Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 408,284	$ 285,512
Restricted cash—current portion	3,004	8,733
Accounts receivable, net	96,814	114,778
Deferred tax assets—current portion	36,660	32,063
Prepaid expenses and other current assets	26,723	24,584
Total current assets	571,485	465,670
Non-Current Assets:
Restricted cash—long-term portion	410	652
Property and equipment, net	52,655	52,541
Goodwill	231,377	231,377
Other intangibles, net	108,185	141,882
Deferred tax assets—long-term portion	244,072	258,271
Other non-current assets	18,911	20,565
Total non-current assets	655,610	705,288
Total Assets	1,227,095	1,170,958
Current Liabilities:
Accounts payable	8,342	7,740
Accrued expenses and other liabilities	80,760	73,111
Deferred revenue—current portion	116,372	108,217
Total current liabilities	205,474	189,068
Non-Current Liabilities:
Long-term debt	273,626	273,210
Accrued exit and disposal obligations	2,773	3,926
Liability for uncertain tax positions	3,194	4,098
Deferred revenue—long-term portion	5,252	8,115
Other non-current liabilities	5,247	1,368
Total non-current liabilities	290,092	290,717
Total Liabilities	495,566	479,785
Stockholders’ Equity:
Common stock	453	449
Additional paid-in capital	582,704	571,593
Retained earnings	180,906	154,551
Accumulated other comprehensive gain (loss)	3,702	(2,454)
Treasury stock	(36,236)	(32,966)
Total stockholders’ equity	731,529	691,173
Total liabilities and stockholders’ equity	$ 1,227,095	$ 1,170,958