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Organization and Description of Business (Details) ft² in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 ft² state building | Dec. 31, 2021
Real Estate Properties [Line Items] |  |
Number of properties | building | 551 |
Number of states in which the entity owned buildings | state | 40 |
Area (in square feet) | ft² | 110.1 |
STAG Industrial, Inc. [Member] |  |
Real Estate Properties [Line Items] |  |
Ownership interest in Operating Partnership (as a percent) | 97.90% | 98.10%

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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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