CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Net income	$ 176,403	$ 735,634
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property and equipment, including internal-use software and website development	344,833	240,878
Amortization of stock-based compensation	197,602	134,036
Amortization of intangible assets	251,260	83,322
Deferred income taxes	(66,050)	(42,628)
Foreign exchange (gain) loss on cash, cash equivalents and short-term investments, net	(16,508)	75,289
Realized (gain) loss on foreign currency forwards	34,515	(39,975)
Gain on sale of business	0	(508,810)
Noncontrolling interest basis adjustment	0	(77,400)
Other	(7,015)	15,237
Changes in operating assets and liabilities, net of effects from acquisitions and disposals:
Accounts receivable	(297,258)	(381,618)
Prepaid expenses and other assets	(51,995)	27,183
Accounts payable, merchant	158,453	202,883
Accounts payable, other, accrued expenses and other current liabilities	91,221	233,350
Tax payable/receivable, net	(57,521)	64,897
Deferred merchant bookings	722,768	772,787
Deferred revenue	62,970	6,461
Net cash provided by operating activities	1,543,678	1,541,526
Investing activities:
Capital expenditures, including internal-use software and website development	(567,044)	(625,439)
Purchases of investments	(20,446)	(512,329)
Sales and maturities of investments	31,637	392,271
Net settlement of foreign currency forwards	(34,515)	39,975
Acquisitions, net of cash acquired	(777)	(1,933,821)
Proceeds from sale of business, net of cash divested and disposal costs	0	523,882
Other, net	2,222	11,665
Net cash used in investing activities	(588,923)	(2,103,796)
Financing activities:
Payment of HomeAway Convertible Notes	(401,424)	0
Proceeds from issuance of long-term debt, net of issuance costs	(1,792)	700,454
Purchases of treasury stock	(366,723)	(48,694)
Proceeds from issuance of treasury stock	0	22,575
Payment of dividends to stockholders	(111,009)	(77,173)
Proceeds from exercise of equity awards and employee stock purchase plan	103,760	83,298
Excess tax benefit on equity awards	0	85,463
Withholding taxes for stock option exercises	(1,282)	(85,033)
Other, net	(36,827)	43,918
Net cash provided by (used in) financing activities	(815,297)	724,808
Effect of exchange rate changes on cash and cash equivalents	28,718	(109,899)
Net increase in cash and cash equivalents	168,176	52,639
Cash and cash equivalents at beginning of period	1,676,299	1,402,700
Cash and cash equivalents at end of period	1,844,475	1,455,339
Supplemental cash flow information
Cash paid for interest	152,008	106,444
Income tax payments, net	$ 103,901	$ 87,708