Business Description - Summary of Outstanding Equity and Economic Ownership Interest (Detail) - shares shares in Thousands	Mar. 31, 2023	Dec. 31, 2022
Broadstone Net Lease, LLC
Business Description [Line Items]
Percent ownership of OP, Shares of Common Stock	95.30%	94.80%
Percent ownership of OP, OP Units	4.70%	5.20%
Percent ownership of OP, Total Diluted Shares	100.00%	100.00%
Ownership Interest
Business Description [Line Items]
Shares of Common Stock	187,203	186,114
OP Units	9,309	10,205
Total Diluted Shares	196,512	196,319