v3.19.3.a.u2

Business Description - Summary of Economic Ownership Interest (Detail) - Broadstone Net Lease, LLC | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
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Business Description [Line Items] |  |  |
Percentage of shares owned by, Corporation | 93.70% | 92.70% | 92.40%
Percentage of shares owned by, non-controlling interest | 6.30% | 7.30% | 7.60%
Equity Method Investment, Ownership Percentage | 100.00% | 100.00% | 100.00%

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