CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income	$ 175,418	$ 97,106
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	156,183	135,457
Stock-based compensation	93,260	61,883
(Benefit) provision for deferred income taxes	(10,467)	4,925
Amortization of debt issuance costs	1,682	1,098
Gain on investments	0	(174)
Other non-cash reconciling items, net	2,062	21,602
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(736)	(25,251)
Prepaid expenses and other current assets	(26,016)	(26,009)
Accounts payable and accrued expenses	(66,949)	(97,263)
Deferred revenue	34,316	36,449
Other current liabilities	356	25,834
Other non-current assets and liabilities	(7,231)	(2,158)
Net cash provided by operating activities	351,878	233,499
Cash flows from investing activities:
Cash paid for business acquisition, net of cash acquired	0	(20,070)
Purchases of property and equipment	(93,751)	(141,700)
Capitalization of internal-use software development costs	(80,003)	(80,545)
Purchases of short- and long-term marketable securities	(170,019)	(134,191)
Proceeds from sales of short- and long-term marketable securities	15,144	185,249
Proceeds from maturities and redemptions of short- and long-term marketable securities	167,111	91,637
Other, net	9,935	(20,268)
Net cash used in investing activities	(151,583)	(119,888)
Cash flows from financing activities:
Proceeds related to the issuance of common stock under stock plans	20,310	21,257
Employee taxes paid related to net share settlement of stock awards	(109,333)	(29,894)
Repurchases of common stock	(125,449)	(348,600)
Other, net	(1,509)	(52)
Net cash used in financing activities	(215,981)	(357,289)
Effects of exchange rate changes on cash, cash equivalents and restricted cash	(4,013)	2,297
Net decrease in cash, cash equivalents and restricted cash	(19,699)	(241,381)
Cash, cash equivalents and restricted cash at beginning of period	490,470	543,022
Cash, cash equivalents and restricted cash at end of period	470,771	301,641
Supplemental disclosures of cash flow information:
Cash paid for income taxes, net of refunds received of $525 and $225 for the three months ended March 31, 2024 and 2023, respectively	74,940	86,066
Cash paid for interest expense	9,153	2,156
Cash paid for operating lease liabilities	64,795	55,167
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	100,167	102,952
Purchases of property and equipment and capitalization of internal-use software development costs included in accounts payable and accrued expenses	43,065	101,196
Capitalization of stock-based compensation	26,596	14,611
Reconciliation of cash and cash equivalents, and restricted cash:
Cash and cash equivalents	467,717	298,800
Restricted cash	3,054	2,841
Cash, cash equivalents and restricted cash	$ 470,771	$ 301,641