Condensed Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Current assets:    
Cash and cash equivalents $ 216,954 $ 154,568
Short-term marketable securities 87,279 183,074
Accounts receivable, net 83,108 83,514
Deferred tax assets, net 8,816 18,553
Prepaid expenses and other current assets 14,153 12,851
Total current assets 410,310 452,560
Long-term marketable securities 143,248 131,378
Property and equipment, net 35,907 37,227
Intangible assets, net 444,075 463,348
Goodwill 1,343,706 1,343,652
Other long-term assets 23,500 17,225
Total assets 2,400,746 2,445,390
Current liabilities:    
Accounts payable and accrued expenses 80,953 83,208
Deferred revenue 17,131 18,399
Current portion of long-term debt 13,250 302,375
Total current liabilities 111,334 403,982
Taxes payable, less current portion 9,208 10,100
Deferred revenue, less current portion 17,551 15,722
Long-term debt, less current portion 1,088,645 804,557
Long-term deferred tax liabilities, net 74,103 80,751
Other long-term liabilities 32,427 24,014
Total liabilities 1,333,268 1,339,126
Commitments and contingencies      
Stockholders' equity:    
Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued or outstanding 0 0
Common stock, $0.001 par value, 250,000 shares authorized; 130,955 shares issued and 88,764 outstanding as of March 31, 2015, and 130,627 shares issued and 91,729 outstanding as of December 31, 2014 131 131
Treasury stock, 42,191 shares and 38,898 shares at March 31, 2015 and December 31, 2014, respectively, at cost (1,083,216) (1,013,218)
Additional paid-in capital 2,386,207 2,339,817
Accumulated other comprehensive loss (5,015) (5,307)
Accumulated deficit (230,629) (215,159)
Total stockholders' equity 1,067,478 1,106,264
Total liabilities and stockholders' equity $ 2,400,746 $ 2,445,390