EARNINGS PER SHARE - Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Numerator | |||||||||||
| Net income | $ 18,826 | $ 16,514 | $ 17,733 | $ 12,940 | $ 14,483 | $ 16,829 | $ 13,041 | $ 11,973 | $ 66,013 | $ 56,326 | $ 45,998 |
| Net income attributable to noncontrolling interests | (62,030) | (42,217) | (43,037) | ||||||||
| Net income attributable to National Storage Affiliates Trust | 3,983 | 14,109 | 2,961 | ||||||||
| Distributions to preferred shareholders | (12,390) | (10,350) | (2,300) | ||||||||
| Distributed and undistributed earnings allocated to participating securities | (35) | (27) | (28) | ||||||||
| Net (loss) income attributable to common shareholders - basic and diluted | $ (8,442) | $ 3,732 | $ 633 | ||||||||
| Denominator | |||||||||||
| Weighted average shares outstanding - basic and diluted (in shares) | 58,208 | 53,293 | 44,423 | ||||||||
| Earnings (loss) per share - basic and diluted (in dollars per share) | $ (0.15) | $ 0.07 | $ 0.01 | ||||||||
| Dividends declared per common share (in dollars per share) | $ 1.27 | $ 1.16 | $ 1.04 | ||||||||
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- Definition Undistributed Earnings (Loss) Available To Common Shareholders, Basic And Diluted No definition available.
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- References No definition available.
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. No definition available.
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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