v3.26.1
FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Customer funds $ 5,530,278   $ 4,771,824      
Bitcoin investment 533,866 $ 617,290 777,515 $ 931,656 $ 708,450 $ 792,282
Level 1            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Bitcoin investment 533,866   777,515      
Investment in marketable equity securities 0   5,225      
Total 2,677,753   3,243,215      
Level 1 | Money market funds            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 350,598   608,807      
Restricted cash 278,590   293,514      
Level 1 | U.S. government securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   4,963      
Short-term debt securities 184,244   344,627      
Long-term debt securities 143,387   100,467      
Level 1 | Commercial paper            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   0      
Level 1 | Corporate bonds            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   0      
Short-term debt securities 0   0      
Long-term debt securities 0   0      
Level 1 | Reverse repurchase agreement            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Customer funds 1,187,068   1,108,097      
Level 1 | U.S. agency securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   0      
Long-term debt securities 0   0      
Level 1 | Certificates of deposit            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   0      
Level 1 | Commercial paper            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   0      
Level 1 | Municipal securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   0      
Long-term debt securities 0   0      
Level 2            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Bitcoin investment 0   0      
Investment in marketable equity securities 0   0      
Total 209,147   326,651      
Level 2 | Money market funds            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   0      
Restricted cash 0   0      
Level 2 | U.S. government securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   0      
Short-term debt securities 0   0      
Long-term debt securities 0   0      
Level 2 | Commercial paper            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   64,805      
Level 2 | Corporate bonds            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 492   276      
Short-term debt securities 93,016   59,119      
Long-term debt securities 71,557   81,469      
Level 2 | Reverse repurchase agreement            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Customer funds 0   0      
Level 2 | U.S. agency securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 14,004   19,035      
Long-term debt securities 994   0      
Level 2 | Certificates of deposit            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 2,072   2,211      
Level 2 | Commercial paper            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 17,509   92,655      
Level 2 | Municipal securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   130      
Long-term debt securities 9,503   6,951      
Level 3            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Bitcoin investment 0   0      
Investment in marketable equity securities 0   0      
Total 0   0      
Level 3 | Money market funds            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   0      
Restricted cash 0   0      
Level 3 | U.S. government securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   0      
Short-term debt securities 0   0      
Long-term debt securities 0   0      
Level 3 | Commercial paper            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   0      
Level 3 | Corporate bonds            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Cash equivalents 0   0      
Short-term debt securities 0   0      
Long-term debt securities 0   0      
Level 3 | Reverse repurchase agreement            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Customer funds 0   0      
Level 3 | U.S. agency securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   0      
Long-term debt securities 0   0      
Level 3 | Certificates of deposit            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   0      
Level 3 | Commercial paper            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   0      
Level 3 | Municipal securities            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Short-term debt securities 0   0      
Long-term debt securities $ 0   $ 0