CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (207,363,000)	$ 39,008,000
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	70,056,000	29,201,000
Non-cash interest and other	(64,351,000)	5,207,000
Non-cash lease expense	22,696,000	20,432,000
Share-based compensation	275,423,000	118,623,000
Loss (gain) on revaluation of equity investments	(49,741,000)	28,900,000
Transaction, loan, and consumer receivable losses	91,150,000	20,395,000
Bitcoin impairment losses	0	19,860,000
Change in deferred income taxes	(7,653,000)	(60,000)
Changes in operating assets and liabilities:
Settlements receivable	(220,361,000)	(114,458,000)
Purchases and originations of loans	(951,665,000)	(812,492,000)
Proceeds from payments and forgiveness of loans	1,112,266,000	531,716,000
Customers payable	136,474,000	80,310,000
Settlements payable	10,360,000	24,564,000
Other assets and liabilities	12,132,000	(20,399,000)
Net cash provided by (used in) operating activities	229,423,000	(29,193,000)
Cash flows from investing activities:
Purchase of marketable debt securities	(209,981,000)	(401,161,000)
Proceeds from maturities of marketable debt securities	262,559,000	139,353,000
Proceeds from sale of marketable debt securities	178,352,000	249,342,000
Purchase of marketable debt securities from customer funds	0	(119,411,000)
Proceeds from maturities of marketable debt securities from customer funds	73,000,000	187,500,000
Proceeds from sale of marketable debt securities from customer funds	316,576,000	0
Originations of consumer receivables	(1,946,468,000)	0
Principal repayments of consumer receivables	1,943,554,000	0
Purchase of property and equipment	(41,187,000)	(34,149,000)
Purchase of bitcoin investments	0	(170,000,000)
Purchase of other investments	(16,495,000)	(28,470,000)
Proceeds from sale of equity investments	0	18,973,000
Net cash acquired through business combination	570,703,000	0
Net cash provided by (used in) investing activities	1,130,613,000	(158,023,000)
Cash flows from financing activities:
Proceeds from PPP Liquidity Facility advances	0	494,300,000
Repayments of PPP Liquidity Facility advances	(372,897,000)	(194,186,000)
Payments to redeem convertible notes	(1,071,788,000)	0
Proceeds from warehouse facilities borrowings	183,440,000	0
Repayments of warehouse facilities borrowings	(90,491,000)	0
Proceeds from the exercise of stock options and purchases under the employee stock purchase plan	4,093,000	32,891,000
Payments for tax withholding related to vesting of restricted stock units	(2,456,000)	(152,013,000)
Net increase in non-interest bearing deposits	21,633,000	0
Change in customer funds, restricted from use in the Company's operations	359,910,000	938,596,000
Net cash provided by (used in) financing activities	(968,556,000)	1,119,588,000
Effect of foreign exchange rate on cash and cash equivalents	(948,000)	(8,206,000)
Net increase in cash, cash equivalents, restricted cash, and customer funds	390,532,000	924,166,000
Cash, cash equivalents, restricted cash, and customer funds, beginning of period	6,975,090,000	4,793,171,000
Cash, cash equivalents, restricted cash, and customer funds, end of period	7,365,622,000	5,717,337,000
Reconciliation of cash, cash equivalents, restricted cash, and customer funds:
Cash and cash equivalents	3,993,565,000	3,022,485,000
Short-term restricted cash	109,450,000	32,891,000
Long-term restricted cash	71,702,000	63,509,000
Customer funds cash and cash equivalents	3,190,905,000	2,598,452,000
Total	$ 7,365,622,000	$ 5,717,337,000