of long-term debt	24,063	17,500
Accounts payable	4,939	6,234
Accrued wages and commissions	20,104	23,831
Accrued expenses	23,200	19,002
Deferred gain on the sale of building	2,523	2,523
Income taxes payable	2,362	0
Deferred revenue	34,362	32,548
Total current liabilities	111,553	101,638
Long-term debt, less current portion	129,062	153,125
Deferred gain on the sale of building	26,286	28,809
Deferred rent	22,828	17,305
Deferred income taxes, net	34,582	34,071
Income taxes payable	4,809	2,818
Other long-term liabilities	0	1,030
Total liabilities	329,120	338,796
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.01 par value; 2,000 shares authorized; none outstanding	0	0
Common stock, $0.01 par value; 60,000 shares authorized; 28,348 and 28,848 issued and outstanding as of December 31, 2012 and 2013, respectively	288	283
Additional paid-in capital	863,780	792,988
Accumulated other comprehensive loss	(5,530)	(6,518)
Retained earnings	69,324	39,590
Total stockholders’ equity	927,862	826,343
Total liabilities and stockholders’ equity	$ 1,256,982	$ 1,165,139