CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 611,249	$ 358,967
Restricted cash	1,079	1,050
Short-term investments	1,338,169	1,303,251
Accounts receivable, net of allowance for doubtful accounts of $5,788 and $6,353, respectively	321,358	162,426
Prepaid expenses and other current assets	52,721	61,211
Deferred income taxes	51,859	70,559
Total current assets	2,376,435	1,957,464
Property and equipment, net	49,346	39,739
Intangible assets, net	228,885	232,030
Goodwill	529,594	510,894
Deferred income taxes	158,658	151,408
Other assets	17,157	14,418
Total assets	3,360,075	2,905,953
Current liabilities:
Accounts payable	127,794	90,311
Accrued expenses and other current liabilities	267,888	243,767
Deferred merchant bookings	243,733	136,915
Convertible debt (see Note 8)	486,778	175
Total current liabilities	1,126,193	471,168
Deferred income taxes	54,679	56,440
Other long-term liabilities	33,858	42,990
Convertible debt (see Note 8)		476,230
Total liabilities	1,214,730	1,046,828
Redeemable noncontrolling interests (see Note 11)	67,496	45,751
Convertible debt (see Note 8)	88,222	38
Stockholders' equity:
Common stock, $0.008 par value; authorized 1,000,000,000 shares, 57,540,672 and 56,567,236 shares issued, respectively	446	438
Treasury stock, 7,770,795 and 7,421,128 shares, respectively	(799,106)	(640,415)
Additional paid-in capital	2,372,283	2,417,092
Accumulated earnings	396,528	69,110
Accumulated other comprehensive income (loss)	19,476	(32,889)
Total stockholders' equity	1,989,627	1,813,336
Total liabilities and stockholders' equity	$ 3,360,075	$ 2,905,953