National Storage Affiliates Trust Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- DOCUMENT AND ENTITY INFORMATION
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

SELF STORAGE PROPERTY ACQUISITIONS AND DISPOSITIONS - Pro Forma Information (Details)

v3.8.0.1

SELF STORAGE PROPERTY ACQUISITIONS AND DISPOSITIONS - Pro Forma Information (Details) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2017 USD ($) property	Jun. 30, 2017 property	Mar. 31, 2017 property	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) property	Sep. 30, 2016 USD ($)	Dec. 31, 2016 property
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Number of self storage properties acquired	19	10	5		34
Acquisition costs \| $	$ 139			$ 1,737	$ 450	$ 4,733
Credit Facility [Member] \| Line of Credit [Member] \| Revolving line of credit [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Effective interest rate (percent)	2.63%			1.93%	2.63%	1.93%
All 2016 Acquisitions [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Number of self storage properties acquired							107
Number of businesses acquired for which pro forma financial information is available							100
Number of businesses acquired for which pro forma financial information is not available							7
Pro forma revenue \| $				$ 6,200		$ 31,700
Pro forma net income (loss) \| $				$ 1,700		$ 6,600

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