Shareholder Report, Average Annual Return (Details) 194408_Horizon Kinetics SPAC Active ETF_TF_TSR Annual {TF} |
12 Months Ended | 35 Months Ended |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Horizon Kinetics SPAC Active ETF | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Horizon Kinetics SPAC Active ETF NAV | |
| Average Annual Return, Percent | 8.85% | 6.08% |
| S&P 500 TR [Member] | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | S&P 500 TR | |
| Average Annual Return, Percent | 17.88% | 21.17% |
| ICE BofA 6-Month US Treasury Bill Total Return Index [Member] | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | ICE BofA 6-Month US Treasury Bill Total Return Index | |
| Average Annual Return, Percent | 4.28% | 4.94% |