v3.26.3
REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of revenues from contracts with customers (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers $ 163,838 $ 215,253 $ 531,744 $ 600,646
Total revenues 33,028 277,871 624,205 689,236
Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 23,092 53,894 84,498 103,969
Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 27,331 34,300 86,128 102,733
Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 8,790 7,810 28,282 21,943
Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 52,901 58,292 166,881 180,098
Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 40,250 48,275 130,217 140,803
Total revenues 40,250 48,275 130,217 140,803
Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 11,474 12,682 35,738 51,100
Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues (124,401) 53,012 33,534 64,521
Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 1,215 1,299 12,005 (5,997)
Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 1,509 2,094 5,394 9,143
Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 2,004 2,523 4,887 5,487
Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues (11,137) 3,690 36,641 15,436
Operating Segments | Capital Markets        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 31,660 60,053 110,260 117,592
Total revenues (90,213) 108,732 135,610 172,124
Operating Segments | Capital Markets | Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 24,629 53,894 89,673 103,617
Operating Segments | Capital Markets | Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Capital Markets | Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 7,031 6,159 20,587 13,975
Operating Segments | Capital Markets | Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Capital Markets | Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Capital Markets | Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Capital Markets | Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues (125,707) 45,066 13,959 49,049
Operating Segments | Capital Markets | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 1,182 0 1,933 (3,131)
Operating Segments | Capital Markets | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 87 0 1,121 65
Operating Segments | Capital Markets | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 2,004 2,523 4,887 5,487
Operating Segments | Capital Markets | Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 561 1,090 3,450 3,062
Operating Segments | Wealth Management        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 28,159 32,463 90,711 105,260
Total revenues 24,327 42,403 134,455 128,302
Operating Segments | Wealth Management | Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Wealth Management | Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 26,497 30,881 83,154 97,483
Operating Segments | Wealth Management | Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 1,662 1,582 7,557 7,777
Operating Segments | Wealth Management | Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Wealth Management | Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Wealth Management | Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Wealth Management | Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 2,236 8,061 21,583 13,873
Operating Segments | Wealth Management | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Wealth Management | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Wealth Management | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Wealth Management | Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues (6,068) 1,879 22,161 9,169
Operating Segments | Lingo        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 36,185 39,690 115,763 121,150
Total revenues 36,185 39,690 115,763 121,150
Operating Segments | Lingo | Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Lingo | Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Lingo | Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Lingo | Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 36,185 39,690 115,763 121,150
Operating Segments | Lingo | Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Lingo | Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Lingo | Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Lingo | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Lingo | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Lingo | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Lingo | Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | magicJack        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 8,529 9,331 25,879 28,909
Total revenues 8,529 9,331 25,879 28,909
Operating Segments | magicJack | Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | magicJack | Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | magicJack | Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | magicJack | Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 7,746 8,499 23,500 26,264
Operating Segments | magicJack | Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 303 294 899 953
Operating Segments | magicJack | Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 480 538 1,480 1,692
Operating Segments | magicJack | Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | magicJack | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | magicJack | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | magicJack | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | magicJack | Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Marconi Wireless        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 7,132 8,128 22,037 26,847
Total revenues 7,132 8,128 22,037 26,847
Operating Segments | Marconi Wireless | Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Marconi Wireless | Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Marconi Wireless | Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Marconi Wireless | Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 6,664 7,419 20,568 24,025
Operating Segments | Marconi Wireless | Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 468 709 1,469 2,822
Operating Segments | Marconi Wireless | Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Marconi Wireless | Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Marconi Wireless | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Marconi Wireless | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Marconi Wireless | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Marconi Wireless | Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | UOL        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 2,790 3,217 8,492 10,137
Total revenues 2,790 3,217 8,492 10,137
Operating Segments | UOL | Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | UOL | Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | UOL | Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | UOL | Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 2,306 2,684 7,050 8,659
Operating Segments | UOL | Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | UOL | Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 484 533 1,442 1,478
Operating Segments | UOL | Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | UOL | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | UOL | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | UOL | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | UOL | Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Consumer Products        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 39,255 46,967 126,907 132,354
Total revenues 39,255 46,967 126,907 132,354
Operating Segments | Consumer Products | Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Consumer Products | Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Consumer Products | Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Consumer Products | Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Consumer Products | Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 39,255 46,967 126,907 132,354
Operating Segments | Consumer Products | Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Operating Segments | Consumer Products | Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Consumer Products | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Consumer Products | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Consumer Products | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Operating Segments | Consumer Products | Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Corporate and All Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 5,023 19,403 55,062 69,413
Corporate and All Other | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 33 1,299 10,072 (2,866)
Corporate and All Other | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 1,422 2,094 4,273 9,078
Corporate and All Other | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Corporate and All Other | Corporate and All Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 10,128 15,404 31,695 58,397
Total revenues 5,023 19,403 55,062 69,413
Corporate and All Other | Corporate and All Other | Corporate finance, consulting and investment banking fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers (1,537) 0 (5,175) 352
Corporate and All Other | Corporate and All Other | Wealth and asset management fees        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 834 3,419 2,974 5,250
Corporate and All Other | Corporate and All Other | Commissions, fees and reimbursed expenses        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 97 69 138 191
Corporate and All Other | Corporate and All Other | Subscription services        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 0 0 0 0
Corporate and All Other | Corporate and All Other | Sale of goods        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 224 305 942 4,674
Corporate and All Other | Corporate and All Other | Advertising and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues from contracts with customers 10,510 11,611 32,816 47,930
Corporate and All Other | Corporate and All Other | Trading (losses) gains, net        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues (930) (115) (2,008) 1,599
Corporate and All Other | Corporate and All Other | Fair value adjustments on loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 33 1,299 10,072 (2,866)
Corporate and All Other | Corporate and All Other | Interest income - loans        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 1,422 2,094 4,273 9,078
Corporate and All Other | Corporate and All Other | Interest income - securities lending        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues 0 0 0 0
Corporate and All Other | Corporate and All Other | Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Total revenues $ (5,630) $ 721 $ 11,030 $ 3,205