Business Description - Summary of Outstanding Equity and Economic Ownership Interest (Detail) - shares shares in Thousands |
Jun. 30, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Business Description [Line Items] | ||
| Shares of Common Stock | 26,858 | 26,001 |
| OP Units | 3,057 | 1,737 |
| Total Diluted Shares | 29,915 | 27,738 |
| Broadstone Net Lease, LLC | ||
| Business Description [Line Items] | ||
| Percent Ownership of OP, Shares of Common Stock | 89.80% | 93.70% |
| Percent Ownership of OP, OP Units | 10.20% | 6.30% |
| Percent Ownership of OP, Total Diluted Shares | 100.00% | 100.00% |
| Permanent Equity | ||
| Business Description [Line Items] | ||
| Shares of Common Stock | 26,077 | 26,001 |
| OP Units | 1,737 | 1,737 |
| Total Diluted Shares | 27,814 | 27,738 |
| Mezzanine Equity | ||
| Business Description [Line Items] | ||
| Shares of Common Stock | 781 | 0 |
| OP Units | 1,320 | 0 |
| Total Diluted Shares | 2,101 | 0 |