CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 3,148,651	$ 1,289,994
Restricted cash	843	10,476
Short-term investments	1,142,182	5,462,720
Accounts receivable, net of allowance for doubtful accounts of $14,212 and $14,116, respectively	643,894	535,962
Prepaid expenses and other current assets	178,050	107,102
Deferred income taxes	153,754	74,687
Total current assets	5,267,374	7,480,941
Property and equipment, net	198,953	135,053
Intangible assets, net	2,334,761	1,019,985
Goodwill	3,326,474	1,767,912
Long-term investments	3,755,653	0
Other assets	57,348	40,569
Total assets	14,940,563	10,444,460
Current liabilities:
Accounts payable	281,480	247,345
Accrued expenses and other current liabilities	600,758	545,342
Deferred merchant bookings	460,558	437,127
Convertible debt	37,195	151,931
Total current liabilities	1,379,991	1,381,745
Deferred income taxes	1,040,260	326,425
Other long-term liabilities	103,533	75,981
Long-term debt	3,849,756	1,742,047
Total liabilities	6,373,540	3,526,198
Commitments and Contingencies (See Note 16)
Convertible debt	329	8,533
Stockholders' equity:
Common stock, $0.008 par value, authorized 1,000,000,000 shares, 61,821,097 and 61,265,160 shares issued, respectively	480	476
Treasury stock, 9,888,024 and 9,256,721, respectively	(2,737,585)	(1,987,207)
Additional paid-in capital	4,923,196	4,592,979
Accumulated earnings	6,640,505	4,218,752
Accumulated other comprehensive income (loss)	(259,902)	84,729
Total stockholders' equity	8,566,694	6,909,729
Total liabilities and stockholders' equity	$ 14,940,563	$ 10,444,460