| Payment for Acquisition, Loan, Held-for-Investment | $710.0M | $844.0M | $877.0M | $805.0M | $944.0M | $996.0M | $1.3B | $1.3B |
| Repayments and sales of loans | $594.0M | $628.0M | $775.0M | $637.0M | $767.0M | $849.0M | $1.2B | $1.0B |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent | $170.0M | $832.0M | $1.3B | -$678.0M | $917.0M | $258.0M | $745.0M | -$586.0M |
| Other Comprehensive Income (Loss) | $170.0M | $832.0M | $1.3B | -$678.0M | $917.0M | $258.0M | $745.0M | -$586.0M |
| Cash Provided by (Used in) Financing Activity, Including Discontinued Operation | $3.0M | $6.0M | $49.0M | $59.0M | $44.0M | $24.0M | -$938.0M | -$485.0M |
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | $340.0M | $423.0M | $615.0M | $367.0M | $428.0M | $513.0M | $725.0M | $481.0M |
| Cash Provided by (Used in) Investing Activity, Including Discontinued Operation | -$424.0M | -$474.0M | -$661.0M | -$619.0M | -$252.0M | $335.0M | -$654.0M | $310.0M |
| Income Taxes Paid, Net | $40.0M | $14.0M | $53.0M | $27.0M | $61.0M | $23.0M | $83.0M | $93.0M |
| Income Taxes Paid, Net | $40.0M | $14.0M | $53.0M | $27.0M | $61.0M | $23.0M | $83.0M | $93.0M |
| Increase (Decrease) in Other Operating Assets and Liabilities, Net | $72.0M | $46.0M | — | $6.0M | $35.0M | $70.0M | — | $70.0M |
| Net additions (releases) charged to costs and expenses | $26.0M | $42.0M | $52.0M | $43.0M | $44.0M | $102.0M | $41.0M | $48.0M |
| Revenue Related To Non-Cash Consideration | $21.0M | $19.0M | $19.0M | $13.0M | $12.0M | $12.0M | $12.0M | $12.0M |
| Gain (Loss), Foreign Currency Transaction, before Tax | $2.0M | $16.0M | -$22.0M | $6.0M | $24.0M | -$4.0M | $0.0 | -$9.0M |
| OCI - Cash Flow Hedge After Reclassification (Pre-Tax) | -$1.0M | $4.0M | -$14.0M | $5.0M | $16.0M | -$9.0M | $3.0M | -$7.0M |
| Unrealized Gain (Loss) on Hedging Activities | -$1.0M | $4.0M | -$14.0M | $5.0M | $16.0M | -$9.0M | $3.0M | -$7.0M |
| Cash received from option exercises | $3.0M | $6.0M | $49.0M | $59.0M | $44.0M | $24.0M | $105.0M | $6.0M |
| Capital Expenditures | $7.0M | $2.0M | $4.0M | $4.0M | $6.0M | $6.0M | $10.0M | $5.0M |
| Payments to Acquire Property, Plant, and Equipment | $7.0M | $2.0M | $4.0M | $4.0M | $6.0M | $6.0M | $10.0M | $5.0M |
| OCI - Cash Flow Hedge After Reclassification Tax | $0.0 | $0.0 | -$5.0M | $1.0M | $5.0M | -$3.0M | $1.0M | -$2.0M |
| Payment for (Proceeds from) Other Investing Activity | -$2.0M | -$1.0M | — | $0.0 | -$2.0M | $0.0 | -$56.0M | -$2.0M |
| OCI Cash Flow Hedge Gain (Loss), After Tax, Parent | $0.0 | $0.0 | -$5.0M | $1.0M | $5.0M | -$3.0M | $1.0M | -$2.0M |
| Payments To Acquire Equity And Other Investments | $106.0M | $4.0M | $26.0M | $4.0M | $71.0M | $8.0M | $16.0M | $1.0M |
| Change in Deferred Revenue | $6.5M | $6.5M | $6.5M | $4.8M | $4.8M | $4.8M | $4.8M | — |
| Interest Paid, Net | $250.0K | $250.0K | $250.0K | $250.0K | $250.0K | $250.0K | $250.0K | — |
| Advertising costs | $136.5M | $136.5M | $136.5M | $188.3M | $188.3M | $188.3M | $188.3M | — |
| Federal | $3.5M | $3.5M | $3.5M | $8.8M | $8.8M | $8.8M | $8.8M | — |
| Foreign | $24.8M | $24.8M | $24.8M | $48.3M | $48.3M | $48.3M | $48.3M | — |
| Federal | $10.3M | $10.3M | $10.3M | -$250.0K | -$250.0K | -$250.0K | -$250.0K | — |
| Deferred taxes | $19.5M | $19.5M | $19.5M | -$3.5M | -$3.5M | -$3.5M | -$3.5M | — |
| State | $7.8M | $7.8M | $7.8M | -$4.3M | -$4.3M | -$4.3M | -$4.3M | — |
| Depreciation | $5.5M | $5.5M | $5.5M | $4.5M | $4.5M | $4.5M | $4.5M | — |
| Impairment on sales of Shopify's logistics businesses | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | — |
| Effective tax rates | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | — |
