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

Quarterly report pursuant to Section 13 or 15(d)

DEBT FINANCING - Narrative (Details)

DEBT FINANCING - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Aug. 30, 2022	Jun. 24, 2022	Dec. 31, 2021	Nov. 09, 2021
Debt Instrument [Line Items]
Principal amount	$ 3,497,688			$ 2,948,944
Unsecured debt \| Fed Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	0.50%
Unsecured debt \| Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,550,000
Maximum borrowing capacity if expansion option is exercised	1,750,000
Unsecured debt \| Credit Facility \| Term loan A
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 125,000
Interest rate (percent)	3.69%
Principal amount	$ 125,000			125,000
Unsecured debt \| Credit Facility \| Term loan B
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 250,000
Interest rate (percent)	2.89%
Principal amount	$ 250,000			250,000
Unsecured debt \| Credit Facility \| Term loan C
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 225,000
Interest rate (percent)	2.86%
Principal amount	$ 225,000			225,000
Unsecured debt \| Credit Facility \| Term loan D
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 175,000
Interest rate (percent)	3.07%
Principal amount	$ 175,000			175,000
Unsecured debt \| Credit Facility \| Term loan E
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 125,000
Interest rate (percent)	4.29%
Principal amount	$ 125,000			125,000
Unsecured debt \| June 2029 term loan facility
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 285,000
Term loan, accordion feature, increase limit			15,000
Term loan, accordion feature, higher borrowing capacity option			$ 300,000
Interest rate (percent)	4.69%
Principal amount	$ 285,000			0
Unsecured debt \| June 2029 term loan facility \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	1.00%
Unsecured debt \| June 2029 term loan facility \| Secured Overnight Financing Rate (SOFR) \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	1.55%
Unsecured debt \| June 2029 term loan facility \| Secured Overnight Financing Rate (SOFR) \| Minimum \| Variable Rate Component One
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	1.075%
Unsecured debt \| June 2029 term loan facility \| Secured Overnight Financing Rate (SOFR) \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	2.20%
Unsecured debt \| June 2029 term loan facility \| Secured Overnight Financing Rate (SOFR) \| Maximum \| Variable Rate Component One
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	2.20%
Unsecured debt \| June 2029 term loan facility \| Base Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	0.55%
Unsecured debt \| June 2029 term loan facility \| Base Rate \| Minimum \| Variable Rate Component One
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	0.075%
Unsecured debt \| June 2029 term loan facility \| Base Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	1.20%
Unsecured debt \| June 2029 term loan facility \| Base Rate \| Maximum \| Variable Rate Component One
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	1.20%
Unsecured debt \| 2029 Senior Unsecured Notes
Debt Instrument [Line Items]
Interest rate (percent)	3.98%
Principal amount	$ 100,000			100,000
Unsecured debt \| November 2030 Senior Unsecured Notes
Debt Instrument [Line Items]
Interest rate (percent)	2.72%				2.72%
Principal amount	$ 75,000			75,000	$ 75,000
Unsecured debt \| November 2031 Senior Unsecured Notes
Debt Instrument [Line Items]
Interest rate (percent)	2.81%				2.81%
Principal amount	$ 175,000			175,000	$ 175,000
Unsecured debt \| November 2033 Senior Unsecured Notes
Debt Instrument [Line Items]
Interest rate (percent)	2.96%
Principal amount	$ 125,000			0
Unsecured debt \| November 2036 Senior Notes
Debt Instrument [Line Items]
Principal amount					125,000
Unsecured debt \| November 2032 Senior Unsecured Notes
Debt Instrument [Line Items]
Interest rate (percent)	5.06%	5.06%
Principal amount	$ 200,000	$ 200,000		0
Unsecured debt \| 2036 Senior Unsecured Notes
Debt Instrument [Line Items]
Interest rate (percent)	3.06%
Principal amount	$ 75,000			75,000	$ 75,000
Revolving line of credit \| Credit Facility \| Revolving line of credit
Debt Instrument [Line Items]
Maximum borrowing capacity	650,000
Revolving line of credit remaining borrowing capacity	$ 211,800
Interest rate (percent)	4.39%
Principal amount	$ 432,000			$ 490,000
Revolving line of credit \| Credit Facility \| Letter of credit
Debt Instrument [Line Items]
Letters of credit outstanding	$ 6,200