Fair Value Measurements and Financial Instruments - Schedule of Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Government bonds
Assets
Marketable securities	$ 19,480	$ 863
Government bonds \| Other assets, noncurrent
Assets
Marketable securities	0	0
Corporate debt securities
Assets
Marketable securities	766,036	914,791
Corporate debt securities \| Other assets, noncurrent
Assets
Marketable securities	10,412	10,451
Mortgage-backed and asset-backed securities
Assets
Marketable securities	21,484	34,036
Mortgage-backed and asset-backed securities \| Other assets, noncurrent
Assets
Marketable securities	0	0
Certificates of deposit
Assets
Cash and cash equivalents	599,030	395,351
Certificates of deposit \| Other assets, noncurrent
Assets
Cash and cash equivalents	0	0
Fair value, recurring
Assets
Cash and cash equivalents	2,994,832	2,159,699
Marketable securities	2,088,242	2,255,038
Total assets at fair value	5,657,323	4,917,425
Liabilities
Total liabilities at fair value	10,074	10,280
Fair value, recurring \| Foreign exchange
Liabilities
Derivative liabilities	10,074	10,280
Fair value, recurring \| Prepaids and other current assets \| Foreign exchange
Assets
Other assets	63,996	25,918
Fair value, recurring \| Other assets, noncurrent \| Warrant assets
Assets
Other assets	3,063
Fair value, recurring \| Certificates of deposit
Assets
Marketable securities	592,105	364,234
Fair value, recurring \| Government bonds
Assets
Marketable securities	19,480	863
Fair value, recurring \| Commercial paper
Assets
Marketable securities	709,938	993,004
Fair value, recurring \| Corporate debt securities
Assets
Marketable securities	745,235	862,901
Fair value, recurring \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	10,412	10,451
Fair value, recurring \| Mortgage-backed and asset-backed securities
Assets
Marketable securities	21,484	34,036
Fair value, recurring \| Money market funds
Assets
Cash and cash equivalents	2,699,936	1,923,184
Funds receivable and amounts held on behalf of customers	496,778	466,319
Fair value, recurring \| Certificates of deposit
Assets
Cash and cash equivalents	6,925	31,117
Fair value, recurring \| Commercial paper
Assets
Cash and cash equivalents	277,582	163,959
Fair value, recurring \| Corporate debt securities
Assets
Cash and cash equivalents	10,389	41,439
Fair value, recurring \| Level 1
Assets
Cash and cash equivalents	2,706,861	1,954,301
Marketable securities	592,105	364,234
Total assets at fair value	3,795,744	2,784,854
Liabilities
Total liabilities at fair value	0	0
Fair value, recurring \| Level 1 \| Foreign exchange
Liabilities
Derivative liabilities	0	0
Fair value, recurring \| Level 1 \| Prepaids and other current assets \| Foreign exchange
Assets
Other assets	0	0
Fair value, recurring \| Level 1 \| Other assets, noncurrent \| Warrant assets
Assets
Other assets	0
Fair value, recurring \| Level 1 \| Certificates of deposit
Assets
Marketable securities	592,105	364,234
Fair value, recurring \| Level 1 \| Government bonds
Assets
Marketable securities	0	0
Fair value, recurring \| Level 1 \| Commercial paper
Assets
Marketable securities	0	0
Fair value, recurring \| Level 1 \| Corporate debt securities
Assets
Marketable securities	0	0
Fair value, recurring \| Level 1 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	0	0
Fair value, recurring \| Level 1 \| Mortgage-backed and asset-backed securities
Assets
Marketable securities	0	0
Fair value, recurring \| Level 1 \| Money market funds
Assets
Cash and cash equivalents	2,699,936	1,923,184
Funds receivable and amounts held on behalf of customers	496,778	466,319
Fair value, recurring \| Level 1 \| Certificates of deposit
Assets
Cash and cash equivalents	6,925	31,117
Fair value, recurring \| Level 1 \| Commercial paper
Assets
Cash and cash equivalents	0	0
Fair value, recurring \| Level 1 \| Corporate debt securities
Assets
Cash and cash equivalents	0	0
Fair value, recurring \| Level 2
Assets
Cash and cash equivalents	287,971	205,398
Marketable securities	1,496,137	1,890,804
Total assets at fair value	1,851,167	2,122,120
Liabilities
Total liabilities at fair value	10,074	10,280
Fair value, recurring \| Level 2 \| Foreign exchange
Liabilities
Derivative liabilities	10,074	10,280
Fair value, recurring \| Level 2 \| Prepaids and other current assets \| Foreign exchange
Assets
Other assets	63,996	25,918
Fair value, recurring \| Level 2 \| Other assets, noncurrent \| Warrant assets
Assets
Other assets	3,063
Fair value, recurring \| Level 2 \| Certificates of deposit
Assets
Marketable securities	0	0
Fair value, recurring \| Level 2 \| Government bonds
Assets
Marketable securities	19,480	863
Fair value, recurring \| Level 2 \| Commercial paper
Assets
Marketable securities	709,938	993,004
Fair value, recurring \| Level 2 \| Corporate debt securities
Assets
Marketable securities	745,235	862,901
Fair value, recurring \| Level 2 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	0	0
Fair value, recurring \| Level 2 \| Mortgage-backed and asset-backed securities
Assets
Marketable securities	21,484	34,036
Fair value, recurring \| Level 2 \| Money market funds
Assets
Cash and cash equivalents	0	0
Funds receivable and amounts held on behalf of customers	0	0
Fair value, recurring \| Level 2 \| Certificates of deposit
Assets
Cash and cash equivalents	0	0
Fair value, recurring \| Level 2 \| Commercial paper
Assets
Cash and cash equivalents	277,582	163,959
Fair value, recurring \| Level 2 \| Corporate debt securities
Assets
Cash and cash equivalents	10,389	41,439
Fair value, recurring \| Level 3
Assets
Cash and cash equivalents	0	0
Marketable securities	0	0
Total assets at fair value	10,412	10,451
Liabilities
Total liabilities at fair value	0	0
Fair value, recurring \| Level 3 \| Foreign exchange
Liabilities
Derivative liabilities	0	0
Fair value, recurring \| Level 3 \| Prepaids and other current assets \| Foreign exchange
Assets
Other assets	0	0
Fair value, recurring \| Level 3 \| Other assets, noncurrent \| Warrant assets
Assets
Other assets	0
Fair value, recurring \| Level 3 \| Certificates of deposit
Assets
Marketable securities	0	0
Fair value, recurring \| Level 3 \| Government bonds
Assets
Marketable securities	0	0
Fair value, recurring \| Level 3 \| Commercial paper
Assets
Marketable securities	0	0
Fair value, recurring \| Level 3 \| Corporate debt securities
Assets
Marketable securities	0	0
Fair value, recurring \| Level 3 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	10,412	10,451
Fair value, recurring \| Level 3 \| Mortgage-backed and asset-backed securities
Assets
Marketable securities	0	0
Fair value, recurring \| Level 3 \| Money market funds
Assets
Cash and cash equivalents	0	0
Funds receivable and amounts held on behalf of customers	0	0
Fair value, recurring \| Level 3 \| Certificates of deposit
Assets
Cash and cash equivalents	0	0
Fair value, recurring \| Level 3 \| Commercial paper
Assets
Cash and cash equivalents	0	0
Fair value, recurring \| Level 3 \| Corporate debt securities
Assets
Cash and cash equivalents	$ 0	$ 0

Funds Held For Clients, Fair Value Disclosure

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of financial and nonfinancial obligations.

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Fair value portion of other assets.

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