| Income taxes at U.S. statutory rate of 21% | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | — |
| Effective Income Tax Rate Reconciliation, Cross-Border, Domestic Taxes On Foreign Earnings, Amount | $15.0M | $15.0M | $15.0M | $16.5M | $16.5M | $16.5M | $16.5M | — |
| Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount | $3.3M | $3.3M | $3.3M | $0.0 | $0.0 | $0.0 | $0.0 | — |
| Other | — | — | 0.6% | — | — | — | 0.0% | — |
| Domestic taxes on unrealized investment gains | — | — | 2.8% | — | — | — | -3.0% | — |
| Effective Income Tax Rate Reconciliation, Cross-Border, Unrealized Investment Gains, Amount | $15.5M | $15.5M | $15.5M | -$11.5M | -$11.5M | -$11.5M | -$11.5M | — |
| Domestic taxes on foreign earnings | — | — | 2.7% | — | — | — | 4.4% | — |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Unrealized Gain On Equity And Other Investments, Percent | — | — | -1.3% | — | — | — | -2.3% | — |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Loss On Derivative, Amount | $0.0 | $0.0 | $0.0 | $4.8M | $4.8M | $4.8M | $4.8M | — |
| Other | $0.0 | $0.0 | $0.0 | -$0.0 | -$0.0 | -$0.0 | -$0.0 | — |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Loss On Derivative, Percent | — | — | 0.0% | — | — | — | 1.3% | — |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Unrealized Gain On Equity And Other Investments, Amount | -$7.3M | -$7.3M | -$7.3M | -$8.5M | -$8.5M | -$8.5M | -$8.5M | — |
| Goodwill impairment losses | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | — |
| Impairment charge on leasehold improvements | — | — | — | $1.3M | $1.3M | $1.3M | $1.3M | — |
| Federal taxes | $1.0M | $1.0M | $1.0M | $250.0K | $250.0K | $250.0K | $250.0K | — |
| State taxes | $500.0K | $500.0K | $500.0K | $10.8M | $10.8M | $10.8M | $10.8M | — |
| Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | $83.5M | $83.5M | $83.5M | $56.5M | $56.5M | $56.5M | $56.5M | — |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount | $750.0K | $750.0K | $750.0K | -$250.0K | -$250.0K | -$250.0K | -$250.0K | — |
| Increase (Decrease) in Accounts and Other Receivables | $37.0M | $37.0M | $37.0M | $54.8M | $54.8M | $54.8M | $54.8M | — |
| Accounts payable and other current liabilities | $27.5M | $27.5M | $27.5M | $65.5M | $65.5M | $65.5M | $65.5M | — |
| Increase (decrease) in contract liabilities and current deferred income | $6.5M | $6.5M | $6.5M | $4.8M | $4.8M | $4.8M | $4.8M | — |
| Increase (Decrease) in Finance Receivables | $20.5M | $20.5M | $20.5M | $35.3M | $35.3M | $35.3M | $35.3M | — |
| Increase (Decrease) in Other Operating Assets | $18.0M | $18.0M | $18.0M | $9.5M | $9.5M | $9.5M | $9.5M | — |
| Interest Paid, Excluding Capitalized Interest, Operating Activity | $250.0K | $250.0K | $250.0K | $250.0K | $250.0K | $250.0K | $250.0K | — |
| Loss Contingency Accrual, Period Increase (Decrease) | -$13.8M | -$13.8M | -$13.8M | — | — | — | — | — |
| Infringed web technology patents, number | $0.8 | $0.8 | $0.8 | — | — | — | — | — |
| Operating Lease Payments | $8.8M | $8.8M | $8.8M | $8.5M | $8.5M | $8.5M | $8.5M | — |
| Payments to Acquire Businesses, Net of Cash Acquired | $26.0M | $4.0M | $0.0 | $56.0M | $0.0 | $0.0 | $0.0 | $0.0 |
| Maturities of convertible senior notes | $0.0 | $0.0 | $0.0 | -$260.8M | -$260.8M | -$260.8M | -$260.8M | — |
| Right Of Use Asset Obtained In Exchange For Operating Lease Liability | $1.8M | $1.8M | $1.8M | $250.0K | $250.0K | $250.0K | $250.0K | — |
| Intrinsic value of stock options exercised | $152.3M | $152.3M | $152.3M | $239.0M | $239.0M | $239.0M | $239.0M | — |
| Additions for tax positions of prior years | $0.0 | $0.0 | $0.0 | $1.3M | $1.3M | $1.3M | $1.3M | — |
