v3.22.2.2

Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Offering costs,discounts, and commissions	$ 3,654	$ 11,194

X

- Definition

Offering costs discounts and commissions.

+ References

No definition available.

+ Details

Name:	bnl_OfferingCostsDiscountsAndCommissions
Namespace Prefix:	bnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration